Hi guys, We configured rip on windows server2008. And we would like a loopback adapter IP in /32 to be announced. The server is learning its ldefault gateway from the router. But for some reason the loopback route existes, but the rip only announces its ethernet host and subnet. Do you see any reason for this ? =========================================================================== Itinéraires actifs : Destination réseau Masque réseau Adr. passerelle Adr. interface Métrique 0.0.0.0 0.0.0.0 172.24.253.129 172.24.253.130 12 xx.xxx.xxx.xxx 255.255.255.255 On-link xx.xxx.xxx.xxx 286 127.0.0.0 255.0.0.0 On-link 127.0.0.1 306 127.0.0.1 255.255.255.255 On-link 127.0.0.1 306 127.255.255.255 255.255.255.255 On-link 127.0.0.1 306 172.24.253.128 255.255.255.224 On-link 172.24.253.130 266 172.24.253.130 255.255.255.255 On-link 172.24.253.130 266 172.24.253.159 255.255.255.255 On-link 172.24.253.130 266 172.24.254.128 255.255.255.224 On-link 172.24.254.130 266 172.24.254.130 255.255.255.255 On-link 172.24.254.130 266 172.24.254.159 255.255.255.255 On-link 172.24.254.130 266 224.0.0.0 240.0.0.0 On-link 127.0.0.1 306 224.0.0.0 240.0.0.0 On-link xx.xxx.xxx.xxx 286 224.0.0.0 240.0.0.0 On-link 172.24.253.130 266 224.0.0.0 240.0.0.0 On-link 172.24.254.130 266 255.255.255.255 255.255.255.255 On-link 127.0.0.1 306 255.255.255.255 255.255.255.255 On-link xx.xxx.xxx.xxx 286 255.255.255.255 255.255.255.255 On-link 172.24.253.130 266 255.255.255.255 255.255.255.255 On-link 172.24.254.130 266 =========================================================================== xx.xxx.xxx.xxx replaces my public IP address here is a dump of my announces : 14:43:37.340464 IP (tos 0x0, ttl 128, id 5814, offset 0, flags [none], proto UDP (17), length 112) 172.24.253.130.520 > 172.24.253.159.520: [udp sum ok] RIPv2, Response, length: 84, routes: 4 AFI IPv4, 172.24.253.159/32, tag 0x0000, metric: 2, next-hop: self AFI IPv4, 172.24.254.128/27, tag 0x0000, metric: 2, next-hop: self AFI IPv4, 172.24.254.130/32, tag 0x0000, metric: 2, next-hop: self AFI IPv4, 172.24.254.159/32, tag 0x0000, metric: 2, next-hop: self 0x0000: 0202 0000 0002 0000 ac18 fd9f ffff ffff 0x0010: 0000 0000 0000 0002 0002 0000 ac18 fe80 0x0020: ffff ffe0 0000 0000 0000 0002 0002 0000 0x0030: ac18 fe82 ffff ffff 0000 0000 0000 0002 0x0040: 0002 0000 ac18 fe9f ffff ffff 0000 0000 0x0050: 0000 0002 No public IP ;( Thanks for your help. byebye PS : I can't add my loopback interface to the Rip configuration I can't see my loopback in the network interface list in the server manager !

I found the solution. The fact is that the router part of the windows is ignoring any loopback interface created after the router service configuration. This can probably be considered as a bug. The way to make it work is to create the loopbacks before configuring the routing and remote access service. Hope it will help some of you trying to create redundant network configuration. Regards. /Fred