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7.1 VPN Masquerading

Posted on 2002-06-21
Medium Priority
Last Modified: 2013-12-16
I just finished a successful setup of my linux router using RH 7.1 with IP Masquerading working. Everything works fine except for my VPN connections (Using two different Kinds PPTP and IPSEC).

All the research I can find on the net talks about having to patch the kernel but most of it has to do with kernel releases 2.0 and 2.2

(Uname is reporting...  2.4.9-34, I am assuming this is my kernel level)

Can someone shed some light on this? Will I need to do kernel surgery to make this work? Perhaps someone could point me in the right direction for information about this procedure for my kernel release.

Oh, Yeah I forgot to note that I am using a script from the net that uses ipchains to implement ip Masq. Don't know much about how that work but know it works...

Question by:jkb2
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Accepted Solution

Zook earned 200 total points
ID: 7098993
No idea about RH, but the name of the ipsec package is FreeS/WAN (www.freeswan.org).

Many Distributions have FreeS/WAN included, as an american distribution RH might not due to US encryption export regulations!? Check your package manager to find out.

Anyway, on the site you find the documentation. It includes detailed steps on what to do if your distribution doesn't support FreeS/WAN, that is how to compile a new kernel and install the software.

If RH does support FreeS/WAN you can skip right to configuration.

Hope this helps.

Assisted Solution

mikeyman earned 200 total points
ID: 7109470
FreeS/WAN requires you to place the source files in the /usr/src area and recompile the kernel. Once done, however it works very nicely.  I know for certain FreeS/WAN did not ship with RH 7.1, and as of RH 7.3 that hasn't changed. FreeS/WAN is pretty well documented, so if you know how to recompile the kernel this should go well for you.

Expert Comment

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