Bug 19834 - Masquerading PPTP traffic?
Masquerading PPTP traffic?
Status: CLOSED CURRENTRELEASE
Product: Red Hat Linux
Classification: Retired
Component: kernel (Show other bugs)
7.0
i386 Linux
medium Severity medium
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Assigned To: Arjan van de Ven
Brian Brock
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Depends On:
Blocks:
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Reported: 2000-10-25 19:42 EDT by Simon Oldfield
Modified: 2008-08-01 12:22 EDT (History)
1 user (show)

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Doc Type: Bug Fix
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Last Closed: 2004-09-30 11:38:50 EDT
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Description Simon Oldfield 2000-10-25 19:42:51 EDT
Is there a problem masquerading PPTP traffic in the pre-built 2.2.16-22 
kernel supplied with RedHat 7.0?

I have successfully set up to masquerade other traffic (HTTP and FTP), but 
the PPTP masquerading (of a win2000 PPTP client) does not seem to work.  
If I dial my ISP directly from the PPTP client machine then the PPTP stuff 
all works a treat.

When I try and connect through my firewall (RedHat Linux 7.0) then it 
attempts to connect but fails.  I seem to be able to telnet through my 
firewall to port 1723 of the PPTP server, and using tcpdump I can see lots 
of stuff allegedly going through the firewall.
Comment 1 Graham Mainwaring 2000-12-18 21:29:47 EST
I think there is a problem. I had pptp masquerading working fine under patched 
6.2, but after upgrading to 7.0, all other things remaining the same, pptp 
masquerading via the RH7 default ip_masq_pptp module doesn't work.
Comment 2 Need Real Name 2001-04-03 15:53:55 EDT
http://www.impsec.org/linux/masquerade/ip_masq_vpn.html

states you need this patch:

ftp://ftp.rubyriver.com/pub/jhardin/masquerade/ip_masq_vpn-RH2.16-2.patch.gz

on 7.0.  Unfortunately I have been unable to recompile the kernel after 
applying this patch, but that could be unrelated!
Comment 3 Bugzilla owner 2004-09-30 11:38:50 EDT
Thanks for the bug report. However, Red Hat no longer maintains this version of
the product. Please upgrade to the latest version and open a new bug if the problem
persists.

The Fedora Legacy project (http://fedoralegacy.org/) maintains some older releases, 
and if you believe this bug is interesting to them, please report the problem in
the bug tracker at: http://bugzilla.fedora.us/

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