Date: Sat, 3 Jan 2009 16:33:50 -0500 From: "maddaemon@gmail.com" <maddaemon@gmail.com> To: "Stefan Miklosovic" <miklosovic.freebsd@gmail.com>, freebsd-questions@freebsd.org Subject: Re: two ethernet cards Message-ID: <6c1774c50901031333t118c88dbqa2c7846dba730689@mail.gmail.com> In-Reply-To: <6.0.0.22.2.20090103142240.0260e638@mail.computinginnovations.com> References: <f99a79ec0901021621i7024dc3dxc0c23ea173de1482@mail.gmail.com> <6.0.0.22.2.20090103142240.0260e638@mail.computinginnovations.com>
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On Sat, Jan 3, 2009 at 3:24 PM, Derek Ragona <derek@computinginnovations.com> wrote: > At 06:21 PM 1/2/2009, Stefan Miklosovic wrote: >> >> hi >> >> i have two ethernet cards on my box >> >> uname -a >> FreeBSD dexter 7.0-RELEASE Freebsd 7.0-RELEASE #5: Fri Jan 2 21:25:21 >> CET >> 2009 root@dexter:/usr/obj/usr/src/sys/DEXTER i386 >> >> ifconfig >> rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 >> options=8<VLAN_MTU> >> ether XX:XX:XX:XX:XX:XX >> inet 192.168.0.177 netmask 0xffffff00 broadcast 192.168.0.255 >> media: Ethernet 100baseTX >> status: active >> sk0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 >> options=b<RXCSUM,TXCSUM,VLAN_MTU> >> ether XX:XX:XX:XX:XX:XX >> inet 192.168.0.176 netmask 0xffffff00 broadcast 192.168.0.255 >> media: Ethernet 100baseTX (100baseTX <full-duplex>) >> status: active >> lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384 >> inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3 >> inet6 ::1 prefixlen 128 >> inet 127.0.0.1 netmask 0xff000000 >> >> when I want to ping sk0 from eth0 on linux box, ping is ok, but this >> message >> appears to me in freebsd console >> >> Jan 3 01:07:39 dexter kernel: arp: 192.168.0.2 is on rl0 but got reply >> from >> XX:XX:XX:XX:XX:XX on sk0 >> >> linux command >> ping -I eth0 192.168.0.176 >> >> linux ifconfig >> >> eth0 Link encap:Ethernet HWaddr XX:XX:XX:XX:XX >> inet addr:192.168.0.2 Bcast:192.168.0.255 Mask:255.255.255.0 >> inet6 addr: fe80::20a:e4ff:fef3:abb6/64 Scope:Link >> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 >> RX packets:3 errors:0 dropped:0 overruns:0 frame:0 >> TX packets:88 errors:0 dropped:0 overruns:0 carrier:0 >> collisions:0 txqueuelen:1000 >> RX bytes:180 (180.0 B) TX bytes:11542 (11.2 KB) >> Interrupt:22 Base address:0x3000 >> >> lo Link encap:Local Loopback >> inet addr:127.0.0.1 Mask:255.0.0.0 >> inet6 addr: ::1/128 Scope:Host >> UP LOOPBACK RUNNING MTU:16436 Metric:1 >> RX packets:416 errors:0 dropped:0 overruns:0 frame:0 >> TX packets:416 errors:0 dropped:0 overruns:0 carrier:0 >> collisions:0 txqueuelen:0 >> RX bytes:25130 (24.5 KB) TX bytes:25130 (24.5 KB) >> >> wlan0 Link encap:Ethernet HWaddr XX:XX:XX:XX:XX:XX >> inet addr:192.168.0.173 Bcast:192.168.0.255 Mask:255.255.255.0 >> inet6 addr: fe80::214:a4ff:fe79:3cbc/64 Scope:Link >> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 >> RX packets:30030 errors:0 dropped:0 overruns:0 frame:0 >> TX packets:25399 errors:0 dropped:0 overruns:0 carrier:0 >> collisions:0 txqueuelen:1000 >> RX bytes:32882410 (31.3 MB) TX bytes:3522346 (3.3 MB) >> >> mac adres from eth0 on linux machine is same as from the error output on >> bsd >> >> >> >> thank you a lot >> >> stewe > > With two NIC's in the same system they need to be on separate and discrete > subnets. If these are put into a dumb switch, you will still get arp > errors. You need to connect each NIC to a separate network or VLAN. > > -Derek I disagree. I have numerous boxen with dual NICs that are on the same subnet/VLAN. OOC, why do you state they "need" to be on different subnets?
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