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nat on Linux

Posted on 2000-05-15
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Last Modified: 2008-02-26
Hi !
I`m trying to use ipnatadm, in order to translate addresses on Linux. But when I type :
ipnatadm -O -i -S 192.168.0.57/32 -M 200.241.244.1/32

I receive the following error : setsockopt failed:protocol not available.

Do you know why it happens ?
Thanks !
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Question by:ptenuta
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4 Comments
 

Accepted Solution

by:
Debber earned 300 total points
ID: 2811223
Download and install the ip-masquerading and ipchains modules, enable ip-forwarding and insert ipchains-rules into rc.firewall I'd recommend Robert Ziegler's site (and book "Linux Firewalls", New Riders) More info on: http://linux-firewall-tools.com/linux/ Succes!

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Expert Comment

by:aramo
ID: 2812856
1st excellent ref to linux-firewall-tools by Debber - thank you. It even includes cook-book scriptes if you need them.

IPCHAINS-Howto & IP-Masquerading covers the topic well - as setup depends on kernel I suggest you read the Howtos or post more info.

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Expert Comment

by:Gnomus
ID: 2816451
check kernel for masquerading support
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Author Comment

by:ptenuta
ID: 2816894
I´ve made it with ipchains . Thank you very much !
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