[Asterisk-Users] IAX with shaw cable not going through

[Joseph]

On Sat, 2005-06-18 at 14:16 -0600, Joseph wrote:
> I just changed the from DSL to Shaw Cable (static IP) configure the
> firewall but now asterisk I can not register with FWD nor VoipJet calls
> going out.
> 
> I am using IAX with FWD
> Did I missed to change a setting?  I don't think there is any though.
> 
> I am on shaw extreme connection; I just talked shaw tech. and they are
> not blocking any port - I was told.
> So why IAX will not register with FWD and calls to VoipJet are not
> getting connected.

I've boot my asterisk backup server to  ADSL and everything is working
FWD, VoipJet.

Short story: The only thing I've done differently is I've spoofed MAC
address on the firewall on an external port - eth0 to get the same IP
address from Shaw, but I don't see how that could make a difference.

Long Story: Shaw has those new Cable Modem - Motorola SURFboard SB5100
that once configured to an IP address with one firewall it will retain
that MAC address of that first firewall for about 4-hours.  When I first
experimented that Cable Modem I've connected my backup firewall and the
Modem retained that MAC address.
So in order to connect the second firewall and get the same IP address,
I need to spoof the MAC address of the first firewall or wait 4-hours.
So I went with the second solution but I don't see how that could make a
difference, the only way to tell is to wait 4-hours to remove the spoof
MAC address from the firewall.
 
-- 
#Joseph