<span class="gmail_quote"></span>
<div>When I run iptables and open TCP/UDP dport 5060, SER cannot send 200 OK to UAC. What's wrong with my iptables config? following is iptables config under RHEL 4.4</div>
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<div>*filter<br>:INPUT ACCEPT [0:0]<br>:FORWARD ACCEPT [0:0]<br>:OUTPUT ACCEPT [0:0]<br>:RH-Firewall-1-INPUT - [0:0]<br>-A INPUT -j RH-Firewall-1-INPUT<br>-A FORWARD -j RH-Firewall-1-INPUT<br>-A RH-Firewall-1-INPUT -i lo -j ACCEPT
<br>-A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT<br>-A RH-Firewall-1-INPUT -p 50 -j ACCEPT<br>-A RH-Firewall-1-INPUT -p 51 -j ACCEPT<br>-A RH-Firewall-1-INPUT -p udp --dport 5353 -d <a onclick="return top.js.OpenExtLink(window,event,this)" href="http://224.0.0.251/" target="_blank">
224.0.0.251</a> -j ACCEPT<br>-A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT<br>-A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT<br>-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
<br>-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT<br>-A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited<br>-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 5060 -j ACCEPT
<br>-A RH-Firewall-1-INPUT -m state --state NEW -m udp -p udp --dport 5060 -j ACCEPT<br>COMMIT<br>-- <br>aRES iN aNYWhere </div>