Re: Other possible protection against RST/SYN attacks (was Re: TCP RST attack
From: Charles Swiger (cswiger_at_mac.com)
Date: Wed, 21 Apr 2004 16:35:41 -0400 To: Mike Tancsa <firstname.lastname@example.org>
On Apr 21, 2004, at 4:14 PM, Mike Tancsa wrote:
> What side effects if any are there? Why is the default 64 and not
> some other number like 255...
The default TTL gets decremented with every hop, which means that a
packet coming in with a TTL of 255 had to be sent by a directly
connected system. [ip_ttl is an octet, so it can't hold a larger TTL
value.] A packet with a TTL of 64 could have been many hops away.
-- -Chuck _______________________________________________ email@example.com mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-security To unsubscribe, send any mail to "firstname.lastname@example.org"