[Asterisk-Users] Trouble with 2 NIC cards

[Ray Burkholder]

I'm just finishing the test of a solution where the Asterisk box acts as a
firewall between the outside world and the inside world, but uses only a
single network card.  It uses the VLAN capabilities built into Redhat 9.0.
As a consequence, the switch to which it is connected needs to understand
VLAN aka 802.1q as well.  I've found an IPTables configuration that locks
the box down quite a bit.  Now I'm working on installing Asterisk so it can
listen on the various sub-interfaces.  I think I've successfully resolved
the various internal routing issues.  I should know the results of this
experience later today.

I've got some vlan configs on my site:
http://www.oneunified.net/support/ under Linux support.

I hope to post the iptables config (for NAT, forwarding, and firewall) later
on today.


Regards,
Ray Burkholder
> 
> The problem should be easy enough to solve for someone who knows the
> internal guts. As a matter of fact, this is very important to resolve.
> Asterisk behind firewall is trouble and that is known already. So I
> decided to use the same linux box as firewall, meaning I need atleast
> two NICs. I wonder how others are solving this issue. I refuse to
> believe that no one faced similar problems cause there is no other way
> for a beginner to plant an Asterisk box but have two NICs or 
> go through
> the NAT troubles. Moreover, there are news posts all over about SIP
> phones meaning others are connecting more than one NICs. 
> Wonder why they
> don't have similar issue. I am sure that there are more out there who
> are facing similar problems so people who have solved this, 
> please speak
> up and help us all.
> 
> Thanks in advance.
> Ricky


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