[pptp-server] gre protocol not available - help!

robert berzerke at swbell.net
Wed Apr 3 14:39:01 CST 2002


Did you actually compile gre as a module?  You must select it in your kernel 
configuration.

On Wednesday 03 April 2002 11:56 am, Örjan Johansson wrote:
> Hi all!
>
> After going through tons of problems I managed to get Win clients -
> Linux pptp server working thanks to help from list members. But now I
> think I'm losing my mind. I set up another box to verify the setup
> procedure, and guess what? No luck... Here's the setup:
>
> Redhat 7.2
> Recompiled 2.4.19-31 kernel patched with the mppe-patch and configured
> with all the ppp options
> ppp 2.4.1 patched with mppe
> pptpd 1.1.12
>
> Now when trying to connect I get GRE: read error: Protocol not
> available.
> I saw a post on the subject and the guy wrote that he solved it by
> loading ip_gre. He did not, however give any clue as to how he loaded
> it, and I thoght kernel compile would take care of it??? Here's what my
> modules.conf looks like:
> alias parport_lowlevel parport_pc
> alias eth0 3c59x
> alias eth1 3c59x
> alias usb-controller usb-uhci
> alias net-pf-47 ip_gre
> alias char-major-108 ppp_generic # This will be different for 2.3.x
> kernels
> alias tty-ldisc-3 ppp_async
> alias tty-ldisc-14 ppp_synctty
> alias ppp-compress-18 ppp_mppe
> alias ppp-compress-21 bsd_comp
> alias ppp-compress-24 ppp_deflate
> alias ppp-compress-26 ppp_deflate
> I added the ip_gre line myself in a vain attempt to solve the
> problem....
>
> Anyone out there who can clarify this and help me out? I'd sure
> appreciate it! Did I just screw up the config of my kernel or what?
>
> Any input appreciated!
>
> TIA,
> Orjan
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