[nsp] Bridging?

[Bruce Pinsky]

Vincent De Keyzer wrote:

> Bruce,
> 
> thank you so much! PPP half-bridging is exactly what I am trying to achieve.
> 
> Now Serial0/0:0 is up (ppp neg complete), but there is a MAC address
> problem: when I am trying to ping from the Ethernet host, here is what I see
> on the E1 router:
> 
> *Mar  1 23:54:03.006 CET: IP ARP: rcvd req src 10.159.159.202
> 0006.d6ca.4800, dst 10.159.159.201 Serial0/1:0
> *Mar  1 23:54:03.010 CET: IP ARP: creating entry for IP address:
> 10.159.159.202, hw: 0006.d6ca.4800
> *Mar  1 23:54:03.010 CET: %IP-4-ZERO_ADDR: Zero MAC address for
> 10.159.159.201 in ARP cache
> 2621#sh arp | i 10.159.159.20
> Internet  10.159.159.202          2   0006.d6ca.4800  ARPA   Serial0/1:0
> 2621#
> 
> Config is as follows:
> 
> 2621#sh ru int s0/1:0
> Building configuration...
> 
> Current configuration : 121 bytes
> !
> interface Serial0/1:0
>  ip address 10.159.159.201 255.255.255.252
>  encapsulation ppp
>  no cdp enable
>  ppp bridge ip
> end
> 
> 2621#
> 
> So it seems that it does not work because there is no MAC address assigned
> to this serial interface.
> 
> How can I assign one?...
> 

What version are you running?  There are a few bugs that match this symptom.

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bep