rip issue

[Amit23]

   Dear All,

I was going to testing some rip updates and i teseted RIP with no auto-summary and also with ip summary address under router serial interface...

i have three routers connected with each other and all are uisng rip version2.

what difference will come if use these commands?

no auto-summary

int ser0/0

ip summary address rip xxxxx

i didn't any difference in ip route after and before...please help eif i am wrong in this...

second point is that i am haivng 2 router with rip verison2 and 1 router with rip version1.

If i will not apply send/receive rip version1 on the connetcing rip version 2 running router, can i ping each other or not?

i tested and i wa sapble to ping all ip addresses then what is use of those commands/

int ser0/0

ip rip send ver 1

ip rip receiver ver 1

Amit Sharma      

[cadet alain]

Hi,

auto-summary is done on a major network boundary and will summarize to classful network, manual summarization is done on a per interface basis and you can use any summary mask except supernets.

pinging your routers if they are directly connected will use directly connected entries in the routing table.

You should tell us how exactly they are linked.

Concerning version mismatch:

a rip v2 router will not receive v1 updates and will send v2 updates to multicast address.

the rip version 1 router will send to 255.255.255.255 version 1 updates which will not get accepted by version 2 router

So if you want to advertise prefixes between ripv2 and ripv1 routers you'll need to use the interface commands.

Regards.

Alain

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