Re: eigrp neighbor - secondary ip address

From: Niche (jackyliu419@gmail.com)
Date: Wed Oct 05 2005 - 22:23:00 GMT-3


Hi Chris,

Thanks alot for your solution~ /bow =)

Since I am inside office right now (the other side of the world), so I can't
use my home lab to test the below configuration.

Would anyone can help me examine whether this configuration work as well or
not?

R1
int e0/0
ip address 172.168.1.1 <http://172.168.1.1/>
255.255.255.0<http://255.255.255.0/>
ip address 172.168.2.1 <http://172.168.2.1/>
255.255.255.0<http://255.255.255.0/>secondary
ip nat outside

ip nat outside source static 172.168.2.3 <http://172.168.2.3>
224.0.0.10<http://224.0.0.10>

I know this is not a very good solution compare with the one that Chris
posted but I just want to verify my concept on NAT.

Cheers~
Jacky

On 10/6/05, Chris Lewis <chrlewiscsco@yahoo.com> wrote:
>
> R1
> int e0/0
> ip address 172.168.1.1 <http://172.168.1.1>
255.255.255.0<http://255.255.255.0>
> ip address 172.168.2.1 <http://172.168.2.1>
255.255.255.0<http://255.255.255.0>secondary
> ip nat outside
> ip nat inside source static 172.168.1.1 <http://172.168.1.1>
172.168.2.3<http://172.168.2.3>
> Worked for me
>
> *Imal kalutotage <imal.kalutotage@gmail.com>* wrote:
>
> Hi Chris,
> It sounds like you have to use NAT for this.
> I tried to translate the source address (primary) to the seceondary
> address.
> But still couldnot acheive the end result...
> If you can post it, it will be helpful
> Cheers,
> imal
>
>
> On 10/5/05, Chris Lewis <chrlewiscsco@yahoo.com> wrote:
> >
> > Yes.
> >
> > Consider the following absolutes.
> > eigrp will always use the primary address on the interface to source
> > hellos from, regardless of the whether you enable a network statement
with
> > the primary or secoindary address.
> > EIGRP neighbors cannot form unless they are on a common subnet.
> >
> > Now, can you think of a way to have R1 send out packets with a source
> > address on the 192.168.2.0 <http://192.168.2.0/> subnet, even if the
> > routing process thinks it is sending out something on the
192.168.1.0<http://192.168.1.0/>subnet, can the router intervene and change
that address?
> >
> > If you have problems, post an attempt at solving this.
> >
> > Chris
> >
> > Niche < jackyliu419@gmail.com> wrote:
> > Hi guys,
> >
> > Is there any elegant way to accomplished this?
> >
> > e.g.
> > R1
> > int e0
> > ip address 192.168.1.1 <http://192.168.1.1/>
> > 255.255.255.0 <http://255.255.255.0/>
> > ip address 192.168.2.1 <http://192.168.2.1/>
> > 255.255.255.0secondary
> >
> > R2
> > int e0
> > ip address 192.168.2.2 <http://192.168.2.2/>
> > 255.255.255.0 <http://255.255.255.0/>
> >
> > GRE seem problematic when redistribution come into the picture and also
> > it
> > require to create new ip addresses.
> >
> > Cheers~
> > Jacky
> >
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