Thank you very much for your reply, Rick.

The customer has replied with the following -

---------

none of the Ethernet subnets can ping the token ring subnet, however the token ring subnet can ping all of the ethernet subnets!

One other thing I noticed was that even though I could ping the gateway address of all the Ethernet subnets (232.1, 236.1 & 238.1) from the token ring subnet, I couldn't ping the PC address (232.50 for example).

-----------

So, I have requested for a more detailed explanation of this. Once i get a response, I shall post it back here. Looking forward to your help here.

Kind Regards

arav

Hi Rick,

These are the results -

Pinging from the Token Ring PC, I can ping the Ethernet gateways, just not the PC connected to any of them.

Pinging from the Ethernet PC, I can't ping the Token Ring interface.

Arav,

Is there a default gateway configured on the Ethernet connected PC?

Regards

Hi Harold,

The default gateways are configured on the PC and the customer has confirmed that it is correct.

I have never done TokenRing before nor could I find any relevant documents to sort this out.

Many thanks for all your help. Looking forward to your help to get this working.

Many thanks

Arav

Arav

One of the nice things about routing IP at layer 3 is that IP is not dependent on any layer 2 things (which is where Token Ring and Ethernet are different). So from an IP routing standpoint it no different routing to Token Ring or routing to Ethernet.

The symptoms suggest that either the default gateway on the Ethernet is not really correct or that there is some kind of access list or other filtering that is preventing the traffic. I would suggest that you ask that they provide the output of ipconfig (or other appropriate command if the device is not Windows) from both the Ethernet PC and the Token Ring PC.

HTH

Rick

Hi Rick

Please find the outputs of the ipconfig screen and some debug and show arp outputs from the router.

Many thanks

Regards

Arav

Arav

Thank you for the additional information. It does show that both PCs do seem to have correct default gateways configured, which was one of my theories.

I wonder if the issue might be a firewall on the Ethernet PC at 172.25.232.50. Is it possible that the PC does not accept ping? If you just do a standard ping from the router to the PC does it respond?

HTH

Rick

Hi Rick,Many thanks for your quick rply.

Please find some ping outputs sourced from its own interface IP and from each other.

HART-WA01-RH1#ping 172.25.232.50

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 172.25.232.50, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms

HART-WA01-RH1#ping 172.25.148.47

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 172.25.148.47, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms

HART-WA01-RH1#ping 172.25.148.47 so vl2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 172.25.148.47, timeout is 2 seconds:

Packet sent with a source address of 172.25.232.1

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms

HART-WA01-RH1#ping 172.25.232.50 so tok1/0

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 172.25.232.50, timeout is 2 seconds:

Packet sent with a source address of 172.25.148.1

.....

Success rate is 0 percent (0/5)

interface Vlan2

description ** Server Subnet **

ip address 172.25.232.1 255.255.255.0

end

interface TokenRing1/0

ip address 172.25.148.1 255.255.252.0

ring-speed 16

end

Many thanks, Arav

Arav

Thanks for the additional information which I asked for. It certainly shows that it is not an issue with a firewall preventing pings. What happens if you do ping sourced from vlan 3 or from vlan 4?

I also wonder if you could post the output of route print from the Ethernet PC.

HTH

Rick

Hi Rick

Happy new year to you and everyone from our forum !Apologies for the late reply ! But the problem is fixed ! Thanks for all your help. Please find the config -

Source-Route Translational Bridging (SR/TLB))

!

source-bridge ring-group 10

source-bridge transparent 10 11 1 1

!

interface FastEthernet0/1/0

description ** To 232 Subnet **

switchport access vlan 2

!

interface TokenRing1/0

ip address 172.25.148.1 255.255.252.0

ring-speed 16

source-bridge 1 1 10

source-bridge spanning

!

!

interface Vlan2

ip address 172.25.232.3 255.255.255.0

standby 2 ip 172.25.232.1

standby 2 timers msec 500 1

standby 2 priority 110

standby 2 preempt

bridge-group 1

!

bridge 1 protocol dec

bridge 1 bitswap-layer3-addresses

HTH

Arav

Arav

I am glad that you found a solution for the problem. Thannk you for posting back to this thread and indicating that the problem was solved and how you solved it. It helps make the forum more useful when people can see that a problem has been resolved.

HTH

Rick