Multicast over PIX firewall

[douglashui]

Dear All,

My internal network has client listen to multicast traffic from the outside.

Can I permit multicast traffic via the pix? and how can it be done?

Thanks.

C.K.

[attrgautam]

Well PIX doesnt allow multicast traffic. You can probably tunnel multicast traffic using GRE.

Hope this link will help

http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a00800943fe.shtml

Or you can upgrade to an ASA which can do multicast

[douglashui]

How to configure the ASA to allow multicast traffic?

Thanks.

[attrgautam]

The ASA config guide explains multicast routing in ASA.

http://www.cisco.com/en/US/products/ps6120/products_configuration_guide_chapter09186a008045247f.html

[Jay Johnston]

Also note the TAC has written an ASA Multicast troubleshooting guide:

http://www.cisco.com/en/US/products/ps6120/products_tech_note09186a0080befd2a.shtml