Re: SYN cookies: validity range

2017-06-06 Thread Eric Dumazet
On Wed, 2017-06-07 at 00:12 +0200, Juan José Echevarria wrote: > Hi, > > This is my first post, hope I'm not using the mailing list wrongly. > > As proposed in an old thread > (https://www.spinics.net/lists/netdev/msg329144.html), when we send > SYN cookies and then exit this mode, tcp_synq_no_re

SYN cookies: validity range

2017-06-06 Thread Juan José Echevarria
Hi, This is my first post, hope I'm not using the mailing list wrongly. As proposed in an old thread (https://www.spinics.net/lists/netdev/msg329144.html), when we send SYN cookies and then exit this mode, tcp_synq_no_recent_overflow() returns false if cookies are received until 2 minutes later (