Date: Thu, 4 May 2000 16:07:54 -0400 From: Brian Reichert <reichert@numachi.com> To: freebsd-mobile@freebsd.org, freebsd-isp@freebsd.org Subject: LinkSys NP100 vs the universe Message-ID: <20000504160754.A29902@numachi.com>
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This may not quite count as an update on my situation, but I have a few more datapoints. Quick recap: Problem machine is a Sony VAIO PCG-C1XS running FreeBSD-4.0-RELEASE. I have a LinkSys NP100 PCMCIA card (see <http://www.numachi.com/~reichert/laptop/PCMCIA/LinkSys%20NP100/>; for details.) The above does not reflect that Win98 see the MAC address as 00:e0:98:77:1a:b2. General symptom: The card _mostly_ works, in that only some kinds of hosts can it interact with in certain ways. I've come up with a fairly simple test environment, that illuminates things a little bit. On a hub, I have: - my primary desktop machine, a Dell running 3.4-RELEASE. It's interface: % ifconfig xl0 xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 inet 10.1.135.160 netmask 0xffff0000 broadcast 10.1.255.255 ether 00:50:04:7b:22:aa media: 100baseTX <half-duplex> supported media: autoselect 100baseTX <full-duplex> 100baseTX <half-duplex> 100baseTX 10baseT/UTP <full-duplex> 10baseT/UTP <half-duplex> 10baseT/UTP - and my problem laptop: % ifconfig ed0 ed0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 inet6 fe80::3d4:ffff:fe03:20%ed0 prefixlen 64 scopeid 0xa inet 10.1.135.250 netmask 0xffff0000 broadcast 10.1.255.255 ether 01:d4:ff:03:00:20 The laptop's was successfully configured via DHCP from the desktop. The laptop can ping the desktop. Both machine's arp tables (modulo 'permanent'): % arp -na ? (10.1.1.1) at 8:0:20:80:df:6a [ethernet] ? (10.1.1.10) at 8:0:20:85:bd:d7 [ethernet] ? (10.1.135.160) at 0:50:4:7b:22:aa permanent [ethernet] ? (10.1.135.250) at 1:d4:ff:3:0:20 [ethernet] The laptop can ping the desktop, and itself. The laptop can ssh into the desktop, and itself. (Both tests to itself were via 10.1.135.250, not 127.0.0.1, if that makes any difference.) On the laptop, using 'tcpdump -ni ed0 ether host 01:d4:ff:03:00:20': Trying to ping the laptop yields: tcpdump: listening on ed0 14:26:28.876328 10.1.135.160 > 10.1.135.250: icmp: echo request 14:26:29.876817 10.1.135.160 > 10.1.135.250: icmp: echo request 14:26:30.886790 10.1.135.160 > 10.1.135.250: icmp: echo request 14:26:31.896756 10.1.135.160 > 10.1.135.250: icmp: echo request 14:26:32.906724 10.1.135.160 > 10.1.135.250: icmp: echo request 14:26:33.916693 10.1.135.160 > 10.1.135.250: icmp: echo request 14:26:34.926665 10.1.135.160 > 10.1.135.250: icmp: echo request Trying to ssh into the laptop yields: tcpdump: listening on ed0 14:28:18.876206 10.1.135.160.1021 > 10.1.135.250.22: S 2531066914:2531066914(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 116811 0> (DF) 14:28:21.703686 10.1.135.160.1021 > 10.1.135.250.22: S 2531066914:2531066914(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 116816 0> (DF) 14:28:27.703524 10.1.135.160.1021 > 10.1.135.250.22: S 2531066914:2531066914(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 116828 0> (DF) 14:28:39.703184 10.1.135.160.1021 > 10.1.135.250.22: S 2531066914:2531066914(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 116852 0> (DF) After these experiments, netstat yields: % netstat -in -I ed0 Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll ed0 1500 <Link#10> 01:d4:ff:03:00:20 185090 66 2001 0 0 ed0 1500 fe80:a::3d4 fe80:a::3d4:ffff: 185090 66 2001 0 0 ed0 1500 10.1/16 10.1.135.250 185090 66 2001 0 0 I have experimented with: - setting the 'debug' flag of the ed driver - removing IPv6 from the kernel If I set # sysctl -w net.inet.icmp.bmcastecho=1 I can respond to pings, but nothing else. Cameron Slye <cslye@calweb.com>, noting the FBSD MAC address, said 'I think that's a multicast address :) No, it won't work..'. This utility was suggested: http://people.FreeBSD.org/~wpaul/mac.tar.gz but I don't know how to apply that to FBSD-4.0-R. I _can_ ssh to various hosts with this card, and hence can get some work done, but I've having a real rough time understanding these symptoms. Any advice is appreciated. I can dredge up more details as needed. -- Brian 'you Bastard' Reichert reichert@numachi.com 37 Crystal Ave. #303 Daytime number: (603) 434-6842 Derry NH 03038-1713 USA Intel architecture: the left-hand path To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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