Which RIP version are you using? IIRC, version 1 doesn't support VLSM since
it doesn't carry subnet mask info in its routing updates.
---JRE---
"Mohamed Heeba" <[EMAIL PROTECTED]> wrote in message
91B200CBBEC3D111992A00805F31E6CB880765@MINAMAIL">news:91B200CBBEC3D111992A00805F31E6CB880765@MINAMAIL...
> guys !
> i have two routers connected through their serial , im configuring rip on
> them
>
> R1 e0 ip add is 172.16.1.1/27
> ser 0 ip add is 172.16.1.33/28
>
> R2 e0 ip add is 172.16.1.49/29
> ser 0 ip add is 172.16.1.34/28
>
> there is no rip updates between the two routers ..im getting only
> "suppressing null updates "
>
> also when i change the mask of ser0 on R1 to /27 , the updates pass
normally
> and take the mask of the
> /28 on the other end
>
> my question is
> Does this mean that if the mask is inconsistent on RIP router , it will
not
> send updates ?????
> this means when R1 mask is consistent (/27) for both interfaces , the R1
> will send updates but it will not receive anything because R2 masks are
not
> consistent ??
>
>
> somebody to confirm please !!!!!
>
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