Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 03 Jun 2011 20:15:33 -0700
From:      Rudy <crapsh@monkeybrains.net>
To:        freebsd-net@freebsd.org
Subject:   Re: Production use of carp?
Message-ID:  <4DE9A355.5040503@monkeybrains.net>
In-Reply-To: <20110603011634.GA59971@icarus.home.lan>
References:  <20110602203940.GA80549@slowblink.com>	<20110603001036.5ad0ff8d@davenulle.org>	<2E31CF74-416A-4310-9102-FD0C86275D0E@itassistans.se> <20110603011634.GA59971@icarus.home.lan>

next in thread | previous in thread | raw e-mail | index | archive | help
On 06/02/2011 06:16 PM, Jeremy Chadwick wrote:
...
> Commercial-grade routers (read: Cisco, Juniper) all implement a form of
> ICMP prioritisation.  The router can (and will) discard/drop inbound
> ICMP packets directed at the router itself (e.g. a destination IP of the
> gateway) during high CPU utilisation.  Packets destined to a router
> itself (e.g. destination IP is the router) are handled very, very
> differently.
>
> This is why network engineers always recommend that when testing for
> network anomalies, the client (source IP) should attempt to speak to a
> web server, another box, whatever -- anything as long as it's not a
> router -- for its destination IP.

An easier solution: Use a freeBSD box as your router!  I *heart* Quagga.  ;)

Friday!

Rudy



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4DE9A355.5040503>