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ACL for odd-numbered UDP ports

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qkrylel

Vendor
Feb 12, 2010
1
SE
Hi!

I need to kill the RTCP negotiation in order to force the RTP to run in non-multiplexed mode. Our appliaction uses even-numbered ports for individual RTP streams and odd-numbered ports for RTCP negotiation, if that is supported by the remote end. If RTCP is not possible classic RTP is used, what's I'm all after.

The problem is that my ACL cannot span over a specified range of ports, since it would obviously kill both RTP and RTCP. Separate ACLs vreated for each odd RTCP port (need hundreds of them) overload the CPU pretty easily.

Is there any smart way to block odd-numbered UDP ports only, possibly using ACLs?

The switch is summit48i, running 7.8 image.

Cheers

/Krystian
 
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