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NBX V3001 VS IPSEC VPN (LINUX BASED)

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ltpitt

IS-IT--Management
Mar 21, 2011
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IT
Hi all!

I have a very small branch office (with a single phone) and we're using Linux (racoon) to connect it via VPN to our nbx v3001.

The phone rings but no voice gets to the phone.

What am I doing wrong?

 
No audio both side ?
IP Phone had a static IP ??
NBX had ip-on-fly ?
NBX use a static ip for each device ?

Port on Firewall open udp 2093-2094-2095-2096
 
Hi my friend...

No audio on both sides...

NBX and Phone and adsl external connection have all static ip.

The little netgear router / firewall (I use in the branch office) to connect to a linux ipsec vpn server maybe should be configured with port forwarding you suggested?

Thanks for your help!
 
You must have STATIC IP LIcence on NBX or IP-ON-FLY .
Because if you see , normally on same LAN each phone haven't ip address set , all work via mac-address .

For conencted on other LAN each Device on LAN with NBX need IP .

Correct you have signalling , but not have audio because device on same LAN NBX haven 't IP .
 
This is not so clear to me...

I have this problem because my astaro firewall (that was acting as vpn ipsec server) subscription is ended so I thought to use racoon on linux to prepare a vpn ipsec server for free.

Is this helpful to understand better the scenario?

Thank you for your kind helpò
 
Hi sorry , before crash your astaro all work fine ??
 
Yes my friend.

The astaro license died and because of cheap netgear routers in branch offices I'm forced to use a free ipsec vpn server with preshared key (only vpn supported on the branch offices' side).

I thought about linux and I've chosen racoon to prepare a vpn server.

It worked great for computer and applications but the phone is acting as I've told: it reacts to ping, it rings but no audio both ways.

 
OK ,

Only port open for voice is udp 2093-2094-2095-2096 and only one port for signalling TCP 1040 if i remember correct .

If default gateway is same of older astaro , you need trace with wireshark if you have packet incoming to side NBX ( udp 2093-2094-2095-2096 ) and packet out to side Phone ( udp 2093-2094-2095-2096 ) .

Only one port 2093-2094-2095-2096 transport voice , in this moment i don't remenber

 
I finally got it!

There were two problems:

a) a static route to be added (to let nbx communicate successfully BOTH ways with the branch office) and
b) NAT *has* to be disabled to let the phone work correctly when using my linux vpn server and SADLY gateway for internet

So now I need to find out if I can use both of the functions at the same time... :/
 
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