Catalyst2912 and 2612 Config problem

[MVC]

Hello ,

we have a network that is running on TokenRing , but are planning to change to Ethernet.
so we bought 2 Ciscos to setup a test environment so we can test before we actual change.

the test situation :
1 pc with Ethernet connected to the Catalyst2912XL.
2 servers with Token Ring in a Token Ring-hub .
The Catalyst2912XL and the Token Ring hub are in the Cisco2612 Router.

We have done a basic configuration of both Ciscos and this is the result :
both interfaces ( ethernet0/0 and tokenring0/0 are up )
BUT there's a problem :
when we ping from the EthernetPC to a TokenRing server we get an answer , but when we ping from a TR server to the EthernetPC there's no answer.
So , Ethernet can see the TokenRing ,but TR can not see Ethernet !

Anybody any ideas ???
Thanks in advance

 

[MVC]

i'm happy i can tell you we solved the problem :

we had 1 network 10.10.x.x ( half TR - half Ethernet )
we split this up in 2 ; ethernet 10.11.x.x and TR 10.10.x.x.

in the TR-machines we put the IP-adres of the TR-card in the 2612 router as default gateway and in the Ethernet-machines we put the IP-adres of the ethernet-card in the 2612 as default gateway.
and now in test everything works !

 

[MVC]

Hello again !!!!

like I mentioned before the ping from Ethernet to TokenRing and vice versa work fine but there's still a problem !!

A server from the TokenRing-network can't see/contact the servers from the Ethernet-network and vice versa ( except by pinging , but not by Network Neighbourhoud or Windows Explorer )

Can anybody help me out here ?

 

[hexn]

The reason you cant see network neighborhood of both sides at the same time is because network neighborhood is discovered purely by broadcasts. Routers do NOT forward broadcasts. So the router between your 2 networks is stopping the broadcasts from crossing to the other side. The only way to remedy this is to setup the router to be a bridge and put both sides on the same subnet. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"There are two different kinds of people in this world: those
who finish what they start, and"

http://shnypr.com

tech@shnypr.com
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 

[MVC]

Hello again ,

For the moment the Ethernet an TokenRing interface belong to Bridge-group 1 ( sufficient ?? ) and have the same subnet. (255.255.0.0 )
Ther's no ip directed-forward enabled yet.
How do I enable it ? I allready set the command ,but it isn't saved. Do I need to create access-lists to enable this ??

Hope anybody can help !
( Shnypr , thanks allready ! )

 

[hexn]

If you setup transparent bridging, then the router should automatically forward all broadcasts. If you arent doing any routing on the router at all, then I would enter the "no ip routing" command which will give you a little more speed since none of the packets will actually go to the processor and just be processed by the bus2 controller making packet switching very fast.

Check this link out, and follow the instructions on "transparent bridging".

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/ibm_c/bcprt1/bctb.htm

This should solve your problem. ~~~~~~~~~~

http://shnypr.com

tech@shnypr.com
~~~~~~~~~~