Date: Sat, 6 Sep 2003 23:18:41 +0100 From: "Colin Watson" <sb.mailinglist@lambdabroadband.com> To: "Bruce M Simpson" <bms@spc.org>, <freebsd-net@freebsd.org> Subject: Re: Packet loss problem Message-ID: <012e01c374c4$d3d3a1e0$0b4e1151@blackbox> References: <002201c3749d$c8cf4460$0b4e1151@blackbox> <20030906212549.GP1417@spc.org>
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I don't believe so. We pay for a leased connection - so it's not supposed to be filtered. I'll have a dig around tho. One other question, is their any way to statically map an IP to a MAC (user who keeps chainging their IP when they shouldn't), but prevent them associating the MAC with any other IP? .Or am I gonna have to dig thru some ipfw rules ? Thanks Colin ----- Original Message ----- From: "Bruce M Simpson" <bms@spc.org> To: "Colin Watson" <sb.mailinglist@lambdabroadband.com> Cc: <freebsd-net@freebsd.org> Sent: Saturday, September 06, 2003 10:25 PM Subject: Re: Packet loss problem > On Sat, Sep 06, 2003 at 06:39:12PM +0100, Colin Watson wrote: > > / 33104 broadcast/multicast datagrams dropped due to no socket " which seems an inordinatly high amount. There are no drops due to full socket buffers, although I have recompiled the kernel with nmbclusters=8192 and Maxusers=1024 (to increase number of available sockets - kern.ipc.maxsockets to 9391), still the loss occurs. Any suggestions, and could someone explicitly explain what "broadcast/multicast datagrams dropped due to no socket" means. > > As Pete points out this unusually high 'no socket' figure could be due to > packets being received for a service you don't run. Beefing up the > number of PCBs you can have won't have any effect there if that is the case. > > Also it could be due to a socket application not binding to INADDR_ANY to > pick up undirected broadcasts (they don't get delivered to interface bound > ports). Of course this is probably not likely to affect your application > if you're explicitly unicasting traffic. But if you intend to receive > multicasts this could be the case. > > Are you filtering anything, or could your upstream be filtering anything? > > BMS > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >
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