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Topic: Request for MPPE patch to kernel< Next Oldest | Next Newest >
WDef Offline





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Posted: Aug. 06 2008,21:18 QUOTE

Hi Robert

Wondering if it would be possible on your next rebuild of the 2.4.31 kernel  to apply the MPPE/MPPC kernel module patch for this kernel from

http://mppe-mppc.alphacron.de/

I can't see standalone sources for this module on that site.

This should allow VPN clients using PPTP (such as PPTPClient) to work on dsl: http://pptpclient.sourceforge.net/#download

Otherwise, short of compiling the kernel and remastering, I'll have to boot Puppy or Fedora or something to access a necessary VPN :=(

(On tinycore this shouldn't be needed since this module has already been merged with the mainline 2.6 kernel, though it might need to be enabled in the config).
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curaga Offline





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Posted: Aug. 07 2008,10:32 QUOTE

Why wouldn't you just build the module and create an extension? It wouldn't require building the whole kernel.

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roberts Offline





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Posted: Aug. 07 2008,16:18 QUOTE

I agree, a Microsoft only protocol, and one that I would not be able to test ( I do not own nor use any Microsoft product ) would be better off as a module. An extension for those who do need this capability would be a better approach.
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WDef Offline





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Posted: Aug. 07 2008,16:56 QUOTE

Point taken.

It doesn't require testing with any MS product locally however - this protocol is used by VPNs using PPTP (seems to be most of them now) and this module is now part of the 2.6 kernel as I said.

Curaga: I think it may require a kernel rebuild since the patch and instructions seem to change more than one kernel configuration - if these are not different to dsl's default config and no other part of the tree get changed then I suppose it can be built standalone and inserted safely into the stock dsl kernel.   But instructions rightly say to rebuild the kernel to avoid any possible mismatch.  An exception is something like loopaes (in the specific case of dsl) where no alteration to dsl's .config is necessary since it already has the loop driver as a module.  

A different-enough .config might be sufficient reason on its own not to include it in base dsl however.
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WDef Offline





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Posted: Aug. 08 2008,23:11 QUOTE

I've patched and recompiled the kernel, and built the user space utils (ppp of an appropriate version and the current pptp-1.7.2.

The modules do insert into dsl's running kernel, but pptpsetup throws an error "can't locate module ppp-compress-18" and "couldn't find MPPE support in kernel".

So I think I may have been right - I'll have to swap out dsl's kernel for the patched kernel to get the mppe module working correctly.

EDIT: Maybe not.  If I add this to /etc/modules.conf:

alias ppp-compress-18 ppp_mppe_mppc

this error goes away.
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