Hi list!
Today I tried to change the NAT-configuration on my Firewall to use
another port for SIP.
I configured it so:
/sbin/iptables -t nat -A PREROUTING -p udp -m udp --dport 10000:10100
-j DNAT --to-destination 192.168.20.120
/sbin/iptables -t nat -A PREROUTING -p udp -m udp --dport <my new
port> -j DNAT --to-destination 192.168.20.120:5060
then, I tried to log on my Asterisk with my mobile phone.
It works. Great!
Then I tried to call an extension I created for the tests. This
extension just play a beep, record a message and play it back.
I hear the beep and I can speak my test message, then I can just hear
a couple of seconds of my message and I get this error:
[Jun 9 07:41:56] WARNING[19374] chan_sip.c: Retransmission timeout
reached on transmission 1ec8759e5160b42b92000629ec5e4771@10.102.46.147
for seqno 993 (Critical Response) -- See
https://wiki.asterisk.org/wiki/display/AST/SIP+Retransmissions
Packet timed out after 13569ms with no response
[Jun 9 07:41:56] WARNING[19374] chan_sip.c: Hanging up call
1ec8759e5160b42b92000629ec5e4771@10.102.46.147 - no reply to our
critical packet (see
https://wiki.asterisk.org/wiki/display/AST/SIP+Retransmissions).
I'm really not sure, what can be the problem, now...
I read the wiki page, but I can understand what is wrong now in a
configuration that works for days...
Have I to say Asterisk, that the NAT receive data from another port?
This is the only change in my configuration since yesterday, as all
worked...
Thanks
Luca Bertoncello
(lucab...@lucabert.de)
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