Bug 19834

Summary:	Masquerading PPTP traffic?
Product:	[Retired] Red Hat Linux	Reporter:	Simon Oldfield <simon.oldfield>
Component:	kernel	Assignee:	Arjan van de Ven <arjanv>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	7.0	CC:	graham
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2004-09-30 15:38:50 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Simon Oldfield 2000-10-25 23:42:51 UTC

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 2000-12-19 02:29:47 UTC

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 19:53:55 UTC

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 15:38:50 UTC

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/