====== Lab 00600 iBGP 2 Routers, IOS-XE ====== {{ :cisco:labs:00600.jpg?700 |}} - Complete [[cisco:labs:00000|Lab 00000 Initial Config 2 Routers, IOS-XE]]\\ ===== Router 1 ===== en conf t router bgp 64512 bgp log-neighbor-changes network 1.1.1.1 mask 255.255.255.255 network 12.0.0.1 mask 255.255.255.255 neighbor 12.0.0.2 remote-as 64512 ===== Router 2 ===== en conf t router bgp 64512 bgp log-neighbor-changes network 2.2.2.2 mask 255.255.255.255 network 12.0.0.2 mask 255.255.255.255 neighbor 12.0.0.1 remote-as 64512 ===== Verification ===== r1#ping 2.2.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/3 ms r1#show ip route | b Gate Gateway of last resort is not set 1.0.0.0/32 is subnetted, 1 subnets C 1.1.1.1 is directly connected, Loopback0 2.0.0.0/32 is subnetted, 1 subnets B 2.2.2.2 [200/0] via 12.0.0.2, 00:04:10 12.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 12.0.0.0/24 is directly connected, GigabitEthernet1 L 12.0.0.1/32 is directly connected, GigabitEthernet1 r1#show ip bgp neighbors | i BGP neighbor|ID|BGP state BGP neighbor is 12.0.0.2, remote AS 64512, internal link BGP version 4, remote router ID 2.2.2.2 BGP state = Established, up for 00:07:54 r1#show ip bgp summary BGP router identifier 1.1.1.1, local AS number 64512 BGP table version is 3, main routing table version 3 2 network entries using 496 bytes of memory 2 path entries using 272 bytes of memory 2/2 BGP path/bestpath attribute entries using 576 bytes of memory 0 BGP route-map cache entries using 0 bytes of memory 0 BGP filter-list cache entries using 0 bytes of memory BGP using 1344 total bytes of memory BGP activity 2/0 prefixes, 2/0 paths, scan interval 60 secs 2 networks peaked at 22:41:19 Dec 26 2025 UTC (00:09:07.981 ago) Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 12.0.0.2 4 64512 15 14 3 0 0 00:09:07 1 r2#ping 1.1.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/3 ms r2#show ip route | b Gate Gateway of last resort is not set 1.0.0.0/32 is subnetted, 1 subnets B 1.1.1.1 [200/0] via 12.0.0.1, 00:10:51 2.0.0.0/32 is subnetted, 1 subnets C 2.2.2.2 is directly connected, Loopback0 12.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 12.0.0.0/24 is directly connected, GigabitEthernet1 L 12.0.0.2/32 is directly connected, GigabitEthernet1 r2#show ip bgp neighbors | i BGP neighbor|ID|BGP state BGP neighbor is 12.0.0.1, remote AS 64512, internal link BGP version 4, remote router ID 1.1.1.1 BGP state = Established, up for 00:08:32 r2#show ip bgp summary BGP router identifier 2.2.2.2, local AS number 64512 BGP table version is 3, main routing table version 3 2 network entries using 496 bytes of memory 2 path entries using 272 bytes of memory 2/2 BGP path/bestpath attribute entries using 576 bytes of memory 0 BGP route-map cache entries using 0 bytes of memory 0 BGP filter-list cache entries using 0 bytes of memory BGP using 1344 total bytes of memory BGP activity 2/0 prefixes, 2/0 paths, scan interval 60 secs 2 networks peaked at 22:41:19 Dec 26 2025 UTC (00:11:54.065 ago) Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 12.0.0.1 4 64512 18 18 3 0 0 00:11:53 1 ===== TCL Script ===== r1#tclsh r1(tcl)#foreach ipaddr { +>(tcl)#12.0.0.2 +>(tcl)#2.2.2.2 +>(tcl)#} { ping $ipaddr } Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 12.0.0.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms r1(tcl)#tclquit r2#tclsh r2(tcl)#foreach ipaddr { +>(tcl)#12.0.0.1 +>(tcl)#1.1.1.1 +>(tcl)#} { ping $ipaddr } Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 12.0.0.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/2 ms Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms r2(tcl)#tclquit