Hi,

Just wondering if there are any special configs needed for EIGRP to run over
atm ?

In my test LAB I'm not able to make both sides see each other (EIGRP
neighbors). I can ping the other side with out any problems.

Thanks,
Tarry

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"ccna" <ccna@gmx.de> wrote in message news:<akkf8k$54l$04$1@news.t-online.com>...
> Hi,
>
> Just wondering if there are any special configs needed for EIGRP to run over
> atm ?
>
> In my test LAB I'm not able to make both sides see each other (EIGRP
> neighbors). I can ping the other side with out any problems.
>
> Thanks,
> Tarry


Actually, no. I am running EIGRP over ATM and there are no ATM
specific EIGRP configs. Pings do not necessarily tell if EIGRP is
working if there are otehr
routes. What does show route say about where routes are coming from?
ALso I would suggest some debug eigrp's.
-charlie

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Nothing special on ATM and as you know don't forget to remove the ipx
or ip split horizon at the hub site for a multi point link. I hope in
the real labs we will not have a 'physical' multilink network on a
ATM, it is just a point-to-point.

Also remember you can not map an nsap address with a remote ip address
on a point-to-point link so you are forced to select a multipoint here
however the disabling factor we discussed above will not appear in
this scanario.

suresh cne,mcse,ccsa,clp,scsa,ccse,cc
np,ccie(q)
http://www.surehshomepage.com

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"ccna" <ccna@gmx.de> wrote in message news:<akkf8k$54l$04$1@news.t-online.com>...
> Hi,
>
> Just wondering if there are any special configs needed for EIGRP to run over
> atm ?
>
> In my test LAB I'm not able to make both sides see each other (EIGRP
> neighbors). I can ping the other side with out any problems.
>
> Thanks,
> Tarry


Actually, no. I am running EIGRP over ATM and there are no ATM
specific EIGRP configs. Pings do not necessarily tell if EIGRP is
working if there are otehr
routes. What does show route say about where routes are coming from?
ALso I would suggest some debug eigrp's.
-charlie

Report this post to a moderator

Nothing special on ATM and as you know don't forget to remove the ipx
or ip split horizon at the hub site for a multi point link. I hope in
the real labs we will not have a 'physical' multilink network on a
ATM, it is just a point-to-point.

Also remember you can not map an nsap address with a remote ip address
on a point-to-point link so you are forced to select a multipoint here
however the disabling factor we discussed above will not appear in
this scanario.

suresh cne,mcse,ccsa,clp,scsa,ccse,cc
np,ccie(q)
http://www.surehshomepage.com

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You might want to check that broadcasts / multicasts are getting across the
link. If you have static mapping for the IP addresses, there is no need to
arp. EIGRP uses multicasts, so I suspect that may be the problem.

Regards

Jon CCIE RS
Nottingham UK.


"ccna" <ccna@gmx.de> wrote in message
news:akkf8k$54l$04$1@news.t-online.com...
> Hi,
>
> Just wondering if there are any special configs needed for EIGRP to run
over
> atm ?
>
> In my test LAB I'm not able to make both sides see each other (EIGRP
> neighbors). I can ping the other side with out any problems.
>
> Thanks,
> Tarry
>
>

Report this post to a moderator

You might want to check that broadcasts / multicasts are getting across the
link. If you have static mapping for the IP addresses, there is no need to
arp. EIGRP uses multicasts, so I suspect that may be the problem.

Regards

Jon CCIE RS
Nottingham UK.


"ccna" <ccna@gmx.de> wrote in message
news:akkf8k$54l$04$1@news.t-online.com...
> Hi,
>
> Just wondering if there are any special configs needed for EIGRP to run
over
> atm ?
>
> In my test LAB I'm not able to make both sides see each other (EIGRP
> neighbors). I can ping the other side with out any problems.
>
> Thanks,
> Tarry
>
>

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Thanks all,

This is my config

interface ATM0
ip address 10.0.0.1 255.255.255.0
pvc 0/32
protocol ip 10.0.0.2 broadcast
encapsulation aal5snap
!
Thanks,
Tarry

"Jon" <ttdriver@yahoo.com> wrote in message
news:mudtka.kt.ln@net.joneaton.net...
> You might want to check that broadcasts / multicasts are getting across
the
> link. If you have static mapping for the IP addresses, there is no need to
> arp. EIGRP uses multicasts, so I suspect that may be the problem.
>
> Regards
>
> Jon CCIE RS
> Nottingham UK.
>
>
> "ccna" <ccna@gmx.de> wrote in message
> news:akkf8k$54l$04$1@news.t-online.com...
> > Hi,
> >
> > Just wondering if there are any special configs needed for EIGRP to run
> over
> > atm ?
> >
> > In my test LAB I'm not able to make both sides see each other (EIGRP
> > neighbors). I can ping the other side with out any problems.
> >
> > Thanks,
> > Tarry
> >
> >
>
>

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Thanks all,

This is my config

interface ATM0
ip address 10.0.0.1 255.255.255.0
pvc 0/32
protocol ip 10.0.0.2 broadcast
encapsulation aal5snap
!
Thanks,
Tarry

"Jon" <ttdriver@yahoo.com> wrote in message
news:mudtka.kt.ln@net.joneaton.net...
> You might want to check that broadcasts / multicasts are getting across
the
> link. If you have static mapping for the IP addresses, there is no need to
> arp. EIGRP uses multicasts, so I suspect that may be the problem.
>
> Regards
>
> Jon CCIE RS
> Nottingham UK.
>
>
> "ccna" <ccna@gmx.de> wrote in message
> news:akkf8k$54l$04$1@news.t-online.com...
> > Hi,
> >
> > Just wondering if there are any special configs needed for EIGRP to run
> over
> > atm ?
> >
> > In my test LAB I'm not able to make both sides see each other (EIGRP
> > neighbors). I can ping the other side with out any problems.
> >
> > Thanks,
> > Tarry
> >
> >
>
>

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ccna wrote:
>
> Thanks all,
>
> This is my config
>
> interface ATM0
> ip address 10.0.0.1 255.255.255.0
> pvc 0/32
> protocol ip 10.0.0.2 broadcast
> encapsulation aal5snap
> !
> Thanks,
> Tarry

That is definitely not enough!
You desperately need to configure the peer router as well (you have sent
just one config) ;-)

Mirek

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