vaillan@ireq.hydro.qc.ca (Clement Vaillancourt) (01/16/91)
Routing problem:
I have a 3Com CS200 terminal server on a subnet on the other side of
an Auspex. This terminal server has one of it's port assigned an ip number
for a real-time machine attached to it.
If I am on the Auspex, I can telnet to 131.195.4.110 and it works, the
job is being done by the CS200. But if I am on any other machines on my
main backbone, I can't reach 131.195.4.110 with a telnet.
All other machines (mainly Sun) on the backbone and on the small
subnet can of course talk together without problems. All the Sun on
the subnet 131.195.4 can reach the Real-Time Machine at 131.195.4.110.
I am running in.routed in the Auspex
Main backbone 131.195.8 subnetted class B
--------------------------X----------------------------------X-----------
| |131.195.8.14
|131.195.8.1 --------
------------ | Cisco|
| Auspex | NFS server --------
------------ |
|131.195.4.1 -->Internet
|
| small subnet 131.195.4
----------X-------X---------------------
|
|
| 131.195.4.10
--------
|CS200 | Terminal Server
--------
|
| <--- RS-232 line
|
-------------------
|Real-Time Machine| Assigned 131.195.4.110
------------------- on the terminal server.
In the Auspex, I have the this Routing tables
Destination Gateway
127.0.0.1 127.0.0.1
default 131.195.8.14
131.195.8.0 131.195.8.1
131.195.4.0 131.195.4.1
Where is the problem?
--
Clement Vaillancourt, | Institut de Recherche d'Hydro-Quebec
Responsable du Reseau | 1800 Montee Ste-Julie, Varennes
Network Manager | P. Quebec, Canada, J3X 1S1
vaillan@ireq.hydro.qc.ca | Tel: 514-652-8238 / Fax: 514-652-8309vaillan@ireq.hydro.qc.ca (Clement Vaillancourt) (01/17/91)
In article <4809@s3.ireq.hydro.qc.ca> vaillan@ireq.hydro.qc.ca () writes: >Routing problem: > >I have a 3Com CS200 terminal server on a subnet on the other side of >an Auspex. This terminal server has one of it's port assigned an ip number >for a real-time machine attached to it. > >If I am on the Auspex, I can telnet to 131.195.4.110 and it works, the >job is being done by the CS200. But if I am on any other machines on my >main backbone, I can't reach 131.195.4.110 with a telnet. > > Main backbone 131.195.8 subnetted class B > --------------------------X----------------------------------X----------- > | |131.195.8.14 > |131.195.8.1 -------- > ------------ | Cisco| > | Auspex | NFS server -------- > ------------ | > |131.195.4.1 -->Internet > | > | small subnet 131.195.4 > ----------X-------X--------------------- > | > | > | 131.195.4.10 > -------- > |CS200 | Terminal Server > -------- > | > | <--- RS-232 line > | > ------------------- > |Real-Time Machine| Assigned 131.195.4.110 > ------------------- on the terminal server. With the help of Jeremy A. Siegel (jzs@ktaadn.ESD.3Com.COM) at 3Com and Linda Bridwell at Auspex (cat@auspex.com) the problem was found. Once you set up the default gateway address in the CS200 to point to the 131.195.4.1 of the Auspex, you have to issue a ZeroArp command to the CS200 to clear the old routes in the memory of the CS200. Thank you very much for the great help! Clement. -- Clement Vaillancourt, | Institut de Recherche d'Hydro-Quebec Responsable du Reseau | 1800 Montee Ste-Julie, Varennes Network Manager | P. Quebec, Canada, J3X 1S1 vaillan@ireq.hydro.qc.ca | Tel: 514-652-8238 / Fax: 514-652-8309