VoIP and IPFW
garycor at comcast.net
Wed Sep 8 14:20:14 PDT 2004
Maksim Yevmenkin wrote:
>> I'm considering testing the Vonage service, with my FreeBSD-4.10
>> system (maybe 5 or 6). I wonder if anyone here has a configuration
>> they can share, or if there are any pages out there that detail the
>> proper (and secure) setup.
> i'm using lingo (www.lingo.com) - very similar to vonage. i use freebsd
> 4.10 as my firewall/nat/wireless access point/etc. the lingo box in
> behind freebsd box. it gets its ip (local) via dhcp and then talks to
> the lingo servers (via nat). it seems both providers are using sip, so i
> did not have to open anything on my nat/firewall, because the lingo box
> initiates the connection from the inside.
I can understand how you can do outgoing calls behind a NAT firewall,
because you initiate the connection. But can you receive *incoming*
calls? Or are you always "connected" to the VOIP provider, and thus
your firewall/reverse-nat is always open/setup?
More information about the freebsd-net