[c-nsp] RBE problems on ATM point-to-point

Gordon Bezzina gordon.bezzina at bell.net.mt
Thu May 31 12:35:10 EDT 2007


Hi,

I have just upgrade from the 7513 IOS 12.2 to the 7600 IOS 12.2SRB.

Everything went smooth except my ATM adsl connections. I had to migrate
>From BVIs to RBEs as BVI are not present anymore, and there my trouble
started.

What I am experiencing is very weird.

1. Only one machine at a time seems to be able to work at the remote
connection even though I have dedicated a full subnet in the numbered
Interface.

2. Firewalls at remote site are acting funny. Basically Nated devices can
Ping the gateway but nothing else. Take the firewall out and it work fine.

I honestly do not know what is happening. Maybe it is something stupid, but 
I just cannot see it.

Please help.

Best Regards
Gordon Bezzina

Eg.

interface Loopback1
 description CATS-Group
 ip address a.a.a.a 255.255.255.248
!

interface ATM2/0/0.307 point-to-point
 ip unnumbered Loopback1
 ip flow ingress
 atm route-bridged ip
 no atm enable-ilmi-trap
 pvc 0/307
  encapsulation aal5snap
 !
!
interface ATM2/0/0.308 point-to-point
 ip unnumbered Loopback1
 ip flow ingress
 atm route-bridged ip
 no atm enable-ilmi-trap
 pvc 0/308
  encapsulation aal5snap
 !
!

Ip route a.a.a.a1 255.255.255.255 ATM2/0/0.307
Ip route a.a.a.a2 255.255.255.255 ATM2/0/0.308


The below setup also exhibits the same behaviour for all the machines at the
other end.

interface ATM2/0/0.308 point-to-point
 ip a.a.a.a3 255.255.255.248
 ip flow ingress
 atm route-bridged ip
 no atm enable-ilmi-trap
 pvc 0/308
  encapsulation aal5snap
 !
!





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