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Silver

Multicasting problems

Hello All

I got some problems with setting up multicast in a routed, firewalled enviroment.

Please see my thread http://forums.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Security&topic=Firewalling&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.1ddc32ef

for more info.

I hope that here somebody can help.

Thanks,

patrick

7 REPLIES

Re: Multicasting problems

Hi there,

What is the multicast config on your 6500 between vlan 200 and vlan 15 ?

LH

Silver

Re: Multicasting problems

on vlan 200 it's:

igmp forward interface transit1 (which is the 6500 router)

On vlan 15 is nothing special configured.

Cisco Employee

Re: Multicasting problems

I don't know the FWSM too well, so I won't comment on your configs. One thing I would like to point out though is that most of the times, multicast issues with Ghost are due to the TTL not being set to a value greater than one, which allows the packets to traverse a L3 device.

Hope this helps,

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México 
Paseo de la Reforma 222 Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
Silver

Re: Multicasting problems

Hmm...

This TTL could be it then indeed, currently it's set on default and I think that means it's 0.

Will change that and inform you.

Actually, where could I find this TTL setting in the CSM?

Or is that on the router side?

Cisco Employee

Re: Multicasting problems

The TTL would need to be changed on the Ghost server.

Hope this helps,

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México 
Paseo de la Reforma 222 Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
Silver

Re: Multicasting problems

I tested it now, it didn't work.

I got you some FWSM log, maybe you can right spot it. I'm not yet a proffessional, so I probably don't recognize it.

19-09-2006 08:21:10 %FWSM-6-302016: Teardown UDP connection 221473793 for transit1:152.96.25.81/68 to server2:a.a.21.10/67 duration 0:03:39 bytes 1038

19-09-2006 08:21:11 %FWSM-6-302016: Teardown UDP connection 0 for transit1:a.a.25.81/1346 to server1:229.55.150.208/1345 duration 0:02:03 bytes 2

19-09-2006 08:21:11 %FWSM-6-302016: Teardown UDP connection 0 for transit1:a.a.25.81/1346 to server2:229.55.150.208/1345 duration 0:02:03 bytes 2

19-09-2006 08:21:11 %FWSM-6-302016: Teardown UDP connection 0 for transit1:a.a.25.81/1346 to verw-client:229.55.150.208/1345 duration 0:02:03 bytes 2

19-09-2006 08:21:11 %FWSM-6-302016: Teardown UDP connection 0 for transit1:a.a.25.81/1346 to dozpers:229.55.150.208/1345 duration 0:02:03 bytes 2

19-09-2006 08:21:12 %FWSM-6-302016: Teardown UDP connection 219025313 for transit1:a.a.25.81/1346 to dozpers:a.a.201.66/1347 duration 0:21:11 bytes 36097

19-09-2006 08:21:12 %FWSM-6-302016: Teardown UDP connection 219025317 for dozpers:a.a.201.66/1345 to transit1:a.a.25.81/1346 duration 0:03:40 bytes 1743

19-09-2006 08:22:20 %FWSM-6-302016: Teardown UDP connection 219025319 for dozpers:a.a.201.66/6666 to transit1:a.a.25.81/1025 duration 0:03:36 bytes 918

19-09-2006 08:22:20 %FWSM-6-302016: Teardown UDP connection 0 for transit1:a.a.25.81/1025 to dozpers:224.77.0.0/6666 duration 0:02:03 bytes 0

19-09-2006 08:23:24 %FWSM-6-302014: Teardown TCP connection 219025327 for transit1:a.a.25.81/1025 to dozpers:a.a.201.66/1347 duration 0:00:00 bytes 10611 TCP FINs

19-09-2006 08:25:23 %FWSM-6-302016: Teardown UDP connection 219025324 for transit1:a.a.25.81/7777 to dozpers:a.a.201.66/1270 duration 0:05:05 bytes 2920

19-09-2006 08:25:26 %FWSM-6-302016: Teardown UDP connection 219025325 for dozpers:a.a.201.66/1345 to transit1:a.a.25.81/1346 duration 0:02:03 bytes 1162

19-09-2006 08:25:27 %FWSM-6-302016: Teardown UDP connection 221474355 for transit1:a.a.25.81/68 to server2:a.a.21.10/67 duration 0:02:03 bytes 692

19-09-2006 08:25:48 %FWSM-6-302016: Teardown UDP connection 0 for transit1:a.a.25.81/1346 to server1:229.55.150.208/1345 duration 0:02:03 bytes 1

19-09-2006 08:25:48 %FWSM-6-302016: Teardown UDP connection 0 for transit1:a.a.25.81/1346 to server2:229.55.150.208/1345 duration 0:02:03 bytes 1

19-09-2006 08:25:48 %FWSM-6-302016: Teardown UDP connection 0 for transit1:a.a.25.81/1346 to verw-client:229.55.150.208/1345 duration 0:02:03 bytes 1

19-09-2006 08:25:48 %FWSM-6-302016: Teardown UDP connection 0 for transit1:a.a.25.81/1346 to dozpers:229.55.150.208/1345 duration 0:02:03 bytes 1

19-09-2006 08:31:49 %FWSM-6-302014: Teardown TCP connection 219025328 for transit1:a.a.25.81/1025 to dozpers:a.a.201.66/1347 duration 0:00:00 bytes 2195 TCP FINs

19-09-2006 08:32:32 %FWSM-6-302014: Teardown TCP connection 219025329 for transit1:a.a.25.81/1025 to dozpers:a.a.201.66/1347 duration 0:00:20 bytes 64 SYN Timeout

19-09-2006 08:32:33 %FWSM-6-302014: Teardown TCP connection 219025330 for transit1:a.a.25.81/1025 to dozpers:a.a.201.66/1347 duration 0:00:00 bytes 718 TCP FINs

19-09-2006 08:33:42 %FWSM-6-302014: Teardown TCP connection 219025332 for transit1:a.a.25.81/1025 to dozpers:a.a.201.66/1374 duration 0:00:00 bytes 5678 TCP FINs

19-09-2006 08:34:37 %FWSM-6-302016: Teardown UDP connection 219025326 for transit1:a.a.25.81/1346 to dozpers:a.a.201.66/1347 duration 0:11:12 bytes 15778

19-09-2006 08:35:45 %FWSM-6-302016: Teardown UDP connection 219025331 for dozpers:a.a.201.66/6666 to transit1:a.a.25.81/1025 duration 0:02:03 bytes 612

19-09-2006 08:35:45 %FWSM-6-302016: Teardown UDP connection 0 for transit1:a.a.25.81/1025 to dozpers:224.77.0.0/6666 duration 0:02:03 bytes 0

Silver

Re: Multicasting problems

19-09-2006 08:36:37 %FWSM-6-302014: Teardown TCP connection 219025336 for transit1:a.a.25.81/1025 to dozpers:a.a.201.66/1347 duration 0:00:00 bytes 10714 TCP FINs

19-09-2006 08:38:36 %FWSM-6-302016: Teardown UDP connection 219025333 for transit1:a.a.25.81/7777 to dozpers:a.a.201.66/1373 duration 0:04:53 bytes 2920

19-09-2006 08:38:38 %FWSM-6-302016: Teardown UDP connection 219025334 for dozpers:a.a.201.66/1345 to transit1:a.a.25.81/1346 duration 0:02:03 bytes 1162

19-09-2006 08:38:41 %FWSM-6-302016: Teardown UDP connection 221475149 for transit1:a.a.25.81/68 to server2:a.a.21.10/67 duration 0:02:03 bytes 692

19-09-2006 08:39:01 %FWSM-6-302016: Teardown UDP connection 0 for transit1:a.a.25.81/1346 to server1:229.55.150.208/1345 duration 0:02:03 bytes 1

19-09-2006 08:39:01 %FWSM-6-302016: Teardown UDP connection 0 for transit1:a.a.25.81/1346 to server2:229.55.150.208/1345 duration 0:02:03 bytes 1

19-09-2006 08:39:01 %FWSM-6-302016: Teardown UDP connection 0 for transit1:a.a.25.81/1346 to verw-client:229.55.150.208/1345 duration 0:02:03 bytes 1

19-09-2006 08:39:01 %FWSM-6-302016: Teardown UDP connection 0 for transit1:152.96.25.81/1346 to dozpers:229.55.150.208/1345 duration 0:02:03 bytes 1

This are a few trials of my colleague who administrates the ghost server.

Thanks,

Patrick

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