----- Original Message ----- From: "Dan" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, June 26, 2003 10:19 AM Subject: Re: [Asterisk-Users] Asterisk, IAX and NAT issue
> Hi Simon, > > > Is your firewall redirecting incoming connections on n.n.n.n:5036 to > > the Internal Asterisk instance? If you don't see any messages on the > > inside Asterisk box it's unlikely. > More than that... Asterisk is configured as DMZ in the NAT router, so it is > fully exposed to the internet. > More, from outside I can register a SIP phone to the internal Asterisk and > use it for placing calls. > > > > > The best thing to do is probably do a tcpdump -n -i eth0 host n.n.n.n > > and host x.y.z.u (or similar) and try and diagnose what is actually > > being sent over the wire. > > This is what I get on the internal PBX when trying to remotely connect using > IAX protocol, by dialing extension 103. > > 16:17:29.382604 193.221.214.29.5036 > 192.168.33.99.5036: udp 121 (DF) [tos > 0x10] > 16:17:29.395536 192.168.33.99.5036 > 193.221.214.29.5036: udp 12 (DF) [tos > 0x10] > 16:17:29.396791 192.168.33.99.5036 > 193.221.214.29.5036: udp 30 (DF) [tos > 0x10] > 16:17:29.682915 193.221.214.29.5036 > 192.168.33.99.5036: udp 12 (DF) [tos > 0x10] > > 192.168.33.99 is the PBX behind NAT > 1933.221.214.29 is the PBX directly connected to the Internet > > so the packets goes to the right place, but then...nothing. > > Dan > > > > _______________________________________________ > Asterisk-Users mailing list > [EMAIL PROTECTED] > http://lists.digium.com/mailman/listinfo/asterisk-users > _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
