Relay agents, NAT, and offers to giaddr

David W. Hankins David_Hankins at
Sat Sep 16 01:14:16 UTC 2006

On Fri, Sep 15, 2006 at 03:52:35PM -0700, Alan DeKok wrote:
>    But that's just what NAT boxes do...

Not precisely, no.  NAT boxes do not, as a general rule, peer into
SIP exchanges and 'fix' them so that SIP works across NAT, much
to the chagrin of any VOIP sysadmin you might meet.

Neither do they peer into any other UDP payload, and if they
were to, the results would be more disastrous than they are

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David W. Hankins	"If you don't do it right the first time,
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