Adam I didn't even think about "redistributed connected" with route maps in my
last post but that's another excellent way to advertise without using network
statements. :)
Steve
From: [email protected]
[mailto:[email protected]] On Behalf Of Adam Booth
Sent: Thursday, April 15, 2010 9:54 PM
To: piyush dwivedi
Cc: [email protected]
Subject: Re: [OSL | CCIE_RS] RIP(validate source update)
Hi Piyush,
"no validate source update" is applied to a RIP reciever and is used to accept
routes from a RIP neighbor that is not in your interfaces subnet. Other RIP
neighbors do not necessarily require it. The most typical application I know
of is running RIP on a PPP interface that learns its IP address through IPCP
(it installs it's IP address as a host route, ignoring the network mask of the
peer) In order for it to accept the routes, it needs the no validate source
update since the host route has a prefix length of 32 and the other end of the
PPP link will not appear to be in that network.
1) No validate update source wont work there (I described the main use above)
but one possibility is to redistribute connected and put in a routemap that
matches your loopbacks address if neccesary (assuming you are trying to not use
network statements)
2) I'm not sure about this and will leave it to others to answer but I'm pretty
sure it occurs when you have RIP running on a loopback interface, the router
doesn't need to listen to its own updates.
Cheers,
Adam
On Fri, Apr 16, 2010 at 2:25 PM, piyush dwivedi
<[email protected]<mailto:[email protected]>> wrote:
Hi All,
I have 2 questions on RIP,
1) When i enable no validate source update on the router is it necessary to
enable it on the other end for e.g if two router R1 and R2 are peering and
running RIPv2, R1 has 10 loopbacks configured, can i get them propagted to R2
without including the network statement on R1. Can i do it by enabling no
validate source update?/????
2) When we debug ip rip events and we see suppressing null update , what does
that mean and what is the significance?
Hoping to hear from you.
Regards
Piyush Dwivedi
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