Here's our setup:
Internal Network INTERNALNET 10.2.2.X
L2TP Network setup via the VPN setup FAQ for VPNNET 10.242.3.X
External IP address INETADDY
voip PHONEADDY server on the internal network 10.2.2.25
Packet Filter rule allowing any SIP -> PHONEADDY
Packet Filter rule allowing any RTP -> PHONEADDY
DNAT forwarding INETADDY SIP -> PHONEADDY
DNAT forwarding INETADDY RTP -> PHONEADDY
I can connect just fine from the internal network to PHONEADDY, and I can connect just fine from anywhere on the internet to INETADDY.
When I am connected to the VPN I can force connections to PHONEADDY and it works fine but I want the VPN folks to be able to keep their soft phone connections the same for when they are not connected and when they are connected using voip.our.domain.com. Is this a viable thing to do?
I had a similar problem with trying to get folks on INTERNALNET to get standard http/ftp requests to resolve correctly when they are trying to view the corporate website via http://INETADDY and setup FNAT's from INTERNALNET to INETADDY.
I tried this same thing with the phone:
VPNNET for the SIP service -> INETADDY Destination PHONEADDY source INETADDY
VPNNET for the RTP service -> INETADDY Destination PHONEADDY source INETADDY
but I still can't get the mobile users to be able to connect to our phone via voip.our.domain.com when VPN'ed into our network.
Uhm, is that crystal clear? Am I doing this wrong? Thanks!
predator
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