In my system There is a Polycom HDC7000 video conferencing device and a VVX1500 ip phone.
Src:Any - Dst:ExtIP1 - Srv:Any -> DNAT to-destination IntIP7000 Src:Any - Dst:ExtIP2 - Srv:Any -> DNAT to-destination IntIP1500 Src:IntP7000 - Dst:Any - Srv:Any -> SNAT to-source ExtIP1 Src:IntP1500 - Dst:Any - Srv:Any -> SNAT to-source ExtIP2
When I have loaded nf_nat_h323 and nf_conntrack_h323, HDX7000 can not call outside, VVX1500 works correctly. When I have disabled those modules, HDX7000 works and VVX1500 stops working. Kernel is 3.5.3.
I can enable module for a specifi connection. (see my previous post). What can be the problem is? What do you suggest me?