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Thread: sip and vpn connections




sip and vpn connections
country flaguser name
Romania
2007-08-28 01:59:30
Hi,

I have a strange problem with SIP going through a VPN
connection.

I have two sites, connected via a site 2 site full mesh vpn
connection. 
NAT is disabled inside the VPN community.

everything works ok except sip, which is being dropped by
the firewall 
with the message: "connection contains real ip of
natted address". I 
even put two no-nat rules in the nat tab of the fw to not
allow nat to 
happen between the two networks. I disabled anything I could
find 
regarding SIP in smart defense without any luck.

I'm puzzled on why that is happening as from site A to site
B I can open 
the web interface of the phone, but SIP is being dropped and
I'm 
wondering if any of you came across this issue and how did
you manage to 
fix it ?

site A enforcement module is NGX R65, site B enforcement
module is NGX 
R60_HFA05.

thank you,

sin

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