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EWieling at nyigc.com
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 Posted: Thu Dec 04, 2014 10:37 am Post subject: [asterisk-users] Weird SIP stuff |
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We are seeing something weird we haven't come across before. It seems they are sending us a different IP in the SIP from URI, than the IP they are actually sending us the traffic from.
Basically, the traffic is coming from 65.211.180.237 but the header is:
f: <sip:+1347545xxx@199.173.94.80:5060;user=phone>;tag=4-45026-159e4a6-995949f-159e4a6
Does anyone know if this is normal and how I might make it work with Asterisk. Incoming calls are not matching the we auth on IP only
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cloos at jhcloos.com
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| Posted: Thu Dec 04, 2014 6:07 pm Post subject: [asterisk-users] Weird SIP stuff |
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| Quote: | | Quote: | | Quote: | | Quote: | | Quote: | "EW" == Eric Wieling <EWieling@nyigc.com> writes:
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EW> Basically, the traffic is coming from 65.211.180.237 but the header is:
EW> f: <sip:+1347545xxx@199.173.94.80:5060;user=phone>;tag=4-45026-159e4a6-995949f-159e4a6
The From: header and the socket ip are often different.
Check for Via: headers. Those show the path of the SIP. In your
example, look for a Via which mentions 65.211.180.237.
Note that the From does not necessary have to be a sip address reachable
from the outside.
-JimC
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James Cloos <cloos@jhcloos.com> OpenPGP: 0x997A9F17ED7DAEA6
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