RIP - No Multicast Without Passive

From: gladston@br.ibm.com
Date: Wed Apr 27 2005 - 13:01:05 GMT-3

Have you seen this behavior?

It was not necessary passive interface to avoid broadcast. Version is 12.2T.

I always used neighbor and passive interface under RIP, and if may memory is not kiding me, once I do not used passive and RIP multicast updates, besides unicast it. (version was 12.2)

BB2#deb ip rip
RIP protocol debugging is on
BB2#deb ip pa
IP packet debugging is on
BB2#clear ip ro *
BB2#
*Mar 1 02:24:07.275: RIP: sending v2 flash update to 150.100.20.1 via Ethernet0/0.312 (150.100.20.254)
*Mar 1 02:24:07.275: RIP: build flash update entries
*Mar 1 02:24:07.275: 150.100.1.0/26 via 0.0.0.0, metric 1, tag 0
*Mar 1 02:24:07.275: 150.100.2.0/26 via 0.0.0.0, metric 1, tag 0
*Mar 1 02:24:07.275: 150.100.3.0/26 via 0.0.0.0, metric 1, tag 0
*Mar 1 02:24:07.279: 150.100.4.0/26 via 0.0.0.0, metric 1, tag 0
*Mar 1 02:24:07.279: 150.100.5.0/26 via 0.0.0.0, metric 1, tag 0
*Mar 1 02:24:07.279: 150.100.6.0/26 via 0.0.0.0, metric 1, tag 0
*Mar 1 02:24:07.279: 150.100.7.0/26 via 0.0.0.0, metric 1, tag 0
BB2#
*Mar 1 02:24:07.279: 150.100.8.0/26 via 0.0.0.0, metric 1, tag 0
*Mar 1 02:24:07.283: IP: s=150.100.20.254 (local), d=150.100.20.1 (Ethernet0/0.312), len 192, sending
BB2#
*Mar 1 02:24:13.914: RIP: sending v2 update to 150.100.20.1 via Ethernet0/0.312 (150.100.20.254)
*Mar 1 02:24:13.914: RIP: build update entries
*Mar 1 02:24:13.914: 150.100.1.0/26 via 0.0.0.0, metric 1, tag 0
*Mar 1 02:24:13.914: 150.100.2.0/26 via 0.0.0.0, metric 1, tag 0
*Mar 1 02:24:13.914: 150.100.3.0/26 via 0.0.0.0, metric 1, tag 0
*Mar 1 02:24:13.918: 150.100.4.0/26 via 0.0.0.0, metric 1, tag 0
*Mar 1 02:24:13.918: 150.100.5.0/26 via 0.0.0.0, metric 1, tag 0
*Mar 1 02:24:13.918: 150.100.6.0/26 via 0.0.0.0, metric 1, tag 0
*Mar 1 02:24:13.918: 150.100.7.0/26 via 0.0.0.0, metric 1, tag 0
*Mar 1 02:24:13.918: 150.100.8.0/26 via 0.0.0.0, metric 1, tag 0
BB2#
*Mar 1 02:24:13.922: IP: s=150.100.20.254 (local), d=150.100.20.1 (Ethernet0/0.312), len 192, sending
BB2#no deb all
All possible debugging has been turned off
BB2#sh run | b router rip
router rip
 version 2
 passive-interface default
 no passive-interface Ethernet0/0
 network 150.100.0.0
 neighbor 150.100.20.1
 no auto-summary

This archive was generated by hypermail 2.1.4 : Tue May 03 2005 - 07:55:09 GMT-3