["Greg Osinaike" <gregory.osinaike@xxxxxxxxxxxxxx>]

>The *ONLY* way you get that in Ethereal is if Ethereal happens to see an
>ARP packet that specifies that a given MAC address is the MAC address
>for a given IP address.  There is no other way to do that.

So I can't edit my Linux files such as /etc/networks as Ethereal does not
search there. Then how can I make these ARP packets (maybe I can make a
script ).

>What do you mean by "unable to display the IP addresses"?

I am running some code which inserts am MPLS header between the Ethernet
header and network layer header, then sends the packet out to its
destination.

There certainly is an IP header in the datagrams which contains source and
destination addresses. However Ethereal only displays addresses for _these_
packets w.r.t Ethernet MAC addresses. I believe the sandwiched header is
'confusing' Ethereal and some how it is unable to obtain all the IP
information I want. It does display info on packet size, time of arrival,
order...

Perhaps the MPLS header is where Ethereal expects to see the IP header.