[HECnet] GRE tunnel working!

[Peter Lothberg]

What I haven't found out is when the IP tunnels were introduced in the IOS=
. It seems to be in IOS 11.2. So it is included in all recent
versions, but the Cisco 2500's have limited flash and RAM
capabilites. Therefore the recent IOS's cannot be used with older
hardware. I suppose the IOS 11.2 should be sufficient for tunneling
DECnet over IP. 

GRE 9.21s that was renamed 9.20.. I wanted to talk Chaosnet over IP
and we wanted a generic way of doing foo-over-IP. But, before the GRE
code worked Kirk broke Chaosnet, so there is no official release that
does GRE and Chaosnet .._:)

-P