Re: IPv6 L2TP issues related to 93531c67

2019-07-17 Thread Paul Donohue
On Wed, Jul 17, 2019 at 05:11:21AM -0600, David Ahern wrote: > This fixes the test script (whitespace damaged but simple enough to > manually patch). See if it fixes the problem with your more complex > setup. If so I will send a formal patch. Yes! I applied this on top of f632a8170a6b667ee4e3f552

Re: IPv6 L2TP issues related to 93531c67

2019-07-17 Thread David Ahern
On 7/16/19 7:56 AM, Paul Donohue wrote: > > Unfortunately, I have a fairly complicated setup, so it took me a while to > figure out which pieces were relevant ... But I think I've finally got it. > The missing piece was IPsec. > > After establishing an IPsec tunnel to carry the L2TP traffic, t

Re: IPv6 L2TP issues related to 93531c67

2019-07-16 Thread David Ahern
On 7/16/19 7:56 AM, Paul Donohue wrote: > After establishing an IPsec tunnel to carry the L2TP traffic, the first L2TP > packet through the IPsec tunnel permanently breaks the associated L2TP > tunnel. Tearing down the IPsec tunnel does not restore functionality of the > L2TP tunnel - I have to

Re: IPv6 L2TP issues related to 93531c67

2019-07-16 Thread Paul Donohue
On Mon, Jul 15, 2019 at 12:55:48PM -0600, David Ahern wrote: > As an FYI, gmail thinks your emails are spam. Ugh. Thanks for letting me know. I'll look into it. > On 7/15/19 10:18 AM, Paul Donohue wrote: > > Reverting commit 93531c6743157d7e8c5792f8ed1a57641149d62c (identified by > > bisection)

Re: IPv6 L2TP issues related to 93531c67

2019-07-15 Thread David Ahern
Hi Paul: As an FYI, gmail thinks your emails are spam. On 7/15/19 10:18 AM, Paul Donohue wrote: > I have a system that establishes four L2TP over IPv6 tunnels using site-local > addresses via the following: ... > > These tunnels worked fine on kernel 4.4. On kernel 4.15, there was a bug > th

IPv6 L2TP issues related to 93531c67

2019-07-15 Thread Paul Donohue
I have a system that establishes four L2TP over IPv6 tunnels using site-local addresses via the following: ip l2tp add tunnel tunnel_id 1233 peer_tunnel_id 1233 encap ip local fd23:2355:accd::2:4 remote fd23:2355:accd::2:3 ip l2tp add session name net_l2tp1 tunnel_id 1233 session_id 1233 peer_se