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Re: Asterisk ignoring replayed libpcap sessions



That is true but unfortunately (or fortunately depending on how you
look at it) it works perfectly using python and plain old UDP sockets
just reading the plain text SIP dump from file.

On 10/30/06, Stefano Zanero <s.zanero@securenetwork.it> wrote:
nnp wrote:
> SIP is carried over UDP.

Yes, that's true, but is it only SIP that you are talking about ? And
even in that case... it's not so simple.

TCPReplay also replays UDP packets, but if for instance those packets
contain nonces, identifiers that can be changed from either side, or
other elements of freshness, you can't expect that a server will react
correctly to a blind REPLAY of a former session... much in the same way
this wouldn't fly with TCP based protocols

Stefano



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