\documentclass[10pt,a4paper]{article} % Packages \usepackage{fancyhdr} % For header and footer \usepackage{multicol} % Allows multicols in tables \usepackage{tabularx} % Intelligent column widths \usepackage{tabulary} % Used in header and footer \usepackage{hhline} % Border under tables \usepackage{graphicx} % For images \usepackage{xcolor} % For hex colours %\usepackage[utf8x]{inputenc} % For unicode character support \usepackage[T1]{fontenc} % Without this we get weird character replacements \usepackage{colortbl} % For coloured tables \usepackage{setspace} % For line height \usepackage{lastpage} % Needed for total page number \usepackage{seqsplit} % Splits long words. %\usepackage{opensans} % Can't make this work so far. Shame. Would be lovely. \usepackage[normalem]{ulem} % For underlining links % Most of the following are not required for the majority % of cheat sheets but are needed for some symbol support. \usepackage{amsmath} % Symbols \usepackage{MnSymbol} % Symbols \usepackage{wasysym} % Symbols %\usepackage[english,german,french,spanish,italian]{babel} % Languages % Document Info \author{megon} \pdfinfo{ /Title (routing-fundamentals.pdf) /Creator (Cheatography) /Author (megon) /Subject (Routing Fundamentals Cheat Sheet) } % Lengths and widths \addtolength{\textwidth}{6cm} \addtolength{\textheight}{-1cm} \addtolength{\hoffset}{-3cm} \addtolength{\voffset}{-2cm} \setlength{\tabcolsep}{0.2cm} % Space between columns \setlength{\headsep}{-12pt} % Reduce space between header and content \setlength{\headheight}{85pt} % If less, LaTeX automatically increases it \renewcommand{\footrulewidth}{0pt} % Remove footer line \renewcommand{\headrulewidth}{0pt} % Remove header line \renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit % This two commands together give roughly % the right line height in the tables \renewcommand{\arraystretch}{1.3} \onehalfspacing % Commands \newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour \newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols \newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns \newcommand{\tn}{\tabularnewline} % Required as custom column type in use % Font and Colours \definecolor{HeadBackground}{HTML}{333333} \definecolor{FootBackground}{HTML}{666666} \definecolor{TextColor}{HTML}{333333} \definecolor{DarkBackground}{HTML}{D87093} \definecolor{LightBackground}{HTML}{FCF6F8} \renewcommand{\familydefault}{\sfdefault} \color{TextColor} % Header and Footer \pagestyle{fancy} \fancyhead{} % Set header to blank \fancyfoot{} % Set footer to blank \fancyhead[L]{ \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{C} \SetRowColor{DarkBackground} \vspace{-7pt} {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}} } \end{tabulary} \columnbreak \begin{tabulary}{11cm}{L} \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Routing Fundamentals Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{megon} via \textcolor{DarkBackground}{\uline{cheatography.com/193529/cs/40275/}}} \end{tabulary} \end{multicols}} \fancyfoot[L]{ \footnotesize \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{LL} \SetRowColor{FootBackground} \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}} \\ \vspace{-2pt}megon \\ \uline{cheatography.com/megon} \\ \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}} \\ \vspace{-2pt}Not Yet Published.\\ Updated 26th September, 2023.\\ Page {\thepage} of \pageref{LastPage}. \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}} \\ \SetRowColor{white} \vspace{-5pt} %\includegraphics[width=48px,height=48px]{dave.jpeg} Measure your website readability!\\ www.readability-score.com \end{tabulary} \end{multicols}} \begin{document} \raggedright \raggedcolumns % Set font size to small. Switch to any value % from this page to resize cheat sheet text: % www.emerson.emory.edu/services/latex/latex_169.html \footnotesize % Small font. \begin{multicols*}{2} \begin{tabularx}{8.4cm}{x{2.48 cm} x{5.52 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Factory Reset}} \tn % Row 0 \SetRowColor{LightBackground} R\# sh run & {\bf{Check}}: hostname, interface, ip, duplex \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} R\# write erase & {[}confirm{]} \{\{fa-level-up\}\} \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} R\# reload & Continue with configuration dialog?: {\bf{no}} \tn % Row Count 6 (+ 2) % Row 3 \SetRowColor{white} {\bf{Check results}}: & `\# sh run` and `\# show start` \tn % Row Count 8 (+ 2) % Row 4 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{{\bf{Configuration}}} \tn % Row Count 9 (+ 1) % Row 5 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R\# config t} \tn % Row Count 10 (+ 1) % Row 6 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{R(config)\# hostname {[}name{]}} \tn % Row Count 11 (+ 1) % Row 7 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R(config)\# interface GigabitEthernet{\bf{{[}0/0{]}}}} \tn % Row Count 12 (+ 1) % Row 8 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{R(config-if)\# ip address {[}IP{]} {[}mask{]}} \tn % Row Count 13 (+ 1) % Row 9 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R(config-if)\# duplex auto} \tn % Row Count 14 (+ 1) % Row 10 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{R(config-if)\# speed auto} \tn % Row Count 15 (+ 1) % Row 11 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R(config-if)\# no shutdown} \tn % Row Count 16 (+ 1) % Row 12 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{R(config-if)\#line con 0} \tn % Row Count 17 (+ 1) % Row 13 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R(config-line)\# exec-timeout 30 0} \tn % Row Count 18 (+ 1) % Row 14 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{R(config-line)\#end} \tn % Row Count 19 (+ 1) % Row 15 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R\# copy run start} \tn % Row Count 20 (+ 1) % Row 16 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{} \tn % Row Count 20 (+ 0) % Row 17 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R\# sh ip route} \tn % Row Count 21 (+ 1) % Row 18 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{R\# show run | section interface} \tn % Row Count 22 (+ 1) % Row 19 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{} \tn % Row Count 22 (+ 0) % Row 20 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{{\bf{Disable interface FastEthernet 0/0 }}} \tn % Row Count 23 (+ 1) % Row 21 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R(config)\# interface fastEthernet 0/0} \tn % Row Count 24 (+ 1) % Row 22 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{R(config-if)\# shutdown} \tn % Row Count 25 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Configure IP addresses on Router}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{R\#config t} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \mymulticolumn{1}{x{8.4cm}}{R(config)\# int f0/0} \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{R(config-if)\# ip address {[}IP{]} {[}mask{]}} \tn % Row Count 3 (+ 1) % Row 3 \SetRowColor{white} \mymulticolumn{1}{x{8.4cm}}{R(config-if)\# no shut} \tn % Row Count 4 (+ 1) % Row 4 \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{{\bf{Verify routes have been added}}} \tn % Row Count 5 (+ 1) % Row 5 \SetRowColor{white} \mymulticolumn{1}{x{8.4cm}}{R\# show ip route} \tn % Row Count 6 (+ 1) % Row 6 \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{{\bf{Verify the traffic path from PC to PC}}:} \tn % Row Count 7 (+ 1) % Row 7 \SetRowColor{white} \mymulticolumn{1}{x{8.4cm}}{`C:\textbackslash{}\textgreater{}ping {[}IP{]}` and `C:\textbackslash{}\textgreater{}tracert {[}IP{]}`} \tn % Row Count 8 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}-} \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{Switch ports are not shutdown by default.} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Static Routes}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{R\# config t} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \mymulticolumn{1}{x{8.4cm}}{R(config)\# ip route {[}Destination IP subnet{]} {[}Destination IP subnet mask{]} {[}next-hop IP{]}} \tn % Row Count 3 (+ 2) % Row 2 \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{{\bf{Verify connectivity by ping}}} \tn % Row Count 4 (+ 1) % Row 3 \SetRowColor{white} \mymulticolumn{1}{x{8.4cm}}{{\bf{Verify the traffic path from PC to PC}}:} \tn % Row Count 5 (+ 1) % Row 4 \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{`C:\textbackslash{}\textgreater{}ping {[}IP{]}` and `C:\textbackslash{}\textgreater{}tracert {[}IP{]}`} \tn % Row Count 6 (+ 1) % Row 5 \SetRowColor{white} \mymulticolumn{1}{x{8.4cm}}{} \tn % Row Count 6 (+ 0) % Row 6 \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{{\bf{Remove static routes}}} \tn % Row Count 7 (+ 1) % Row 7 \SetRowColor{white} \mymulticolumn{1}{x{8.4cm}}{R\# config t} \tn % Row Count 8 (+ 1) % Row 8 \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{R(config)\# no ip route {[}Dest IP subnet{]} {[}Dest IP subnet mask{]} {[}next-hop IP{]}} \tn % Row Count 10 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Summary Routes}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{R\# config t} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \mymulticolumn{1}{x{8.4cm}}{R(config)\# ip route {[}IP subnet{]} {[}mask subnet{]} {[}next hop IP{]}} \tn % Row Count 3 (+ 2) % Row 2 \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{R(config)\# end} \tn % Row Count 4 (+ 1) % Row 3 \SetRowColor{white} \mymulticolumn{1}{x{8.4cm}}{R\# sh ip route} \tn % Row Count 5 (+ 1) % Row 4 \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{{\bf{Verify connectivity by ping}}} \tn % Row Count 6 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Default Route and Load Balancing}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{R\# config t} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \mymulticolumn{1}{x{8.4cm}}{R(config)\# int f0/0} \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{R(config-if)\# ip add {[}IP{]} {[}mask{]}} \tn % Row Count 3 (+ 1) % Row 3 \SetRowColor{white} \mymulticolumn{1}{x{8.4cm}}{R(config-if)\# no shut} \tn % Row Count 4 (+ 1) % Row 4 \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{{\bf{Ensure that each router has a route out to the internet}}} \tn % Row Count 6 (+ 2) % Row 5 \SetRowColor{white} \mymulticolumn{1}{x{8.4cm}}{R(config)\# ip route 0.0.0.0 0.0.0.0 {[}next hop IP{]}} \tn % Row Count 8 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{3.44 cm} x{4.56 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Routing Protocol}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{{\bf{Basic RIPv1 configuration + Enable RIPv2}}} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R(config)\# router rip} \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} \seqsplit{R(config-router)\#} version 2 & {\emph{Enable RIPv2}} \tn % Row Count 4 (+ 2) % Row 3 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R(config-router)\# no auto-summary} \tn % Row Count 5 (+ 1) % Row 4 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{R(config-router)\# network {[}ip subnet{]}} \tn % Row Count 6 (+ 1) % Row 5 \SetRowColor{white} R\# show ip route & {\emph{Check that RIP routes have been added}} \tn % Row Count 8 (+ 2) % Row 6 \SetRowColor{LightBackground} R\#sh ip rip database & {\emph{View the RIP database}} \tn % Row Count 10 (+ 2) % Row 7 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{} \tn % Row Count 10 (+ 0) % Row 8 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{{\bf{Inject the default static route}}} \tn % Row Count 11 (+ 1) % Row 9 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R(config)\# router rip} \tn % Row Count 12 (+ 1) % Row 10 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{R(config-router)\# default-information originate} \tn % Row Count 13 (+ 1) % Row 11 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{} \tn % Row Count 13 (+ 0) % Row 12 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{{\bf{Debug the routing protocol updates}}} \tn % Row Count 14 (+ 1) % Row 13 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R\# debug ip rip} \tn % Row Count 15 (+ 1) % Row 14 \SetRowColor{LightBackground} R\# undebug all & {\emph{Turn off all debugging}} \tn % Row Count 17 (+ 2) % Row 15 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{} \tn % Row Count 17 (+ 0) % Row 16 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{{\bf{Basic EIGRP configuration}}} \tn % Row Count 18 (+ 1) % Row 17 \SetRowColor{white} R(config)\# router eigrp 100 & // R(config-router)\# network {[}IP subnet{]} \tn % Row Count 20 (+ 2) % Row 18 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{R(config-router)\# no auto-summary} \tn % Row Count 21 (+ 1) % Row 19 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R(config-router)\# network {[}IP{]} {[}mask{]}} \tn % Row Count 22 (+ 1) % Row 20 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{} \tn % Row Count 22 (+ 0) % Row 21 \SetRowColor{white} R(config)\# no router eigrp 100 & {\emph{remove/ disable EIGRP}} \tn % Row Count 24 (+ 2) % Row 22 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{} \tn % Row Count 24 (+ 0) % Row 23 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R\# sh ip eigrp neighbors} \tn % Row Count 25 (+ 1) % Row 24 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{} \tn % Row Count 25 (+ 0) % Row 25 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{{\bf{Loopback configuration}}} \tn % Row Count 26 (+ 1) % Row 26 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{R(config)\#interface loopback0} \tn % Row Count 27 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{3.44 cm} x{4.56 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Adjacencies and Passive Interfaces}} \tn % Row 0 \SetRowColor{LightBackground} R\# show ip eigrp neighbors & {\emph{Verify that R"x" has established EIGRP adjacencies with R"y"}} \tn % Row Count 3 (+ 3) % Row 1 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{} \tn % Row Count 3 (+ 0) % Row 2 \SetRowColor{LightBackground} R(config-if)\# router eigrp 100 & {\emph{Configure the loopback interface and the link as passive interfaces}} \tn % Row Count 7 (+ 4) % Row 3 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R(config-router)\# passive-interface loopback0} \tn % Row Count 8 (+ 1) % Row 4 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{R(config-router)\# passive-interface fastethernet1/1} \tn % Row Count 10 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Basic OSPF configuration}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{R(config)\# router ospf 1} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} R(config-router)\# network {[}IP subnet{]} {[}wildcard mask{]} area 0 & {\emph{Ex: network 10.0.0.0 0.255.255.255 area 0}} \tn % Row Count 4 (+ 3) % Row 2 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{} \tn % Row Count 4 (+ 0) % Row 3 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{{\bf{OSPF Verification}}} \tn % Row Count 5 (+ 1) % Row 4 \SetRowColor{LightBackground} R\# sh run | section ospf & {\emph{show run | section ospf}} \tn % Row Count 7 (+ 2) % Row 5 \SetRowColor{white} R\# sh ip protocols & {\emph{show ip protocols}} \tn % Row Count 8 (+ 1) % Row 6 \SetRowColor{LightBackground} R\# show ip ospf interface brief & {\emph{show ip ospf interface brief}} \tn % Row Count 10 (+ 2) % Row 7 \SetRowColor{white} R\# show ip ospf neighbor & {\emph{show ip ospf neighbor}} \tn % Row Count 12 (+ 2) % Row 8 \SetRowColor{LightBackground} R\# show ip ospf database & {\emph{show ip ospf database}} \tn % Row Count 14 (+ 2) % Row 9 \SetRowColor{white} R\# show ip route & {\emph{show ip route}} \tn % Row Count 15 (+ 1) % Row 10 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{} \tn % Row Count 15 (+ 0) % Row 11 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{{\bf{Remove/ Disable OSPF}}} \tn % Row Count 16 (+ 1) % Row 12 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{R(config)\# no router ospf 1} \tn % Row Count 17 (+ 1) % Row 13 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{} \tn % Row Count 17 (+ 0) % Row 14 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{{\bf{OSPF Router ID}}} \tn % Row Count 18 (+ 1) % Row 15 \SetRowColor{white} R\# sh ip int brief & {\emph{Check Loopback or No Loopback}} \tn % Row Count 20 (+ 2) % Row 16 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{R\# show ip protocols} \tn % Row Count 21 (+ 1) % Row 17 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{} \tn % Row Count 21 (+ 0) % Row 18 \SetRowColor{LightBackground} R(config-router)\# router ospf 1 & {\emph{Manually Configured}} \tn % Row Count 23 (+ 2) % Row 19 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R\#(config-router)\# router-id 2.2.2.2} \tn % Row Count 24 (+ 1) % Row 20 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{R\# clear ip ospf process} \tn % Row Count 25 (+ 1) % Row 21 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R\# show ip protocols} \tn % Row Count 26 (+ 1) % Row 22 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{} \tn % Row Count 26 (+ 0) % Row 23 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{{\bf{Passive Interface Configuration}}} \tn % Row Count 27 (+ 1) % Row 24 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{R1(config-router)\# router ospf 1} \tn % Row Count 28 (+ 1) % Row 25 \SetRowColor{white} \seqsplit{R1\#(config-router)\#} passive-interface {[}loopback 0{]} & {\emph{ex2: \seqsplit{R\#(config-router)\#} passive-interface f2/0}} \tn % Row Count 31 (+ 3) \end{tabularx} \par\addvspace{1.3em} \vfill \columnbreak \begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Basic OSPF configuration (cont)}} \tn % Row 26 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{} \tn % Row Count 0 (+ 0) % Row 27 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R1(config-router)\# router ospf 1} \tn % Row Count 1 (+ 1) % Row 28 \SetRowColor{LightBackground} \seqsplit{R1\#(config-router)\#} passive-interface default & {\emph{set passive interface as the default}} \tn % Row Count 4 (+ 3) % Row 29 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R1\#(config-router)\# no passive-interface {[}f0/0{]}} \tn % Row Count 5 (+ 1) % Row 30 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{} \tn % Row Count 5 (+ 0) % Row 31 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{{\bf{Default Route Injection}}} \tn % Row Count 6 (+ 1) % Row 32 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{R4(config)\#ip route 0.0.0.0 0.0.0.0 203.0.113.2} \tn % Row Count 7 (+ 1) % Row 33 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R4(config)\#router ospf 1} \tn % Row Count 8 (+ 1) % Row 34 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\seqsplit{R4(config-router)\#default-information} originate} \tn % Row Count 9 (+ 1) % Row 35 \SetRowColor{white} -{}-{}-\textgreater{} R1\#sh ip route & {\emph{Default Route Injection Verification}} \tn % Row Count 11 (+ 2) % Row 36 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{} \tn % Row Count 11 (+ 0) % Row 37 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{{\bf{OSPD Areas}}} \tn % Row Count 12 (+ 1) % Row 38 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{R(config)\# router ospf 1} \tn % Row Count 13 (+ 1) % Row 39 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{R(config-router)\# network {[}IP subnet{]} {[}wildcard mask{]} area 0} \tn % Row Count 15 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}