[rancid] Frequent unknown changes against Quagga

[Steve Bertrand]

Hi everyone,

I've got an annoying issue using RANCID against Quagga. I poll every
half-hour, and each day, there are two or three updates that randomly
appear like this:

diff -u -4 -r1.105 hostname
@@ -61,8 +61,10 @@
   ip address 208.70.x.x/30
   ipv6 nd suppress-ra
   ipv6 ospf6 cost 1
   ipv6 ospf6 dead-interval 40
+ exit
+ exit
   ipv6 ospf6 hello-interval 10
   ipv6 ospf6 instance-id 0
   ipv6 ospf6 priority 1
   ipv6 ospf6 retransmit-interval 5

...on the next poll, the 'exit' lines are removed. It is inconsistent
where in the config these exit entries appear. Nobody has logged into
the router in question.

My .clogin rc looks like such:

add method hostname ssh
add autoenable hostname 1
add user hostname rancid
add password hostname blah

...and the router.db

hostname:zebra:up

The SSH user is bound directly to vtysh as its shell.

Is there anyone who might be able to give me some clue as to why these
config changes happen?

Cheers,

Steve