Hi,
Still having trouble with port-forwarding performance.
As much as I look I can't find anything wrong.
I have one Linux 66.283.12.21 box and one Windows box 192.168.0.10
I can download a file of the linux box at around 140K/s
That very same file on the Windows machine is around 15K/s using DNAT and Masq/Forwarding.
I'm very disappointed and did not expect to see anything like this, I had more like 10% in mind ...
The linux box is not under heavy load and there is only 431 connections being tracked.
Hmm .. I must have a problem else where, it just too hard to believe those download rate numbers.
Jose Maria Lopez Hernandez wrote:
El miÃ, 23-02-2005 a las 17:33 -0800, Rudi Starcevic escribiÃ:
Hi,
I have www port-forwarding setup and running OK.
However I wonder if they way I have configured it is not the most optimal for speed and performance.
I have a default policy of DROP with a total of about 30 rules.
These rules below do my www port-forwarding, can you see if there is a better way to do this ?
# ENABLE FORWARDING / NAT / MASQUERADING echo "1" > /proc/sys/net/ipv4/ip_forward
# NAT Forwarding Setup
$IPTABLES --table nat --append POSTROUTING --out-interface $ETH0 -j MASQUERADE
The only thing I can say about your rules it's that if you know the firewall IP it's much better to use SNAT than MASQUERADE, because you gain some speed with it.
$IPTABLES -A FORWARD -i $ETH1 -j ACCEPT $IPTABLES -A FORWARD -i $ETH0 -j ACCEPT $IPTABLES -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
# http Port-Forwarding setup
$IPTABLES -t nat -A PREROUTING -i $ETH0 -p tcp --dport 80 -d $MEDIA1_IP -j DNAT --to $MEDIA1_LO:80
The rule it's OK, I don't know how you can do it better to achieve more speed.
Many thanks,
Kind regards
Rudi
Regards.
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