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Changed file structure
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chhan11
parent
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fef6796951
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@ -1,3 +1,5 @@
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\chapter{DHCP}
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\section{DHCP Process}
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\section{DHCP Process}
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\fig{dhcp/dhcpdiscoverprocess}{dhcpdiscoverprocess}{DHCP Discover Process}
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\fig{dhcp/dhcpdiscoverprocess}{dhcpdiscoverprocess}{DHCP Discover Process}
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@ -25,18 +27,18 @@
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\subsection{Cisco}
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\subsection{Cisco}
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\begin{txt}
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\begin{txt}
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ip dhcp excluded-address 192.168.0.254
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ip dhcp excluded-address 192.168.0.254
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!
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!
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ip dhcp pool LAN-1-POOL-DHCP
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ip dhcp pool LAN-1-POOL-DHCP
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network 192.168.0.0 255.255.255.0
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network 192.168.0.0 255.255.255.0
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default-router 192.168.0.254
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default-router 192.168.0.254
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lease 2 ! set in days
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lease 2 ! set in days
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\end{txt}
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\end{txt}
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When configuring a Layer 3 interface as a relay port for DHCP request for a subnet. Set the ip helper command on the interface with one \textit{or} more ip addresses.
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When configuring a Layer 3 interface as a relay port for DHCP request for a subnet. Set the ip helper command on the interface with one \textit{or} more ip addresses.
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\begin{txt}
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\begin{txt}
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interface GigabitEthernet 0/3
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interface GigabitEthernet 0/3
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ip helper-address 192.168.220.220
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ip helper-address 192.168.220.220
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ip helper-address 192.168.222.222
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ip helper-address 192.168.222.222
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\end{txt}
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\end{txt}
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7
chapter/fhrp.tex
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7
chapter/fhrp.tex
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@ -0,0 +1,7 @@
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\chapter{FHRP}
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\section{VRRP}
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\section{GLBP}
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\section{HSRP}
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11
chapter/internet.tex
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11
chapter/internet.tex
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@ -0,0 +1,11 @@
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\chapter{The Internet {\footnotesize "Post cold-war modern times"}}
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\section{Service Providers}
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\section{IXP}
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\section{MPLS}
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\section{BGP}
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\section{EVPN}
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@ -1,3 +1,5 @@
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\chapter{L2 to L3}
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\section{Vlan-to-vlan routing}
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\section{Vlan-to-vlan routing}
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\myquote{}{Guidance and Understanding of the art of Layer 3 networks. Routing between different slash 24\tsq{s}.\\ \textit{Aka. Inter-vlan routing.}}
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\myquote{}{Guidance and Understanding of the art of Layer 3 networks. Routing between different slash 24\tsq{s}.\\ \textit{Aka. Inter-vlan routing.}}
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@ -26,32 +28,32 @@ There are different ways to go \tsq{bout} Inter-vlan routing and doing it.
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\subsubsection{Routed interfaces}
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\subsubsection{Routed interfaces}
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\begin{txt}
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\begin{txt}
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interface GigabitEthernet 0/1.10
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interface GigabitEthernet 0/1.10
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encapsulation dot1q 10
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encapsulation dot1q 10
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ip address 192.168.0.1 255.255.255.128
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ip address 192.168.0.1 255.255.255.128
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!
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!
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interface GigabitEthernet 0/1.20
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interface GigabitEthernet 0/1.20
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encapsulation dot1q 20
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encapsulation dot1q 20
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ip address 192.168.0.129 255.255.255.128
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ip address 192.168.0.129 255.255.255.128
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\end{txt}
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\end{txt}
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\subsubsection{Switches interfaces}
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\subsubsection{Switches interfaces}
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\begin{txt}
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\begin{txt}
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Vlan10
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Vlan10
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name VLAN10
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name VLAN10
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Vlan20
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Vlan20
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name VLAN20
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name VLAN20
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!
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!
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interface Vlan10
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interface Vlan10
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ip address 192.168.1.1 255.255.255.128
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ip address 192.168.1.1 255.255.255.128
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interface Vlan20
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interface Vlan20
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ip address 192.168.1.129 255.255.255.128
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ip address 192.168.1.129 255.255.255.128
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!
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!
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interface GigabitEthernet 0/2
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interface GigabitEthernet 0/2
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switchport mode trunk
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switchport mode trunk
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switchport trunk encapsulation dot1q
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switchport trunk encapsulation dot1q
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switchport trunk allowed vlan 10,20
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switchport trunk allowed vlan 10,20
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\end{txt}
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\end{txt}
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\pagebreak
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\pagebreak
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7
chapter/layer2.tex
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7
chapter/layer2.tex
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\chapter{Layer 2}
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\input{layer2/switchednetwork}
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\newpage
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\input{layer2/spanningtree}
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3
chapter/layer3.tex
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3
chapter/layer3.tex
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@ -0,0 +1,3 @@
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\chapter{Layer 3}
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\input{layer3/routednetwork}
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14
chapter/mgmt.tex
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14
chapter/mgmt.tex
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@ -0,0 +1,14 @@
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\chapter{Management}
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\section{Network management}
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\subsection{Routers}
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\subsection{Switches}
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\subsection{Firewall}
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\section{Out-of-band management}
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\subsection{Console server}
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120
chapter/networkmgmt.tex
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120
chapter/networkmgmt.tex
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\chapter{Triple A\tsq{s}}
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\myquote{}{Remember to log the details, too.}
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\xkcd{latitude}{Remember logging when necessary}
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\newpage
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\begin{itemize}
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\item \textbf{Authentication:}
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\begin{enumerate}
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\item Identify the user,
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\item Validate the user,
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\item Allow/Disallow user based upon credentials.
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\end{enumerate}
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\item \textbf{Authorization:}
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\begin{enumerate}
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\item Have defined levels of allowed operations/tasks divided into groups,
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\item Validate user-to-groups relations,
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\item Allow/Disallow user actions.
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\item On network gear the Allow/Disallowed actions can be stored on either the central \gls{aaa} server or locally\footnote{May not apply to all network gear} in the network node.
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\end{enumerate}
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\item \textbf{Accounting:}
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\begin{enumerate}
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\item Network nodes collect user and session information from start to end when connecting to a node,
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\item All information is transferred back to \gls{aaa} server,
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\item Transferred info can be leveraged for several purposes. Typically logged info is:
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\begin{itemize}
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\item session duration,
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\item user commands,
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\item disallowed commands
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\end{itemize}
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\end{enumerate}
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\end{itemize}
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\bigskip
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\textbf{Obvious} benefits by using the \gls{aaa} is scalability, increased flexibility and granularity of assigned rights, standardization, having failover by using multiple triple a\tsq{s} server\footnote{Cisco devices uses the descending order in which \gls{aaa} servers are configured on the node}.
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\newpage
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\begin{table}[!ht]
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\centering
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\caption{Tacacs+ vs. Radius}
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\label{radiusversustacacsplus}
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\resizebox{\columnwidth}{!}{%
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\begin{tabular}{|l|l|l|l|l|}
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\hline
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\multicolumn{1}{|c|}{\textbf{Feature}} & \multicolumn{1}{c|}{\textbf{RADIUS}} & \multicolumn{1}{c|}{\textbf{TACACS+}} \\ \hline
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Developer & \begin{tabular}[c]{@{}l@{}}Livington Enterprise\\ (now industry standard)\end{tabular} & \begin{tabular}[c]{@{}l@{}}Cisco\\ (proprietary)\end{tabular} \\ \hline
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Transport protocol & UDP ports 1812-1813 & TCP port 49 \\ \hline
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\gls{aaa} support & \begin{tabular}[c]{@{}l@{}}Combines authentication\\ and authorization and \\ separate accounting\end{tabular} & \begin{tabular}[c]{@{}l@{}}Uses the \gls{aaa}\\ model and sep-\\ arates all three\\ services\end{tabular} \\ \hline
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Challange response & \begin{tabular}[c]{@{}l@{}}One-way, unidirectional\\ (single challenge response)\end{tabular} & \begin{tabular}[c]{@{}l@{}}Two-way, bidirec-\\ tional (multiple\\ challenge responses)\end{tabular} \\ \hline
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Security & \begin{tabular}[c]{@{}l@{}}Encrypts only the password\\ in the packet\end{tabular} & \begin{tabular}[c]{@{}l@{}}Encrypt the entire\\ packet body\end{tabular} \\ \hline
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\end{tabular}%
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}
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\end{table}
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\newpage
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\section{RADIUS}
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\fig{radius/radiuscommunication}{radiuscommunication}{Radius handshake and communication}
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\begin{txt}
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radius server DK-RADIUS-SERVER
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address ipv4 radiusserver.example.com auth-port 1812 acct-port 1813
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key unkn0wn!unic@st.|.
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!
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aaa new-model
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aaa group server RADIUS
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server name DK-RADIUS-SERVER
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!
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aaa authentication login radius_list group RADIUS local
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!
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line vty 0-4
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login authentication radius_list
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line vty 5-15
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login authentication radius_list
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\end{txt}
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\newpage
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\section{TACACS+}
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\fig{tacacsplus/tacacspluscommunication}{tacacspluscommunication}{Tacacs plus handshake and communication}
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\begin{txt}
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aaa group server tacacs+ TACACS
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server-private 1.1.1.1 unkn0wn!unicAst
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ip tacacs source-interface Loopback0
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!
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aaa authentication attempts login 1
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aaa authentication login default group TACACS local-case
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aaa authentication login console local-case
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aaa authentication enable default group TACACS enable
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aaa authorization exec default group TACACS local
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aaa authorization commands 0 default group TACACS local
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aaa authorization commands 15 default group TACACS local
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aaa accounting exec default
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action-type start-stop
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group tacacs+
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!
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aaa accounting commands 1 default
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action-type start-stop
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group tacacs+
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!
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aaa accounting commands 2 default
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action-type start-stop
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group tacacs+
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!
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aaa accounting commands 15 default
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action-type start-stop
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group tacacs+
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!
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aaa session-id common
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!
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tacacs-server host 10.21.0.45
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tacacs-server unkn0wn!unicAst
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\end{txt}
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6
chapter/ntp.tex
Normal file
6
chapter/ntp.tex
Normal file
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@ -0,0 +1,6 @@
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\chapter{Network Time Protocol}
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\section{The old NTP from \tsq{85}}
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\section{Secure NTP}
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201
main.tex
201
main.tex
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@ -27,208 +27,25 @@
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% <!-- CONFIGURATION EXAMPLES -->
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\include{chapter/baseconf}
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\include{chapter/baseconf}
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% <!-- LAYER 2 -->
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\include{chapter/layer2}
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\chapter{Layer 2}
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\include{chapter/l2tol3}
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\input{chapter/section/switchednetwork}
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\include{chapter/layer3}
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\newpage
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\include{chapter/dhcp}
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\input{chapter/section/spanningtree}
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\include{chapter/fhrp}
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% <!-- INTERVLAN -->
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\include{chapter/networkmgmt}
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\chapter{L2 to L3}
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\include{chapter/ntp}
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\input{chapter/section/intervlanrouting}
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\include{chapter/mgmt}
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% <!-- DHCP -->
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\include{chapter/internet}
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\chapter{DHCP}
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\input{chapter/section/dhcp}
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% <!-- VRRP, GLBP, HSRP -->
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\chapter{FHRP}
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\section{VRRP}
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\section{GLBP}
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\section{HSRP}
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% <!-- ACCOUNTING AND LOGINS, RADIUS, TACACS+ -->
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\chapter{Triple A\tsq{s}}
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\myquote{}{Remember to log the details, too.}
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\xkcd{latitude}{Remember logging when necessary}
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\newpage
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\begin{itemize}
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\item \textbf{Authentication:}
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\begin{enumerate}
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\item Identify the user,
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\item Validate the user,
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\item Allow/Disallow user based upon credentials.
|
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\end{enumerate}
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\item \textbf{Authorization:}
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\begin{enumerate}
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\item Have defined levels of allowed operations/tasks divided into groups,
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\item Validate user-to-groups relations,
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\item Allow/Disallow user actions.
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\item On network gear the Allow/Disallowed actions can be stored on either the central \gls{aaa} server or locally\footnote{May not apply to all network gear} in the network node.
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\end{enumerate}
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\item \textbf{Accounting:}
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\begin{enumerate}
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\item Network nodes collect user and session information from start to end when connecting to a node,
|
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\item All information is transferred back to \gls{aaa} server,
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\item Transferred info can be leveraged for several purposes. Typically logged info is:
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\begin{itemize}
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\item session duration,
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\item user commands,
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\item disallowed commands
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\end{itemize}
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\end{enumerate}
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\end{itemize}
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\bigskip
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\textbf{Obvious} benefits by using the \gls{aaa} is scalability, increased flexibility and granularity of assigned rights, standardization, having failover by using multiple triple a\tsq{s} server\footnote{Cisco devices uses the descending order in which \gls{aaa} servers are configured on the node}.
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\newpage
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\begin{table}[!ht]
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\centering
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\caption{Tacacs+ vs. Radius}
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\label{radiusversustacacsplus}
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\resizebox{\columnwidth}{!}{%
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\begin{tabular}{|l|l|l|l|l|}
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\hline
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\multicolumn{1}{|c|}{\textbf{Feature}} & \multicolumn{1}{c|}{\textbf{RADIUS}} & \multicolumn{1}{c|}{\textbf{TACACS+}} \\ \hline
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Developer & \begin{tabular}[c]{@{}l@{}}Livington Enterprise\\ (now industry standard)\end{tabular} & \begin{tabular}[c]{@{}l@{}}Cisco\\ (proprietary)\end{tabular} \\ \hline
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Transport protocol & UDP ports 1812-1813 & TCP port 49 \\ \hline
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\gls{aaa} support & \begin{tabular}[c]{@{}l@{}}Combines authentication\\ and authorization and \\ separate accounting\end{tabular} & \begin{tabular}[c]{@{}l@{}}Uses the \gls{aaa}\\ model and sep-\\ arates all three\\ services\end{tabular} \\ \hline
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Challange response & \begin{tabular}[c]{@{}l@{}}One-way, unidirectional\\ (single challenge response)\end{tabular} & \begin{tabular}[c]{@{}l@{}}Two-way, bidirec-\\ tional (multiple\\ challenge responses)\end{tabular} \\ \hline
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Security & \begin{tabular}[c]{@{}l@{}}Encrypts only the password\\ in the packet\end{tabular} & \begin{tabular}[c]{@{}l@{}}Encrypt the entire\\ packet body\end{tabular} \\ \hline
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\end{tabular}%
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}
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\end{table}
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\newpage
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|
|
||||||
\section{RADIUS}
|
|
||||||
|
|
||||||
\fig{radius/radiuscommunication}{radiuscommunication}{Radius handshake and communication}
|
|
||||||
|
|
||||||
\begin{txt}
|
|
||||||
radius server DK-RADIUS-SERVER
|
|
||||||
address ipv4 radiusserver.example.com auth-port 1812 acct-port 1813
|
|
||||||
key unkn0wn!unic@st.|.
|
|
||||||
!
|
|
||||||
aaa new-model
|
|
||||||
aaa group server RADIUS
|
|
||||||
server name DK-RADIUS-SERVER
|
|
||||||
!
|
|
||||||
aaa authentication login radius_list group RADIUS local
|
|
||||||
!
|
|
||||||
line vty 0-4
|
|
||||||
login authentication radius_list
|
|
||||||
line vty 5-15
|
|
||||||
login authentication radius_list
|
|
||||||
\end{txt}
|
|
||||||
|
|
||||||
\newpage
|
|
||||||
|
|
||||||
\section{TACACS+}
|
|
||||||
|
|
||||||
\fig{tacacsplus/tacacspluscommunication}{tacacspluscommunication}{Tacacs plus handshake and communication}
|
|
||||||
|
|
||||||
\begin{txt}
|
|
||||||
aaa group server tacacs+ TACACS
|
|
||||||
server-private 1.1.1.1 unkn0wn!unicAst
|
|
||||||
ip tacacs source-interface Loopback0
|
|
||||||
!
|
|
||||||
aaa authentication attempts login 1
|
|
||||||
aaa authentication login default group TACACS local-case
|
|
||||||
aaa authentication login console local-case
|
|
||||||
aaa authentication enable default group TACACS enable
|
|
||||||
aaa authorization exec default group TACACS local
|
|
||||||
aaa authorization commands 0 default group TACACS local
|
|
||||||
aaa authorization commands 15 default group TACACS local
|
|
||||||
aaa accounting exec default
|
|
||||||
action-type start-stop
|
|
||||||
group tacacs+
|
|
||||||
!
|
|
||||||
aaa accounting commands 1 default
|
|
||||||
action-type start-stop
|
|
||||||
group tacacs+
|
|
||||||
!
|
|
||||||
aaa accounting commands 2 default
|
|
||||||
action-type start-stop
|
|
||||||
group tacacs+
|
|
||||||
!
|
|
||||||
aaa accounting commands 15 default
|
|
||||||
action-type start-stop
|
|
||||||
group tacacs+
|
|
||||||
!
|
|
||||||
aaa session-id common
|
|
||||||
!
|
|
||||||
tacacs-server host 10.21.0.45
|
|
||||||
tacacs-server unkn0wn!unicAst
|
|
||||||
\end{txt}
|
|
||||||
|
|
||||||
% <!-- NTP -->
|
|
||||||
|
|
||||||
\chapter{Network Time Protocol}
|
|
||||||
|
|
||||||
\section{The old NTP from \tsq{85}}
|
|
||||||
|
|
||||||
\section{Secure NTP}
|
|
||||||
|
|
||||||
% <!-- NETWORK MANAGEMENT -->
|
|
||||||
|
|
||||||
\chapter{Managemnt}
|
|
||||||
|
|
||||||
\section{Network management}
|
|
||||||
|
|
||||||
\subsection{Routers}
|
|
||||||
|
|
||||||
\subsection{Switches}
|
|
||||||
|
|
||||||
\subsection{Firewall}
|
|
||||||
|
|
||||||
\section{Out-of-band management}
|
|
||||||
|
|
||||||
\subsection{Console server}
|
|
||||||
|
|
||||||
% <!-- LAYER 3 STUFF -->
|
|
||||||
|
|
||||||
\chapter{Protocols Layer 3}
|
|
||||||
|
|
||||||
\input{chapter/section/routednetwork}
|
|
||||||
|
|
||||||
% <!-- DESCRIBE THE INTERNET -->
|
|
||||||
|
|
||||||
\chapter{The Internet {\footnotesize "Post cold-war modern times"}}
|
|
||||||
|
|
||||||
\section{Service Providers}
|
|
||||||
|
|
||||||
\section{IXP}
|
|
||||||
|
|
||||||
\section{MPLS}
|
|
||||||
|
|
||||||
\section{BGP}
|
|
||||||
|
|
||||||
\section{EVPN}
|
|
||||||
|
|
||||||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||||||
% %
|
% %
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue