Date: Wed, 21 Apr 2004 16:35:41 -0400 From: Charles Swiger <cswiger@mac.com> To: Mike Tancsa <mike@sentex.net> Cc: freebsd-security@freebsd.org Subject: Re: Other possible protection against RST/SYN attacks (was Re: TCP RST attack Message-ID: <75226E9B-93D3-11D8-90F9-003065ABFD92@mac.com> In-Reply-To: <6.0.3.0.0.20040421161217.05453308@209.112.4.2> References: <6.0.3.0.0.20040420125557.06b10d48@209.112.4.2> <xzp65buh5fa.fsf@dwp.des.no> <6.0.3.0.0.20040420144001.0723ab80@209.112.4.2> <200404201332.40827.dr@kyx.net> <20040421111003.GB19640@lum.celabo.org> <6.0.3.0.0.20040421121715.04547510@209.112.4.2> <20040421165454.GB20049@lum.celabo.org> <6.0.3.0.0.20040421132605.0901bb40@209.112.4.2> <48FCF8AA-93CF-11D8-9C50-000393C94468@sarenet.es> <6.0.3.0.0.20040421161217.05453308@209.112.4.2>
next in thread | previous in thread | raw e-mail | index | archive | help
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
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?75226E9B-93D3-11D8-90F9-003065ABFD92>