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I'm writing an Windows application using multicast. This application
works with my win2k software router.

But my customer with Cisco 1000 (not sure exact model) reported that
my application doesn't work with multicast.
So I tried to find out the specification of cisco 1000 to check if it
supports IGMP. But cisco web document doesn't have any material
regarding multicast.

Would you let me know if it supports multicast and IGMP? In this case,
how can I check and configure the router settings, if possible telnet
command and example?

Thanks in advance

Regards,
Scott