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Forum Discussion
SIP - VoIP Firewall config
Hello,
I'm trying to configure the Netgear UTM5 in order to accept :
- Inbound SIP-VoIP calls
- Outbound SIP-VoIP calls
Outbound calls is easy to configure. I just create an outbound rule going from my Asterisk SIP server to the WAN VoIP operator IP adress.
Inbound calls are giving me some headache.
SIP is using a SIP port (5060) for VoIP signaling and a lot of differents ports for VoIP data-voice transmission may be used (depending of how many calls are currently activ).
Of course I set an inbound rule going on port 5060 that is forwarded to my Asterisk SIP server.
But for the data-voice ports, there are a lot and I don't want to open all of them.
Netgear has an ALG SIP feature which should track on the SIP communication (5060) opening/closing of ports for data-voice channels and allow dynamically this ports for Inbound access.
I activated this feature.
Unfortunately, this doesn't seem to work.
The user manual contains just 9 lines explanations about it... That's pretty few
Doesn't anybody has any experience on configuring VoIP with Netgear UTM5 ?
Thanks
I'm trying to configure the Netgear UTM5 in order to accept :
- Inbound SIP-VoIP calls
- Outbound SIP-VoIP calls
Outbound calls is easy to configure. I just create an outbound rule going from my Asterisk SIP server to the WAN VoIP operator IP adress.
Inbound calls are giving me some headache.
SIP is using a SIP port (5060) for VoIP signaling and a lot of differents ports for VoIP data-voice transmission may be used (depending of how many calls are currently activ).
Of course I set an inbound rule going on port 5060 that is forwarded to my Asterisk SIP server.
But for the data-voice ports, there are a lot and I don't want to open all of them.
Netgear has an ALG SIP feature which should track on the SIP communication (5060) opening/closing of ports for data-voice channels and allow dynamically this ports for Inbound access.
I activated this feature.
Unfortunately, this doesn't seem to work.
The user manual contains just 9 lines explanations about it... That's pretty few
Doesn't anybody has any experience on configuring VoIP with Netgear UTM5 ?
Thanks
1 Reply
- Create an inbound rule for 5060:UDP (this is for registration and call connect)
Create a port trigger rule - 10000-20000 again UDP (This is for voice traffic)
Thats it.
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