Performance Problems with iptables

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Hello!

I am using a combination of iproute2 (source based routing) and iptables
(NAT Iptables Version 1.2.6a-5). The problem is that I have big
performance problems. The maximum download speed per user is about 5kb.
We can only use our existing line to the ISP by about 20%, and thats not
an ISP problem.

Need help!

IPRoute Config:
ip rule add from 10.0.0.0/8 table chello1
ip route add feault via 192.168.158.101 table chello1

ip rule add from 193.170.8.133 table chello1
ip rule add from 193.170.8.134 table chello1
ip route flush cash

NAT Config:
iptables -t nat -A POSTROUTING -p ip -s 10.0.0.0/8 -j SNAT --to
212.17.100.114
iptables -t nat -A POSTROUTING -p ip -s 193.170.8.133 -j SNAT --to
212.17.100.115
iptables -t nat -A POSTROUTING -p ip -s 193.170.8.133 -j SNAT --to
212.17.100.116

Thanks
Berndt

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