Date: Wed, 08 Sep 2004 14:41:19 -0700 From: Maksim Yevmenkin <maksim.yevmenkin@savvis.net> To: Gary Corcoran <garycor@comcast.net> Cc: Forrest Aldrich <forrie@forrie.com> Subject: Re: VoIP and IPFW Message-ID: <413F7C7F.2070603@savvis.net> In-Reply-To: <413F79DC.1010204@comcast.net> References: <413F6BBE.1050202@forrie.com> <413F745F.3020306@savvis.net> <413F79DC.1010204@comcast.net>
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Gary Corcoran wrote: > Maksim Yevmenkin wrote: > >> Hello, >> >>> 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? yes, the lingo box is 'always "connected"', so incoming calls work just fine. one more thing - i had to give ntp servers list in the dhcp response to the lingo box, otherwise caller id time was way off :) max
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