From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: From: erik quanstrom Date: Mon, 14 Jan 2008 19:50:38 -0500 To: 9fans@cse.psu.edu Subject: Re: [9fans] ip bug? In-Reply-To: <20080115000239.A5DA21E8C1C@holo.morphisms.net> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Topicbox-Message-UUID: 2e699d76-ead3-11e9-9d60-3106f5b1d025 On Mon Jan 14 19:03:58 EST 2008, rsc@swtch.com wrote: > > now if i > > > > ; ip/ping /net.alt/icmp!12.51.113.7!0 > > > > i usually get one packet back and snoopy reports > > there are surely more packets than that. > for example, where are the arp packets that initially > discover that 12.51.113.7 is 0030488ef4fb? > > i suspect that the machine is sending out an arp request > for 12.51.113.7 and getting back responses both from > the actual 12.51.113.7 as well as the 65 gateway. > the 65 gateway responds a little bit later, so that you > manage to get one ping off between getting the first > response and the second response. if this is the case, > then your 65 gateway is wrong. your diagnosis is excellent as usual. this is exactly the case. i have no access yet to the 65 gateway so it's hard telling what it's problem is. it does not do the same thing to other 12 addresses. - erik