[22020] in North American Network Operators' Group
Re: identify hostname
daemon@ATHENA.MIT.EDU (Craig A. Huegen)
Wed Dec 2 18:02:17 1998
Date: Wed, 2 Dec 1998 14:34:08 -0800
From: "Craig A. Huegen" <chuegen@quadrunner.com>
To: Phillip Vandry <vandry@Mlink.NET>, Rusty Zickefoose <rusty@cw.net>
Cc: nanog@merit.edu
In-Reply-To: <199812021640.LAA21289@Iodine.Mlink.NET>; from Phillip Vandry on Wed, Dec 02, 1998 at 11:40:37AM -0500
On Wed, Dec 02, 1998 at 11:40:37AM -0500, Phillip Vandry wrote:
==>Don't forget that the original suggestion at the beginning of this thread
==>was that UUnet should filter broadcast addresses on their Cisco routers
==>because their Max TNT's couldn't do it, in other words take care of the
==>networks on which the TNT's sit.
Not that anyone follows the rules, but:
RFC 1812,
"Requirements for IP Version 4 Routers", Section 5.3.5, specifies:
---
A router [...] MUST have an option to
disable forwarding network-prefix-directed broadcasts.
---
That particular sentence is followed by another sentence which states
that directed-broadcast MUST default to on; obviously, the RFC
was written before the time of smurf attacks.
/cah
