From: Hunt Lee (ciscoforme3@xxxxxxxxxxxx)
Date: Sat Aug 10 2002 - 22:30:36 GMT-3
Hello Jayakumar,
I just tried it out... and you're right. I also tried to substituted
RIPv2 with EIGRP, and same thing applies ;-) It seems that the
Split-horizon has stopped the learned OSPF routes to go back to RTC.
So no need for distribute-list at RTC.
Thanks.
Regards,
Hunt
--- KS Jayakumar <KS.Jayakumar@cwgoindia.com> wrote: > Hi all,
>
> On a different note, is the "distribute-list 1" required under
> router rip.
>
> My understanding is that RTC will not allow any OSPF route it
> advertised to RTD to come back to RTC because of split horizon,
> secondly even of it comes back it will not be in the routing table
> since the AD of RIP is higher than OSPF. Is this correct or am I
> missing some thing here?
>
> Regards,
>
> Jayakumar
>
>
> -----Original Message-----
> From: Hunt Lee [mailto:ciscoforme3@yahoo.com.au]
> Sent: Monday, August 05, 2002 9:09 PM
> To: ccielab@groupstudy.com
> Subject: Passive-interface problem
>
>
> Hey all,
>
> I'm trying to work out what does "passive-interface <Serial0>"
> do...
>
> RTA -- RTB -- RTC -- RTD - 156.26.32.0/24 & 156.26.33.0/24
>
>
> Both RTA, B & C are using OSPF.
> RTC also uses RIP v2, so it's an ASBR.
> And RTD uses RIPv2.
>
> RTC's Serial 0 interface is connecting to RTB &
> RTC's Serial 1 interface is connecting to RTD
>
> RTD advertise the 2 networks 156.26.32.0/24 & 156.26.33.0/24 with
> RIPv2.
>
> RTC is doing mutual redistribution, where the RIPv2 is being
> redistributed into OSPF, and OSPF is being redistributed back into
> RIP.
>
> And there is a distribute-list at RTC to stop RTD to advertise any
> OSPF learned routes back into OSPF.
>
> router rip
> version 2
> redistribute ospf 3 metric 5
> network 10.0.0.0
> distribute-list 1 in Serial1
> no auto-summary
> !
> access-list 1 permit 156.26.32.0 0.0.1.255
>
> But I couldn't find the use of the "passive-interface" command.
>
> RouterC(config)#router rip
> RouterC(config-router)#passive-interface serial 0
>
> It just doesn't seems to do anything. With it or without it, my
> OSPF
> routers (RTA & RTB) can get the RIP routes and able to reach
> 156.26.32.0 & 33.0 network.
>
> Any ideas are welcome.
>
> H.
>
> http://digital.yahoo.com.au - Yahoo! Digital How To
> - Get the best out of your PC!
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