# 5RIP unicast without using Neighbor - NAT

hostname r2

interface Loopback0
ip address 20.1.1.1 255.255.255.0
!
interface Ethernet0/0
ip address 12.1.1.2 255.255.255.0
ip nat outside
!
router rip
version 2
passive-interface Loopback0
network 12.0.0.0
network 20.0.0.0
!
ip nat outside source static udp 12.1.1.1 520 224.0.0.0 520 extendable

r2#sh ip route

20.0.0.0/24 is subnetted, 1 subnets
C 20.1.1.0 is directly connected, Loopback0
R 10.0.0.0/8 [120/1] via 12.1.1.1, 00:00:16, Ethernet0/0
12.0.0.0/24 is subnetted, 1 subnets
C 12.1.1.0 is directly connected, Ethernet0/0

r2#sh ip nat trans
Pro Inside global Inside local Outside local Outside global
udp --- --- 224.0.0.0:520 12.1.1.1:520
r2#
r2#deb ip nat
IP NAT debugging is on
r2#deb ip rip
RIP protocol debugging is on
r2#
*Mar 1 02:41:50.797: RIP: received v2 update from 12.1.1.1 on Ethernet0/0
*Mar 1 02:41:50.797: 10.0.0.0/8 via 0.0.0.0 in 1 hops
*Mar 1 02:42:04.392: RIP: sending v2 update to 224.0.0.9 via Ethernet0/0 (12.1.1.2)
*Mar 1 02:42:04.392: RIP: build update entries
*Mar 1 02:42:04.392: 20.0.0.0/8 via 0.0.0.0, metric 1, tag 0
r2#
*Mar 1 02:42:20.173: RIP: received v2 update from 12.1.1.1 on Ethernet0/0
*Mar 1 02:42:20.177: 10.0.0.0/8 via 0.0.0.0 in 1 hops

==================================================================

!
hostname r1

interface Loopback0
ip address 10.1.1.1 255.255.255.0
!
interface Ethernet0/0
ip address 12.1.1.1 255.255.255.0
!
router rip
version 2
passive-interface Loopback0
network 10.0.0.0
network 12.0.0.0

r1#deb ip rip
RIP protocol debugging is on
r1#deb ip pac
IP packet debugging is on
r1#
*Mar 1 15:33:04.893: RIP: sending v2 update to 224.0.0.9 via Ethernet0/0 (12.1.1.1)
*Mar 1 15:33:04.893: RIP: build update entries
*Mar 1 15:33:04.893: 10.0.0.0/8 via 0.0.0.0, metric 1, tag 0
*Mar 1 15:33:04.893: IP: s=12.1.1.1 (local), d=224.0.0.9 (Ethernet0/0), len 52, sending broad/multicast
*Mar 1 15:33:13.936: IP: s=12.1.1.2 (Ethernet0/0), d=224.0.0.9, len 52, rcvd 2
*Mar 1 15:33:13.936: RIP: received v2 update from 12.1.1.2 on Ethernet0/0
*Mar 1 15:33:13.936: 20.0.0.0/8 via 0.0.0.0 in 1 hops
r1#
*Mar 1 15:33:33.043: RIP: sending v2 update to 224.0.0.9 via Ethernet0/0 (12.1.1.1)
*Mar 1 15:33:33.043: RIP: build update entries
*Mar 1 15:33:33.043: 10.0.0.0/8 via 0.0.0.0, metric 1, tag 0
*Mar 1 15:33:33.043: IP: s=12.1.1.1 (local), d=224.0.0.9 (Ethernet0/0), len 52, sending broad/multicast
*Mar 1 15:33:40.692: IP: s=12.1.1.2 (Ethernet0/0), d=224.0.0.9, len 52, rcvd 2
*Mar 1 15:33:40.692: RIP: received v2 update from 12.1.1.2 on Ethernet0/0
*Mar 1 15:33:40.696: 20.0.0.0/8 via 0.0.0.0 in 1 hops
r1#
r1#
r1#sh ip route

R 20.0.0.0/8 [120/1] via 12.1.1.2, 00:00:20, Ethernet0/0
10.0.0.0/24 is subnetted, 1 subnets
C 10.1.1.0 is directly connected, Loopback0
12.0.0.0/24 is subnetted, 1 subnets
C 12.1.1.0 is directly connected, Ethernet0/0