Without knowing why you originally chose to run both RIP and IGRP, I can't
tell you exactly what the trade-offs might be. Unless you have some other
non-Cisco devices (like Unix boxes) that need to listen to RIP updates, why
not turn off both RIP and IGRP and then only run EIGRP? You wouldn't have
to worry about those redistribution issues if you were running a single
routing protocol.
HTH,
John
> Thanks John! It starts to make sense to me know! Is it possible to take
> out RIP and just run EIGRP without "passive-interface" and
"redistribute"?
> If so what's the trade off? Again Thanks for the help!
>
>
>
> "John Neiberger" <[EMAIL PROTECTED]> wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > If I understand your topology, the problem is that you are running RIP
and
> > IGRP with a discontiguous classfull network. Let me rephrase that.
<g>
> >
> > It appears that your network looks like this:
> >
> > A 10.1.0.0 --------- 192.168.10.0 ---------- B 10.2.0.0
> >
> > RIP and IGRP cannot pass subnet mask information in their routing
updates.
> > This means that router A above thinks that the entire 10.0.0.0
> network --not
> > just 10.1.0.0/16-- resides to its left. Router B think the entire
> > 10.0.0.0/16 network resides to its right. These routers will get very
> > confused and will behave in the manner that you're seeing.
> >
> > To correct this behavior you must run a classless routing protocol that
> > includes subnet mask information in its updates, so your options are
> eigrp,
> > ospf, and is-is. This will solve your problem.
> >
> > I hope that makes sense. I just woke up and I'm still pretty groggy!
> >
> > Regards,
> > John
> >
> > > Hi All - In my network enviroment, I have LANs with 10.x.0.0/16
> networks
> > and
> > > WAN with 192.168.10.0/24. I use RIP for LAN and IGRP for WAN. On
RIP,
> I
> > > redistribute IGRP, and vice versa, on IGRP I redistribute RIP.
> However,
> > I
> > > cannot ping from one LAN to the other LAN. If I put a static route
to
> > > specify the next hop, then I can ping the other LAN. Is there a way
to
> > have
> > > the network learn all the LAN dynamically, instead of static route?
I
> am
> > > running IOS ver 11.3 on both routers. Here is my configuration:
> > >
> > >
-----------------------------------------------------------------------
> > > Router1#
> > > !
> > > interface Ethernet0/0
> > > ip address 10.1.100.100 255.255.0.0
> > > !
> > > !
> > > interface Serial0/0
> > > ip address 192.168.10.1 255.255.255.0
> > > encapsulation frame-relay
> > > keepalive 5
> > > !
> > > !
> > > router rip
> > > redistribute igrp 200
> > > passive-interface Serial0/0
> > > passive-interface Serial0/1
> > > network 10.0.0.0
> > > !
> > > router igrp 200
> > > redistribute rip
> > > passive-interface Ethernet0/0
> > > network 192.168.10.0
> > > no default-information in
> > > no default-information out
> > > !
> > > ......
> > > !
> > > Router1#
> > >
> > >
> >
--------------------------------------------------------------------------
> --
> > > ------
> > >
> > > Router2#
> > > !
> > > interface Ethernet0/0
> > > ip address 10.2.100.100 255.255.0.0
> > > !
> > > !
> > > interface Serial0/0
> > > ip address 192.168.10.2 255.255.255.0
> > > encapsulation frame-relay
> > > keepalive 5
> > > !
> > > !
> > > router rip
> > > redistribute igrp 200
> > > passive-interface Serial0/0
> > > passive-interface Serial0/1
> > > network 10.0.0.0
> > > !
> > > router igrp 200
> > > redistribute rip
> > > passive-interface Ethernet0/0
> > > network 192.168.10.0
> > > no default-information in
> > > no default-information out
> > > !
> > > ......
> > > !
> > > Router2#
> > >
> >
--------------------------------------------------------------------------
> --
> > > --
> > >
> > > Thanks All in advance!
> > >
> > >
> > >
> > >
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