[Openswan Users] Upgrade to xl2tpd 1.2.6 breaks our setup

[alet at librelogiciel.com]

Hi,

after having upgraded our Debian Lenny+Squeeze (mix) openswan+xl2tpd
gateway, xl2tpd went from 1.2.5 (IIRC) to 1.2.6, and from then on,
everytime someone tried to connect the ppp connection would just die
immediately.

I've tried upgrading my Debian clients to the very same releases of both
openswan and xl2tpd, but no luck. In addition we've got MacOSX clients
which don't work anymore either. I haven't yet checked for Windows
client. Both NATed and not-NATed clients fail.

Since xl2tpd 1.2.5 doesn't seem to be avilable anymore from Debian's
repository, I've downgraded to 1.2.0 from Debian Lenny : all works fine
again, immediately.

Linux kernel is 2.6.26 on the VPN gateway, is it too old for xl2tpd
1.2.6 ?

It's important to note that when xl2tpd is 1.2.6 on the clients (with
kernel 2.6.32) but 1.2.0 is on the VPN gateway, the connection succeeds
and doesn't die.

It's only when 1.2.6 is installed on the gateway itself that all goes
wrong.

In all tests done no configuration file was changed, be it for openswan,
pppd, or xl2tpd : only xl2tpd's version changed.

Also, in all cases the IPsec SA was correctly established, so I think
openswan is OK.

Any idea of what could be causing this ? I can provide xl2tpd and pppd's
logs if needed.

bye

Jerome Alet