[Asterisk-Users] Re: IPTABLES Firewall

[CuPoTKa]

Matt wrote:
> I'll elaborate slightly more... the wiki says:
> 
> # SIP on UDP port 5060. Other SIP servers may need TCP port 5060 as well
> iptables -A INPUT -p udp -m udp --dport 5060 -j ACCEPT
> # IAX2- the IAX protocol
> iptables -A INPUT -p udp -m udp --dport 4569 -j ACCEPT
> # IAX - most have switched to IAX v2, or ought to
> iptables -A INPUT -p udp -m udp --dport 5036 -j ACCEPT
> # RTP - the media stream
> iptables -A INPUT -p udp -m udp --dport 10000:20000 -j ACCEPT
> # MGCP - if you use media gateway control protocol in your configuration
> iptables -A INPUT -p udp -m udp --dport 2727 -j ACCEPT 
> 
> 
> However.. I've seen phones connect on what appears to be ports OTHER
> then 5060.. example:
> 301/301          (Unspecified)    D          255.255.255.255  0       
> Unmonitored
> 300/300          (Unspecified)    D          255.255.255.255  0       
> Unmonitored
> 204/204          65.173.xx.xx     D          255.255.255.255  5060    
> Unmonitored
> 203/203          (Unspecified)    D          255.255.255.255  0       
> Unmonitored
> 202/202          63.174.xx.xx   D          255.255.255.255  5060     Unmonitored
> 201/201          65.173.xx.xx    D          255.255.255.255  18515   
> Unmonitored
> 200/200          (Unspecified)    D          255.255.255.255  0       
> Unmonitored
> 
> 
> So like extension 201 which is on 18515... is that going to still work?

They connect from port 18515 (or any port) to asterisk port 5060, so 
this rule
iptables -A INPUT -p udp -m udp --dport 5060 -j ACCEPT
is still OK