無法從遠端位置訪問 Asterisk sip

我已經使用本教程來配置我的 iptables，因此我可以從我的伺服器外部訪問星號 sip。

我的iptables -L長相是這樣的

Chain INPUT (policy ACCEPT)
target     prot opt source     destination
ACCEPT     all  --  anywhere   anywhere      state RELATED,ESTABLISHED
ACCEPT     icmp --  anywhere   anywhere
ACCEPT     all  --  anywhere   anywhere
ACCEPT     tcp  --  anywhere   anywhere      state NEW tcp dpt:ssh
REJECT     all  --  anywhere   anywhere      reject-with icmp-host-prohibited
ACCEPT     udp  --  anywhere   anywhere      udp dpt:sip
ACCEPT     udp  --  anywhere   anywhere      udp dpt:iax
ACCEPT     udp  --  anywhere   anywhere      udp dpt:5036
ACCEPT     udp  --  anywhere   anywhere      udp dpts:ndmp:dnp
ACCEPT     udp  --  anywhere   anywhere      udp dpt:mgcp-callagent

Chain FORWARD (policy ACCEPT)
target     prot opt source     destination
REJECT     all  --  anywhere   anywhere      reject-with icmp-host-prohibited

Chain OUTPUT (policy ACCEPT)
target     prot opt source     destination

現在，當 iptables 關閉時，我可以毫無問題地在 sip 客戶端上註冊，但是當它打開時，防火牆會阻止它。這個 iptables 配置有什麼問題，我應該怎麼做才能修復它？

您在鏈中有一條拒絕所有規則：

REJECT all -- anywhere anywhere reject-with icmp-host-prohibited

把它移到最後，你就準備好了。

引用自：https://serverfault.com/questions/582591