Iax through ssh tunnel

Asterisk Asterisk Support
1

Hi,

I’m unsuccesfully trying to configure a iax channel over a tcp tunnel. I’m doing that in order to make phone call from work (my laptop) where almost everything is bloqued. I stay there at night and would like to reach my asterisk home to place calls. My asterisk server at home is run on a NSLU2.

I’m doing this:

On the client/laptop (with restricted web access):

socat udp4-listen:4570,reuseaddr,fork tcp:localhost:4571&
ssh -L 4570:localhost:4570 server

iax.conf:
…
[nslu2]
type=peer
bindport=4570
host=localhost
auth=rsa
outkey=key1
username=laptop

extensions.conf:
exten => 21,1,Dial(IAX2/nslu2/0);grepo
exten => 21,n,Hangup()

On the server:

iax.conf:
…
[laptop]
type=user
auth=rsa
inkeys=key1
bindport=4570
host=localhost
context=from-iax

extensions.conf
…
[from-iax]
exten => 0,1,Dial(SIP/1000)
exten => 0,n,Hangup()

It does not work.

When placing a call, I got an error message in the asterisk client:

  -- Executing [21@fromsoftphone:1] Dial("SIP/2000-085f6ea8", "IAX2/nslu2/0") in new stack
    -- Called nslu2/0
[Sep 29 08:43:07] NOTICE[9875]: chan_iax2.c:7561 socket_process: Rejected connect attempt from 192.168.1.99, who was trying toreach '0@'
[Sep 29 08:43:07] WARNING[9878]: chan_iax2.c:7771 socket_process: Call rejected by 192.168.1.99: No authority found
   -- Hungup 'IAX2/nslu2-11004'
  == Everyone is busy/congested at this time (1:0/0/1)
   -- Executing [21@fromsoftphone:2] Hangup("SIP/2000-085f6ea8", "") in new stack
  == Spawn extension (fromsoftphone, 21, 2) exited non-zero on 'SIP/2000-085f6ea8'

ps: I made a first test using a direct connection in order to test RSA authentication and it was working with my laptop at home on the same local network as my asterisk server.

2

If you can install hamachi on your device, it works great folr that