Re: 'Syncookies' feature effects to generate new ISN/random with RST happens 15 seconds delay.
Kindly respond about below query and let me know any info required.
Thanks and regards,
On Sat, Feb 3, 2018 at 7:17 PM, Brahmanand Reddy <[hidden email]>
> Dear Experts,
> Recently i observed in 11.0 FreeBsd Kernel. new ISN random generating
> every 15 seconds. RST not happens quickly.
> if disable net.inet.tcp.syncookies=0 on syscntrl.conf .. RST happens
> quickly and generate new ISN numnber for next SYN requests.
> https://github.com/freebsd/freebsd/blob/master/sys/ > netinet/tcp_syncache.c#L1882
> Could you please confirm its expected behavior about delay. have notified
> this issue, we have any patch please share.
> Thanks in Advance,