{"id":2222,"date":"2019-07-27T17:05:21","date_gmt":"2019-07-27T17:05:21","guid":{"rendered":"http:\/\/wiki.thomasandsofia.com\/?p=2222"},"modified":"2020-07-03T16:22:56","modified_gmt":"2020-07-03T16:22:56","slug":"section-19-rip-the-routing-information-protocol","status":"publish","type":"post","link":"https:\/\/wiki.thomasandsofia.com\/?p=2222","title":{"rendered":"Section 19: RIP &#8211; The Routing Information Protocol"},"content":{"rendered":"<p><a href=\"http:\/\/wiki.thomasandsofia.com\/?p=2204\">&lt; Section 18<\/a> | <a href=\"\/course-introduction\/\">Home<\/a> | <a href=\"\/section-20-vlans-virtual-local-area-networks\/\">Section 20 &gt;<\/a><\/p>\n<p>59% Complete<\/p>\n<h1>RIP Commands Review<\/h1>\n<h2>Initial Configuration<\/h2>\n<ul>\n<li>Enable RIP<\/li>\n<\/ul>\n<pre>(config)# router rip<\/pre>\n<ul>\n<li>Set RIP Version<\/li>\n<\/ul>\n<pre>(config-router)# version 2<\/pre>\n<ul>\n<li>Disable auto-summary mask (automatically sets the classful subnet mask)<\/li>\n<\/ul>\n<pre>(config-router)# <strong>no auto-summary<\/strong><\/pre>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Instead, it is best to manually summerise\n<ul>\n<li>This is set on the interface that advertises the network, NOT the interface connected to the network!<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<pre>r02(config)#int f0\/0\r\n(config-if)#ip summary-address rip 10.1.0.0 255.255.0.0<\/pre>\n<ul>\n<li>Set the advertised classful network\n<ul>\n<li>(config-router)# network &lt;IP.ADD.RE.SS&gt;\n<ul>\n<li>network 10.0.0.0<\/li>\n<li>network 172.16.0.0<\/li>\n<li>network 192.168.1.0<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>Set a passive interface (Read, but do not send routing information)\n<ul>\n<li>(config-router)# passive-interface &lt;interface_id&gt;\n<ul>\n<li>passive-interface loopback 0<\/li>\n<li>passive-interface fastethernet 1\/0<\/li>\n<li>passive-interface f0\/2<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>Set all interfaces as passive by default\n<ul>\n<li>(config-router)# passive-interfaces default<\/li>\n<\/ul>\n<\/li>\n<li>Over-ride default passive-interfaces\n<ul>\n<li>(config-router)# no passive-interface &lt;interface_id&gt;<\/li>\n<\/ul>\n<\/li>\n<li>Over-ride default timers\n<ul>\n<li>(config-router)#timers basic &lt;Update&gt; &lt;Invalid&gt; &lt;Hold Down&gt; &lt;Flush&gt;\n<ul>\n<li>timers basic 30 180 180 240<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>Advertise the default route\n<ul>\n<li>(config-router)# default-information originate<\/li>\n<\/ul>\n<\/li>\n<li>Setting a summary-route &#8211; This must be set for the interface that advertises the route and not on the interface that connects to that route!\n<ul>\n<li>(config-if)# ip summary-address &lt;IP.ADD.RE.SS&gt; &lt;NET.WORK.MA.SK&gt;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Debug Commands<\/h2>\n<ul>\n<li>Watch RIP in real time\n<ul>\n<li>debug ip rip<\/li>\n<\/ul>\n<\/li>\n<li>Show RIP database\n<ul>\n<li># show ip rip database<\/li>\n<\/ul>\n<\/li>\n<li>Show all RIP settings\n<ul>\n<li># show ip protocols<\/li>\n<\/ul>\n<\/li>\n<li>Show all enabled routing protocols\n<ul>\n<li># show ip protocols<\/li>\n<\/ul>\n<\/li>\n<li>Show RIP timers\n<ul>\n<li># show ip protocols | include seconds<\/li>\n<\/ul>\n<\/li>\n<li>Show learned routes\n<ul>\n<li># show ip route<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h1>119. RIP Introduction<\/h1>\n<p><a href=\"https:\/\/www.udemy.com\/cisco-icnd1\/learn\/lecture\/8631702#content\" target=\"_blank\" rel=\"noopener\">https:\/\/www.udemy.com\/cisco-icnd1\/learn\/lecture\/8631702#content<\/a><\/p>\n<p>&nbsp;<\/p>\n<h1>120. RIP &#8211; The Routing Information Protocol<\/h1>\n<p><a href=\"https:\/\/www.udemy.com\/cisco-icnd1\/learn\/lecture\/8631706#content\" target=\"_blank\" rel=\"noopener\">https:\/\/www.udemy.com\/cisco-icnd1\/learn\/lecture\/8631706#content<\/a><\/p>\n<p><a href=\"https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/Screenshot-from-2020-07-01-05-45-15.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3044\" src=\"https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/Screenshot-from-2020-07-01-05-45-15.png\" alt=\"\" width=\"811\" height=\"131\" srcset=\"https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/Screenshot-from-2020-07-01-05-45-15.png 811w, https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/Screenshot-from-2020-07-01-05-45-15-300x48.png 300w, https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/Screenshot-from-2020-07-01-05-45-15-768x124.png 768w, https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/Screenshot-from-2020-07-01-05-45-15-150x24.png 150w\" sizes=\"auto, (max-width: 811px) 100vw, 811px\" \/><\/a><\/p>\n<h2>RIP Characteristics<\/h2>\n<ul>\n<li>RIP is a Distance Vector Protocol<\/li>\n<li>It uses hop count as its metric<\/li>\n<li>The maximum hop count is 15<\/li>\n<li>It will perform Equal Cost Multi Path, for up to 4 paths by default<\/li>\n<\/ul>\n<h2>RIPv1 vs v2 vs ng (Next Generation)<\/h2>\n<ul>\n<li>RIPv1 is legacy and is typically not used at all anymore, although it is still supported.<\/li>\n<li>RIPv1 does not send subnet mask information with routing updates, so Variable Length Subnet Masking (VLSM) is not supported.\u00a0 RIPv2 does support VLSM.<\/li>\n<li>RIPv1 updates are sent every 30 seconds as Broadcast traffic.\u00a0 RIPv2 uses Multicast address 224.0.0.9<\/li>\n<li>RIPng (Next Generation) supports IPv6\n<ul>\n<li>RIPng and RIPv1 are NOT covered on the CCNA exam.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>RIPv2 Configuration<\/h2>\n<pre>configure terminal\r\nrouter rip\r\nversion 2\r\nnetwork 10.0.0.0<\/pre>\n<ul>\n<li>The &#8216;network&#8217; command should be a classful network.\u00a0 No subnet mask is specified.<\/li>\n<\/ul>\n<h2>Auto-Summary<\/h2>\n<ul>\n<li>RIP will automatically summarize routes to the classful boundary by default.<\/li>\n<li>For example:\n<ul>\n<li>192.168.10.1\/30 will be advertised as 192.168.10.0\/24<\/li>\n<li>172.16.10.1\/30 will be advertised as 172.16.0.0\/16<\/li>\n<\/ul>\n<\/li>\n<li>This is almost never desirable.<\/li>\n<li>To disable auto-summary use &#8216;no auto-summary&#8217;<\/li>\n<\/ul>\n<pre>router rip\r\nno auto-summary<\/pre>\n<p>Manual Summerization<\/p>\n<ul>\n<li>Manual summerization gives you control of exactly ho you summarize.<\/li>\n<li>The individual summarized routes are not advertised &#8211; only their summary route<\/li>\n<li>Notice the summary address is advertised on the interface that the route is sent OUT of.. not the interface connected to that route!\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>This suggests that if you have multiple interfaces, each interface NOT connected to the summary route will need to have this configured?<\/li>\n<li>Since RIP is generally only used on very small networks, this is probably not much of an issue.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><a href=\"http:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-15.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2227\" src=\"http:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-15.png\" alt=\"\" width=\"808\" height=\"113\" srcset=\"https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-15.png 808w, https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-15-300x42.png 300w, https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-15-768x107.png 768w, https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-15-150x21.png 150w\" sizes=\"auto, (max-width: 808px) 100vw, 808px\" \/><\/a><\/p>\n<pre>R2(config)#interface f1\/0\r\nR2(config-if)#ip summary-address rip 10.0.0.0 255.255.0.0<\/pre>\n<h2>How to identify if RIP is enabled<\/h2>\n<h4>Show IP Protocols<\/h4>\n<pre>show ip protocols<\/pre>\n<h4>Check running-config<\/h4>\n<pre>show run | section rip<\/pre>\n<h4>Check the routing table<\/h4>\n<pre>show ip route<\/pre>\n<h4>Check the RIP database<\/h4>\n<ul>\n<li>This is useful to see if RIP routes were ever learned, even if they are not used in the routing table.<\/li>\n<\/ul>\n<pre>show ip rip database<\/pre>\n<p>60% Complete!<\/p>\n<h1>121. RIP Advanced Topics<\/h1>\n<p><a href=\"https:\/\/www.udemy.com\/cisco-icnd1\/learn\/lecture\/8631708#content\" target=\"_blank\" rel=\"noopener\">https:\/\/www.udemy.com\/cisco-icnd1\/learn\/lecture\/8631708#content<\/a><\/p>\n<h2>Passive Interfaces<\/h2>\n<ul>\n<li>Passive Interfaces work differently in RIP than other protocols.<\/li>\n<li>With other routing protocols, a passive interface will not send out or listen for routing updates\n<ul>\n<li>The network configured on the interface will be advertised to other peer routers running the routing protocol.<\/li>\n<\/ul>\n<\/li>\n<li>In RIP, a passive interface does not send out updates, but it does listen to incoming updates from other RIP speaking neighbors.<\/li>\n<li>The router can receive updates on the passive interface and use them in the routing table.<\/li>\n<\/ul>\n<h3>Passive Interface Configuration<\/h3>\n<p><a href=\"http:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-16.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2228\" src=\"http:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-16.png\" alt=\"\" width=\"1057\" height=\"292\" srcset=\"https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-16.png 1057w, https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-16-300x83.png 300w, https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-16-768x212.png 768w, https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-16-1024x283.png 1024w, https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-16-150x41.png 150w\" sizes=\"auto, (max-width: 1057px) 100vw, 1057px\" \/><\/a><\/p>\n<pre>R1(config)#router rip\r\nR1(config-router)#passive-interface loopback 0\r\nR1(config-router)#passive-interface f2\/0<\/pre>\n<ul>\n<li>This will receive information on both Loopback 0 and f2\/0<\/li>\n<li>It will not send any information out either of these interfaces.<\/li>\n<\/ul>\n<h3>Setting Passive Interfaces as default<\/h3>\n<ul>\n<li>If most routes are passive (you don&#8217;t want to send out routing information as a rule of thumb), you can set the default to be passive and manually configure the interfaces you do want to send out on.<\/li>\n<\/ul>\n<pre>R1(config)#router rip\r\nR1(config-router)#passive-interface default\r\nR1(config-router)#no passive-interface f0\/0\r\nR1(config-router)#no passive-interface f1\/0\r\nR1(config-router)#no passive-interface f3\/0<\/pre>\n<h2>Default Route Injection<\/h2>\n<p><a href=\"http:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-18.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2230\" src=\"http:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-18.png\" alt=\"\" width=\"1027\" height=\"288\" srcset=\"https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-18.png 1027w, https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-18-300x84.png 300w, https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-18-768x215.png 768w, https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-18-1024x287.png 1024w, https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-18-150x42.png 150w\" sizes=\"auto, (max-width: 1027px) 100vw, 1027px\" \/><\/a><\/p>\n<ul>\n<li>Used to configure a default static route going out to the Internet.<\/li>\n<li>It would be time consuming and hard to manage manually if a change was made.<\/li>\n<li>Configure it on the outbound router, then inject it into RIP to share with the other routers.<\/li>\n<li>The other routers will then share that route with each other automatically (no extra configuration necessary.)<\/li>\n<\/ul>\n<pre>R4(config)#ip route 0.0.0.0 0.0.0.0 203.0.113.2\r\nR4(config)#router rip\r\nR4(config-router)#default-information originate<\/pre>\n<pre>R1#show ip route\r\n...\r\nR     0.0.0.0.\/0 [120\/2] via 10.0.3.2, 00:00:21, FastEthernet3\/0\r\n...<\/pre>\n<h2>RIP Default Timers<\/h2>\n<ul>\n<li><strong>Update<\/strong>: The router sends updates every 30 seconds<\/li>\n<li><strong>Invalid<\/strong>: After no updates for 180 seconds, the route becomes invalid.\n<ul>\n<li>You would have lost 6 updates (by default) before marking a route as invalid.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Hold Down<\/strong>: The hold down timer is used to stabilize the network.\n<ul>\n<li>It starts when the invalid timer expires.<\/li>\n<li>When a route enters hold down, it can&#8217;t be installed even if there is a new router with a better metric.\n<ul>\n<li>In case you have a network connection that is going up and down.<\/li>\n<\/ul>\n<\/li>\n<li>180 seconds by default.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Flush<\/strong>: 240 seconds from the<strong> last update<\/strong> the route is flushed.<\/li>\n<li>Each of these times can be manually set to achieve faster convergence times.\n<ul>\n<li>This can introduce instability if the timers are set too low.<\/li>\n<\/ul>\n<\/li>\n<li>All routers in the network should have the same timer settings.<\/li>\n<li>The Update timer <strong>must<\/strong> be lower than the other timers.<\/li>\n<\/ul>\n<pre>R2(config)#router rip\r\nR2(config-router)#timers basic 10 90 90 120<\/pre>\n<p>timers basic &lt;update&gt; &lt;Invalid&gt; &lt;Hold Down&gt; &lt;Flush&gt;<\/p>\n<h1>122. RIP Lab Demo<\/h1>\n<p><a href=\"https:\/\/www.udemy.com\/cisco-icnd1\/learn\/lecture\/8631712#content\" target=\"_blank\" rel=\"noopener\">https:\/\/www.udemy.com\/cisco-icnd1\/learn\/lecture\/8631712#content<\/a><\/p>\n<p><a href=\"http:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-10.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2209\" src=\"http:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-10.png\" alt=\"\" width=\"603\" height=\"309\" srcset=\"https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-10.png 603w, https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-10-300x154.png 300w, https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/a1-10-150x77.png 150w\" sizes=\"auto, (max-width: 603px) 100vw, 603px\" \/><\/a><\/p>\n<h2>Initial configuration<\/h2>\n<ul>\n<li>No RIP or static routes configured.<\/li>\n<li>Configure each router with the following:<\/li>\n<\/ul>\n<pre>configure terminal\r\nrouter rip\r\nversion 2\r\nno auto-summary\r\nnetwork 10.0.0.0<\/pre>\n<h2><\/h2>\n<h2>Configure Summarization<\/h2>\n<ul>\n<li>Both R2 and R5 are split between 10.0.0.0\/16 and 10.1.0.0\/16 so we can summarize those routes.<\/li>\n<\/ul>\n<pre>R2#configure terminal\r\nR2(config)#int f0\/0\r\nR2(config-if)#ip summary-address rip 10.1.0.0 255.255.0.0\r\nR2(config-if)#int f1\/0\r\nR2(config-if)#ip summary-address rip 10.0.0.0 255.255.0.0\r\n<\/pre>\n<pre>R5#configure terminal\r\nR5(config)#int f3\/0\r\nR5(config-if)#ip summary-address rip 10.1.0.0 255.255.0.0\r\nR5(config-if)#int f2\/0\r\nR52(config-if)#ip summary-address rip 10.0.0.0 255.255.0.0\r\n<\/pre>\n<h2>Inject the default route to all routers<\/h2>\n<pre>R4#configure terminal\r\nR4(config)#router rip\r\nR4(config-router)#ip route 0.0.0.0 0.0.0.0 203.0.113.2\r\nR4(config)#default-information originate<\/pre>\n<h2>Advertise the Internet Gateway IP and disable RIP advertisement on R4-F3\/0<\/h2>\n<pre>R4#configure terminal\r\nR4(config)#router rip\r\nR4(config-router)#network 203.0.113.2\r\nR4(config-router)#passive-interface f3\/0<\/pre>\n<p>&nbsp;<\/p>\n<h1>You are here!<\/h1>\n<h1>RIP Configuration &#8211; Lab<\/h1>\n<p><a href=\"https:\/\/www.udemy.com\/cisco-icnd1\/learn\/lecture\/8631720#content\" target=\"_blank\" rel=\"noopener\">https:\/\/www.udemy.com\/cisco-icnd1\/learn\/lecture\/8631720#content<\/a><\/p>\n<p><a href=\"http:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/19-RIP.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2233\" src=\"http:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/19-RIP.png\" alt=\"\" width=\"949\" height=\"508\" srcset=\"https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/19-RIP.png 949w, https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/19-RIP-300x161.png 300w, https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/19-RIP-768x411.png 768w, https:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/19-RIP-150x80.png 150w\" sizes=\"auto, (max-width: 949px) 100vw, 949px\" \/><\/a><\/p>\n<p><a href=\"http:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/19-1-RIP-Configuration-Lab-Exercise.pdf\">19-1 RIP Configuration Lab Exercise<\/a><\/p>\n<p><a href=\"http:\/\/wiki.thomasandsofia.com\/wp-content\/uploads\/2019\/07\/19-1-RIP-Configuration-Answer-Key.pdf\">19-1 RIP Configuration Answer Key<\/a><\/p>\n<p><strong>1. Enable RIPv2 on every router. Ensure all networks except 203.0.113.0\/24<\/strong><br \/>\n<strong>are advertised. Do not perform any summarization.<\/strong><\/p>\n<pre>configure terminal\r\nrouter rip\r\nversion 2\r\nno auto-summary\r\nnetwork 10.0.0.0\r\n<\/pre>\n<p>&nbsp;<\/p>\n<p><strong>2. Verify all networks are in the router\u2019s routing tables.<\/strong><\/p>\n<pre>R5#show ip route\r\nGateway of last resort is not set\r\n10.0.0.0\/8 is variably subnetted, 10 subnets, 2 masks\r\nR 10.0.0.0\/24 [120\/1] via 10.0.3.1, 00:00:02, FastEthernet3\/0\r\nR 10.0.1.0\/24 [120\/1] via 10.0.3.1, 00:00:02, FastEthernet3\/0\r\nR 10.0.2.0\/24 [120\/1] via 10.0.3.1, 00:00:02, FastEthernet3\/0\r\nC 10.0.3.0\/24 is directly connected, FastEthernet3\/0\r\nL 10.0.3.2\/32 is directly connected, FastEthernet3\/0\r\nR 10.1.0.0\/24 [120\/2] via 10.1.3.1, 00:00:00, FastEthernet2\/0\r\n              [120\/2] via 10.0.3.1, 00:00:02, FastEthernet3\/0\r\nR 10.1.1.0\/24 [120\/1] via 10.1.3.1, 00:00:00, FastEthernet2\/0\r\nR 10.1.2.0\/24 [120\/1] via 10.1.3.1, 00:00:00, FastEthernet2\/0\r\nC 10.1.3.0\/24 is directly connected, FastEthernet2\/0<\/pre>\n<p>&nbsp;<\/p>\n<p><strong>3. Enable summarization using a \/16 mask on the routers which are at the<\/strong><br \/>\n<strong>boundary of the 10.0.0.0\/16 and 10.1.0.0\/16 networks.<\/strong><\/p>\n<pre>R5#conf t\r\nEnter configuration commands, one per line.  End with CNTL\/Z.\r\nR5(config)#int f2\/0\r\nR5(config-if)#ip summary-address rip 10.0.0.0 255.255.0.0\r\nR5(config-if)#int f3\/0\r\nR5(config-if)#ip summary-address rip 10.1.0.0 255.255.0.0<\/pre>\n<pre>R2#conf t\r\nEnter configuration commands, one per line.  End with CNTL\/Z.\r\nR2(config)#int f0\/0\r\nR2(config-if)#ip summary-address rip 10.1.0.0 255.255.0.0\r\nR2(config-if)#int f1\/0\r\nR2(config-if)#ip summary-address rip 10.0.0.0 255.255.0.0<\/pre>\n<p>&nbsp;<\/p>\n<p><strong>4. What change do you expect to see on R1\u2019s routing table? Verify this (give<\/strong><br \/>\n<strong>the routing table a couple of minutes to converge).<\/strong><\/p>\n<ul>\n<li>R1 will show balanced routes only to 10.1.0.0<\/li>\n<li>Individual 10.1.x.0 routes will be removed.<\/li>\n<\/ul>\n<pre>R1#show ip route\r\nGateway of last resort is not set\r\n\r\n10.0.0.0\/8 is variably subnetted, 9 subnets, 3 masks\r\nC 10.0.0.0\/24 is directly connected, FastEthernet0\/0\r\nL 10.0.0.1\/32 is directly connected, FastEthernet0\/0\r\nC 10.0.1.0\/24 is directly connected, FastEthernet1\/0\r\nL 10.0.1.1\/32 is directly connected, FastEthernet1\/0\r\nC 10.0.2.0\/24 is directly connected, FastEthernet2\/0\r\nL 10.0.2.1\/32 is directly connected, FastEthernet2\/0\r\nC 10.0.3.0\/24 is directly connected, FastEthernet3\/0\r\nL 10.0.3.1\/32 is directly connected, FastEthernet3\/0\r\n<strong>R 10.1.0.0\/16 [120\/1] via 10.0.3.2, 00:00:06, FastEthernet3\/0<\/strong>\r\n<strong>              [120\/1] via 10.0.0.2, 00:00:01, FastEthernet0\/0<\/strong><\/pre>\n<p>&nbsp;<\/p>\n<p><strong>5. Will R4\u2019s routes to the 10.0.x.x networks mirror R1\u2019s routes to the 10.1.x.x<\/strong><br \/>\n<strong>networks? Verify this.<\/strong><\/p>\n<ul>\n<li>No. There is an administrative distance (hop count) of 2 to get to 10.0.0.0 via R4 F0\/0, so the traffic will only route through F2\/0.<\/li>\n<\/ul>\n<pre>R4# show ip route\r\n\r\nGateway of last resort is not set\r\n\r\n10.0.0.0\/8 is variably subnetted, 8 subnets, 3 masks\r\n<strong>R 10.0.0.0\/16 [120\/1] via 10.1.3.2, 00:00:04, FastEthernet2\/0<\/strong>\r\nR 10.1.0.0\/24 [120\/1] via 10.1.1.2, 00:00:05, FastEthernet0\/0\r\nC 10.1.1.0\/24 is directly connected, FastEthernet0\/0\r\nL 10.1.1.1\/32 is directly connected, FastEthernet0\/0\r\nC 10.1.2.0\/24 is directly connected, FastEthernet1\/0\r\nL 10.1.2.1\/32 is directly connected, FastEthernet1\/0\r\nC 10.1.3.0\/24 is directly connected, FastEthernet2\/0\r\nL 10.1.3.1\/32 is directly connected, FastEthernet2\/0\r\n203.0.113.0\/24 is variably subnetted, 2 subnets, 2 masks\r\nC 203.0.113.0\/24 is directly connected, FastEthernet3\/0\r\nL 203.0.113.1\/32 is directly connected, FastEthernet3\/0<\/pre>\n<p>&nbsp;<\/p>\n<p><strong>6. Verify that routing is working by checking that PC1 has connectivity to<\/strong><br \/>\n<strong>PC3.<\/strong><\/p>\n<pre>PC1&gt; ping 10.1.2.10\r\n10.1.2.10 icmp_seq=1 timeout\r\n10.1.2.10 icmp_seq=2 timeout\r\n84 bytes from 10.1.2.10 icmp_seq=3 ttl=61 time=166.632 ms\r\n84 bytes from 10.1.2.10 icmp_seq=4 ttl=61 time=151.071 ms\r\n84 bytes from 10.1.2.10 icmp_seq=5 ttl=61 time=130.323 ms<\/pre>\n<p>&nbsp;<\/p>\n<p><strong>7. Ensure that all routers have a route to the 203.0.113.0\/24 network.<\/strong><br \/>\n<strong>Internal routes must not advertised to the Service Provider at 203.0.113.2.<\/strong><\/p>\n<p>Routers 1, 2, 3, 5<\/p>\n<pre>conf t\r\nrouter rip\r\nnetwork 203.0.113.0<\/pre>\n<p>Router 4<\/p>\n<pre>conf t\r\nrouter rip\r\npassive-interface f3\/0\r\nnetwork 203.0.113.0<\/pre>\n<p>&nbsp;<\/p>\n<p><strong>8. Verify that all routers have a path to the 203.0.113.0\/24 network.<\/strong><\/p>\n<pre>R2#show ip route\r\n\r\nGateway of last resort is not set\r\n\r\n10.0.0.0\/8 is variably subnetted, 10 subnets, 2 masks\r\nC 10.0.0.0\/24 is directly connected, FastEthernet0\/0\r\nL 10.0.0.2\/32 is directly connected, FastEthernet0\/0\r\nR 10.0.1.0\/24 [120\/1] via 10.0.0.1, 00:00:05, FastEthernet0\/0\r\nR 10.0.2.0\/24 [120\/1] via 10.0.0.1, 00:00:05, FastEthernet0\/0\r\nR 10.0.3.0\/24 [120\/1] via 10.0.0.1, 00:00:05, FastEthernet0\/0\r\nC 10.1.0.0\/24 is directly connected, FastEthernet1\/0\r\nL 10.1.0.2\/32 is directly connected, FastEthernet1\/0\r\nR 10.1.1.0\/24 [120\/1] via 10.1.0.1, 00:00:07, FastEthernet1\/0\r\nR 10.1.2.0\/24 [120\/2] via 10.1.0.1, 00:00:07, FastEthernet1\/0\r\nR 10.1.3.0\/24 [120\/2] via 10.1.0.1, 00:00:07, FastEthernet1\/0\r\nR 203.0.113.0\/24 [120\/2] via 10.1.0.1, 00:00:07, FastEthernet1\/0\r\n\r\nR2#ping 203.0.113.1\r\nType escape sequence to abort.\r\nSending 5, 100-byte ICMP Echos to 203.0.113.1, timeout is 2 seconds:\r\n!!!!!\r\nSuccess rate is 100 percent (5\/5), round-trip min\/avg\/max = 64\/79\/92 ms<\/pre>\n<p>&nbsp;<\/p>\n<p><strong>9. Configure a default static route on R4 to the Internet via the service<\/strong><br \/>\n<strong>provider at 203.0.113.2<\/strong><\/p>\n<pre>R4#conf t\r\nEnter configuration commands, one per line. End with CNTL\/Z.\r\nR4(config)#ip route 0.0.0.0 0.0.0.0 203.0.113.2\r\nR4(config)#router rip\r\nR4(config-router)#default-information originate<\/pre>\n<p>&nbsp;<\/p>\n<p><strong>10. Ensure that all other routers learn via RIP how to reach the Internet.<\/strong><\/p>\n<pre>R2#show ip route\r\n\r\nGateway of last resort is 10.1.0.1 to network 0.0.0.0\r\n\r\nR* 0.0.0.0\/0 [120\/2] via 10.1.0.1, 00:00:04, FastEthernet1\/0\r\n10.0.0.0\/8 is variably subnetted, 10 subnets, 2 masks\r\nC 10.0.0.0\/24 is directly connected, FastEthernet0\/0\r\nL 10.0.0.2\/32 is directly connected, FastEthernet0\/0\r\nR 10.0.1.0\/24 [120\/1] via 10.0.0.1, 00:00:05, FastEthernet0\/0\r\nR 10.0.2.0\/24 [120\/1] via 10.0.0.1, 00:00:05, FastEthernet0\/0\r\nR 10.0.3.0\/24 [120\/1] via 10.0.0.1, 00:00:05, FastEthernet0\/0\r\nC 10.1.0.0\/24 is directly connected, FastEthernet1\/0\r\nL 10.1.0.2\/32 is directly connected, FastEthernet1\/0\r\nR 10.1.1.0\/24 [120\/1] via 10.1.0.1, 00:00:04, FastEthernet1\/0\r\nR 10.1.2.0\/24 [120\/2] via 10.1.0.1, 00:00:04, FastEthernet1\/0\r\nR 10.1.3.0\/24 [120\/2] via 10.1.0.1, 00:00:04, FastEthernet1\/0\r\nR 203.0.113.0\/24 [120\/2] via 10.1.0.1, 00:00:04, FastEthernet1\/0<\/pre>\n<p>&nbsp;<\/p>\n<p><strong>11. Verify all routers have a route to the Internet.<\/strong><\/p>\n<pre>R2#traceroute 1.1.1.1\r\nType escape sequence to abort.\r\nTracing the route to 1.1.1.1\r\nVRF info: (vrf in name\/id, vrf out name\/id)\r\n1 10.1.0.1 16 msec 24 msec 32 msec\r\n2 10.1.1.1 88 msec 72 msec 52 msec\r\n3 * * *<\/pre>\n<p>&nbsp;<\/p>\n<p><strong>12. Set the RIP timers to half their current settings on all routers.<\/strong><\/p>\n<p>Routers 1, 2, 3, 4 and 5<\/p>\n<pre>conf t\r\nrouter rip\r\ntimers basic 15 90 90 120<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>&lt; Section 18 | Home | Section 20 &gt; 59% Complete RIP Commands Review Initial Configuration Enable RIP (config)# router rip Set RIP Version (config-router)# version 2 Disable auto-summary mask (automatically sets the classful subnet mask) (config-router)# no auto-summary Instead, it is best to manually summerise This is set on the interface that advertises the ..<\/p>\n<div class=\"clear-fix\"><\/div>\n<p><a href=\"https:\/\/wiki.thomasandsofia.com\/?p=2222\" title=\"read more...\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45],"tags":[],"class_list":["post-2222","post","type-post","status-publish","format-standard","hentry","category-icnd1-ccent"],"_links":{"self":[{"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=\/wp\/v2\/posts\/2222","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2222"}],"version-history":[{"count":17,"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=\/wp\/v2\/posts\/2222\/revisions"}],"predecessor-version":[{"id":3050,"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=\/wp\/v2\/posts\/2222\/revisions\/3050"}],"wp:attachment":[{"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2222"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2222"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2222"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}