[comp.dcom.sys.cisco] Compatibility with IBM 8209

ACEE@CERNVM.BITNET (Acee Lindem) (04/17/91)

 
When routing TCP/IP to a bridged token ring network with Ethernets
attached via IBM 8209s, accessibility problems result in the following
situation:
 
  1. The target station is resident on the Ethernet.
  2. The AGS Gateway contains a valid IP ARP cache entry for
     the target station.
  3. The token ring source routing RIF cache entry for the station
     has been aged out.
 
To find the best route, an XID explorer frame is sent to the target station
and the 8209 bridges it to the Ethernet. However, most Ethernet V2
stations don't respond to XID frames. Consequently, the station cannot
be accessed. A solution is to hard configure the Ethernet station
as having a permanent RIF but this is not very flexible. In the other
direction, everything works fine.
 
Is there a fix available? Has anybody else experienced this problem?