Icmp error - destination unreachable (port unreachable) - when SIP request is routed to freePBX

thanks danswartz - appreciate you reading that long story of mine!

here is the results of my port check

Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
udp 0 0 0.0.0.0:32768 0.0.0.0:* 2459/avahi-daemon:
udp 0 0 0.0.0.0:4520 0.0.0.0:* 2591/asterisk
udp 0 0 0.0.0.0:9001 0.0.0.0:* 2692/perl
udp 0 0 0.0.0.0:5060 0.0.0.0:* 2591/asterisk
udp 0 0 0.0.0.0:68 0.0.0.0:* 1811/dhclient
udp 0 0 0.0.0.0:69 0.0.0.0:* 2146/xinetd
udp 0 0 0.0.0.0:4569 0.0.0.0:* 2591/asterisk
udp 0 0 0.0.0.0:5353 0.0.0.0:* 2459/avahi-daemon:
udp 0 0 0.0.0.0:111 0.0.0.0:* 1953/portmap
udp 0 0 192.168.1.104:123 0.0.0.0:* 2164/ntpd
udp 0 0 127.0.0.1:123 0.0.0.0:* 2164/ntpd
udp 0 0 0.0.0.0:123 0.0.0.0:* 2164/ntpd
udp 0 0 :::32769 :::* 2459/avahi-daemon:
udp 0 0 :::5353 :::* 2459/avahi-daemon:
udp 0 0 fe80::20c:29ff:fe93:123 :::* 2164/ntpd
udp 0 0 ::1:123 :::* 2164/ntpd
udp 0 0 :::123 :::* 2164/ntpd

yes, you’re right - no udp port 5062 open - though 5060 is open??

how do i change port 5060 to ne 5062 or open up port 5062 - is this done at iptables level?

i have been trying to play about with iptables to add in these ports to no avail.

even stopped the iptables service

is there some other config/firewall rules i need to update - if so could you give us pointer on how to update this?

i’m very new to linux and the iptables are a bit baffling to us at the moment.

thank you very much!

p.s. sorry for posting twice, i didnlt realise the forums were all linked to a single view