Communication Problem between two Subnets???

[jpyer]

We have two Sun Sparc systems running on the xxx.xxx.1.xxx network and can be access fine by machines on that subnet. We are able the ping one of the machines from the xxx.xxx.2.xxx network, but we are not able to ping or communicate with the other machine on the (1) subnet from the (2) subnet.

I'm not a unix junkie but our unix people are feeling this is a switch problem. We networking folk feel otherwise since we are able to communicate with one machine through the same switch.

The machines are "configured" the same. The net mask on both machines are the same.

Any ideas? Thanks for any input.
JP

 

[g6udx]

What sub-net masking are you using?

 

[ralpheb]

JP -

There are various ways to get end nodes on two different subnets to communicate with each other:

1. Add a router to the mix; or

2. Use a subnet mask that includes all of the end nodes
in the same subnet (this is what g6udx is driving at);
or

3. Use an end node configuration mechanism that makes
them ARP directly for off-subnet end nodes. This
configuration is OS-specific, and I do not know how
to configure this on Solaris. Sun should be able to
tell you how to do this.

Regards,
Ralph

 

[ralpheb]

JP -

Regarding my Option #3, here is an article that discusses this solution:

http://www.pnk.co.kr/white/Cabletron/SecureFast-1/5.html.

Unfortunately, the Solaris entry is blank. Maybe Sun can help you out if you choose Option 3.

Regards,
Ralph