diff --git a/man7/tcp.7 b/man7/tcp.7 index 9776ef369..0876f956d 100644 --- a/man7/tcp.7 +++ b/man7/tcp.7 @@ -791,11 +791,14 @@ building larger TSO frames. .TP .IR tcp_tw_recycle " (Boolean; default: disabled; since Linux 2.4)" .\" Since 2.3.15 -Enable fast recycling of TIME_WAIT sockets. Enabling this option is +Enable fast recycling of TIME_WAIT sockets. +Enabling this option is not recommended for devices communicating with the general Internet -or using NAT (Network Address Translation). Since some NAT gateways +or using NAT (Network Address Translation). +Since some NAT gateways pass through IP timestamp values, one IP can appear to have -non-increasing timestamps. See RFC 1323 (PAWS), RFC 6191. +non-increasing timestamps. +See RFC 1323 (PAWS), RFC 6191. .\" .\" The following is from 2.6.12: Documentation/networking/ip-sysctl.txt .TP