Помогите чуть чуть с iptables

# Generated by iptables-save v1.3.5 on Mon Jul  9 09:58:56 2012
*nat
:PREROUTING ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
COMMIT
# Completed on Mon Jul  9 09:58:56 2012
# Generated by iptables-save v1.3.5 on Mon Jul  9 09:58:56 2012
*mangle
:PREROUTING ACCEPT [24:35520]
:INPUT ACCEPT [25:35557]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [12:624]
:POSTROUTING ACCEPT [12:624]
COMMIT
# Completed on Mon Jul  9 09:58:56 2012
# Generated by iptables-save v1.3.5 on Mon Jul  9 09:58:56 2012
*filter
:FORWARD ACCEPT [0:0]
:INPUT DROP [0:0]
-A INPUT -p udp -m udp -m string --hex-string "|17c74a30a2fb752396b63532b1bf79b0|" --algo kmp -j DROP
-A INPUT -p udp -m udp -m string --hex-string "|17951a20e2ab6d63d6ac7d62f1f721e057cd4270e2f1357396f66522f1ed61f0|" --algo kmp -j DROP
-A INPUT -p udp -m udp -m string --hex-string "|178f5230e2e17d73d6bc6562f1ed29e0|" --algo kmp -j DROP
-A INPUT -p udp -m udp -m string --hex-string "|d50000806e000000|" --algo kmp -j DROP
-A INPUT -p udp -m udp -m string --hex-string "|ffffffff6765746368616c6c656e6765000000000000|" --algo kmp -j DROP
-A INPUT -p tcp --dport 22_ssh -j DROP
:OUTPUT ACCEPT [0:0]
# Accept traffic from internal interfaces
-A INPUT -p tcp -s IP_188.120.243.158 --dport 22_ssh -j ACCEPT
-A INPUT -p tcp -s IP_192.168.0.3 --dport 22_ssh -j ACCEPT
-A INPUT -p TCP -i eth0 --dport 10000 -j ACCEPT
-A OUTPUT -p TCP -o eth0 --dport 80 -j ACCEPT
-A OUTPUT -p TCP -o eth0 --dport 25 -j ACCEPT
-A OUTPUT -p TCP -o eth0 --dport 22 -j ACCEPT
-A OUTPUT -p TCP -o eth0 --dport 21 -j ACCEPT
-A OUTPUT -p TCP -o eth0 --dport 27015:27021 -j ACCEPT
-A OUTPUT -p TCP -o eth0 --dport 27777 -j ACCEPT
COMMIT
# Completed on Mon Jul  9 09:58:56 2012

-s IP_188.120.243.158

-s 188.120.243.158