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>
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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
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