[Asterisk-Users] RFC2833 & firewall problems? (16-byte UDP packets)

[Matt Riddell]

Bryan Field-Elliot wrote:
> When watching from the Asterisk server (running tcpdump), the 
> destination IP address and port number are the same for the conversation 
> packets and the RFC2833 packets.

As they should be!

:)

> But when watching from the SIP client's local LAN (another computer on 
> the subnet, in promisc mode, running tcpdump), the RFC2833 packets 
> (length 16) never arrive.

Hmmm. Do you get other UDP packets of the same size through? Are the 
packet headers similar?  Is there anyway you can put a box in front of 
the firewall/in a dmz?

> Weird?

Indeed.

-- 
Cheers,

Matt Riddell
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