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Old 09-26-2006, 01:14 AM   #1
snip128
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Registered: Jan 2004
Location: Delaware
Distribution: gentoo
Posts: 96

Rep: Reputation: 15
compiling iptables_nat into my kernel =/


i just can't figure out how to do it!

this box is running gentoo, with a 2.6.17 kernel

in make menuconfig, i've tried messing with the networking ==> networking options ==> network packet filtering section, but no matter how many times i try, i just can't seem to get it to work!

its been a while since i've touched linux, so im a bit rusty, but i used to use the following set of commands to enable nat to share my box's internet connection

Code:
modprobe iptable_nat
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
echo 1 > /proc/sys/net/ipv4/ip_forward
however, these commands fail because it cant find the module iptable_nat

Code:
localhost linux # modprobe iptable_nat
FATAL: Module iptable_nat not found.
localhost linux # iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
FATAL: Module ip_tables not found.
iptables v1.3.5: can't initialize iptables table `nat': iptables who? (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.
so, can you guys help me get this module up and running? >.< i hate using my router to distribute internet xD
 
Old 09-26-2006, 03:21 AM   #2
Samotnik
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Registered: Jun 2006
Location: Belarus
Distribution: Debian GNU/Linux testing/unstable
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Well, there no module ip_tables compiled in your kernel. You should recompile it with packet filtering options included.
 
Old 09-26-2006, 09:15 PM   #3
snip128
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Registered: Jan 2004
Location: Delaware
Distribution: gentoo
Posts: 96

Original Poster
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thats the problem im having (recompiling my kernel with packet filtering options)!

modprobe ip_tables works

modprobe iptable_nat does not!

i've tried enabling like everything in the networking options section involving packet filtering/iptables/nat, but i obviously keep missing something!

by the way, the last time i got this to work was on a 2.4 kernel (a preconfigured debian kernel)...

summary: i need to know how to configure my 2.6 kernel on gentoo to support iptables with packet filtering support (nat, in specific)... >.<

i'm not really sure what else to post, so if you you need any files/logs/whatever, just ask

thanx..
 
Old 09-26-2006, 09:45 PM   #4
snip128
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Registered: Jan 2004
Location: Delaware
Distribution: gentoo
Posts: 96

Original Poster
Rep: Reputation: 15
well, i just recompiled my kernel again and i got it! dunno what made this time different than my other futile attempts, but i have the module now *saves kernel config data* now i just gotta hope my forwarding will work
 
  


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