Lagg + vlans



  • Hi,

    Today i was reinstalling my pfsense with the latest version (pfSense-2.0-BETA1-20091227-1613.iso).
    Im currently 4 hours into the process.

    I can get the machine up and running,
    i can assign a single interface and get dhcp and working routing.
    But when i put my intel dual gbit nic in an lagg and use vlans it won't work.
    This setup was running previously (i must add that was with freebsd 7 build)

    When i remove the vlans, and tell my switch to use LACP on 2 ports and untagged in an vlan everything works fine again.
    Except i need the vlans.

    I cannot get any error message to appear, i checked the switch (says lacp is ok), the syslog which 1 time said that ' lagg0_vlan1'  does not exist. but could not get the system to repeat that. And the firewall logs, which show some blocked traffic from the lagg0_vlan1 interface but i cannot generate these errors by trying to ping pfsense or something like that.

    Ok, i got some errors out of it:

    
    Dec 28 16:26:54 	kernel: em2: link state changed to DOWN
    Dec 28 16:26:54 	kernel: em3: link state changed to DOWN
    Dec 28 16:26:54 	kernel: lagg0: link state changed to DOWN
    Dec 28 16:26:54 	kernel: lagg0_vlan1: link state changed to DOWN
    Dec 28 16:26:54 	kernel: lagg0_vlan2: link state changed to DOWN
    Dec 28 16:26:54 	kernel: lagg0_vlan3: link state changed to DOWN
    Dec 28 16:27:17 	kernel: em2: link state changed to UP
    Dec 28 16:27:17 	kernel: lagg0: link state changed to UP
    Dec 28 16:27:17 	kernel: lagg0_vlan1: link state changed to UP
    Dec 28 16:27:17 	kernel: lagg0_vlan2: link state changed to UP
    Dec 28 16:27:17 	kernel: lagg0_vlan3: link state changed to UP
    Dec 28 16:27:17 	kernel: em3: link state changed to UP
    Dec 28 16:27:20 	check_reload_status: rc.linkup starting
    Dec 28 16:27:21 	php: : Hotplug event detected for opt1 but ignoring since interface is configured with static IP (172.16.10.254)
    Dec 28 16:27:52 	kernel: ifa_del_loopback_route: deletion failed
    Dec 28 16:27:56 	check_reload_status: syncing firewall
    Dec 28 16:28:10 	login: login on ttyv0 as root
    Dec 28 16:28:02 	check_reload_status: syncing firewall
    Dec 28 16:31:43 	php: /interfaces_vlan_edit.php: The command '/sbin/ifconfig lagg0 vlanhwtag' returned exit code '1', the output was 'ifconfig: vlanhwtag: Invalid argument'
    Dec 28 16:31:43 	php: /interfaces_vlan_edit.php: The command '/sbin/ifconfig lagg0 vlanmtu' returned exit code '1', the output was 'ifconfig: vlanmtu: Invalid argument'
    Dec 28 16:31:43 	php: /interfaces_vlan_edit.php: The command '/sbin/ifconfig lagg0 vlanhwfilter' returned exit code '1', the output was 'ifconfig: vlanhwfilter: Invalid argument'
    Dec 28 16:31:43 	kernel: vlan0: changing name to 'lagg0_vlan2'
    Dec 28 16:31:48 	check_reload_status: syncing firewall
    Dec 28 16:32:17 	php: /interfaces_vlan_edit.php: The command '/sbin/ifconfig lagg0 vlanhwtag' returned exit code '1', the output was 'ifconfig: vlanhwtag: Invalid argument'
    Dec 28 16:32:17 	php: /interfaces_vlan_edit.php: The command '/sbin/ifconfig lagg0 vlanmtu' returned exit code '1', the output was 'ifconfig: vlanmtu: Invalid argument'
    Dec 28 16:32:17 	php: /interfaces_vlan_edit.php: The command '/sbin/ifconfig lagg0 vlanhwfilter' returned exit code '1', the output was 'ifconfig: vlanhwfilter: Invalid argument'
    Dec 28 16:32:18 	kernel: vlan1: changing name to 'lagg0_vlan1'
    Dec 28 16:32:18 	check_reload_status: syncing firewall
    Dec 28 16:33:00 	php: /interfaces_assign.php: SYSTEM: We do not have a gateways array in our XML. Is this configuration damaged?
    Dec 28 16:33:02 	dnsmasq[15737]: exiting on receipt of SIGTERM
    Dec 28 16:33:03 	dnsmasq[19891]: started, version 2.51 cachesize 10000
    Dec 28 16:33:03 	dnsmasq[19891]: compile time options: no-IPv6 GNU-getopt no-DBus I18N DHCP TFTP
    Dec 28 16:33:03 	dnsmasq[19891]: reading /etc/resolv.conf
    Dec 28 16:33:03 	dnsmasq[19891]: using nameserver 62.212.65.123#53
    Dec 28 16:33:03 	dnsmasq[19891]: using nameserver 83.149.80.123#53
    Dec 28 16:33:03 	dnsmasq[19891]: using nameserver 85.17.96.69#53
    Dec 28 16:33:03 	dnsmasq[19891]: read /etc/hosts - 2 addresses
    Dec 28 16:33:04 	dhcpd: Internet Systems Consortium DHCP Server V3.0.7
    Dec 28 16:33:04 	dhcpd: Copyright 2004-2008 Internet Systems Consortium.
    Dec 28 16:33:04 	dhcpd: All rights reserved.
    Dec 28 16:33:04 	dhcpd: For info, please visit http://www.isc.org/sw/dhcp/
    Dec 28 16:33:04 	dhcpd: Multiple interfaces match the same subnet: lagg0 lagg0_vlan1
    Dec 28 16:33:04 	dhcpd: Multiple interfaces match the same shared network: lagg0 lagg0_vlan1
    Dec 28 16:33:04 	php: /interfaces_assign.php: Creating rrd update script
    Dec 28 16:33:04 	check_reload_status: reloading filter
    Dec 28 16:33:05 	check_reload_status: syncing firewall
    Dec 28 16:33:06 	check_reload_status: reloading interfaces
    Dec 28 16:33:07 	php: : WARNING: Recursive call to interfaces sync!
    Dec 28 16:33:12 	check_reload_status: reloading filter
    Dec 28 16:33:13 	check_reload_status: syncing firewall
    
    

    I produced them by adding and removing clans to lagg0

    I hope someone can tell me whats going on :-)

    Greetings, Marcus



  • Provide ifconfig command output, netstat -rn output.
    Your config.xml and your system log.



  • Ok,

    I created OPT1 for my laptop to stay in touch with pfsense when i make the vlan1 on lagg0.

    You requested:

    ifconfig

    
    # ifconfig
    em0: flags=8843 <up,broadcast,running,simplex,multicast>metric 0 mtu 1500
            options=9b <rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum>ether 00:0b:db:90:e6:6f
            inet6 fe80::20b:dbff:fe90:e66f%em0 prefixlen 64 scopeid 0x1
            inet 82.192.91.115 netmask 0xffffff00 broadcast 82.192.91.255
            inet 172.16.1.6 netmask 0xfffffff8 broadcast 172.16.1.7
            media: Ethernet autoselect (100baseTX <full-duplex>)
            status: active
    em1: flags=8843 <up,broadcast,running,simplex,multicast>metric 0 mtu 1500
            options=9b <rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum>ether 00:0b:db:90:e6:70
            inet6 fe80::20b:dbff:fe90:e670%em1 prefixlen 64 scopeid 0x2
            inet 172.16.50.254 netmask 0xffffff00 broadcast 172.16.50.255
            media: Ethernet autoselect (1000baseT <full-duplex>)
            status: active
    em2: flags=8843 <up,broadcast,running,simplex,multicast>metric 0 mtu 1500
            options=9b <rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum>ether 00:02:a5:4e:ac:ba
            inet6 fe80::202:a5ff:fe4e:acba%em2 prefixlen 64 scopeid 0x3
            media: Ethernet autoselect (1000baseT <full-duplex>)
            status: active
    em3: flags=8843 <up,broadcast,running,simplex,multicast>metric 0 mtu 1500
            options=9b <rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum>ether 00:02:a5:4e:ac:ba
            inet6 fe80::202:a5ff:fe4e:acbb%em3 prefixlen 64 scopeid 0x4
            media: Ethernet autoselect (1000baseT <full-duplex>)
            status: active
    lo0: flags=8049 <up,loopback,running,multicast>metric 0 mtu 16384
            options=3 <rxcsum,txcsum>inet6 ::1 prefixlen 128
            inet6 fe80::1%lo0 prefixlen 64 scopeid 0x5
            inet 127.0.0.1 netmask 0xff000000
    pfsync0: flags=0<> metric 0 mtu 1460
            syncpeer: 224.0.0.240 maxupd: 128
    pflog0: flags=100 <promisc>metric 0 mtu 33200
    enc0: flags=0<> metric 0 mtu 1536
    lagg0: flags=8843 <up,broadcast,running,simplex,multicast>metric 0 mtu 1500
            options=9b <rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum>ether 00:02:a5:4e:ac:ba
            inet6 fe80::202:a5ff:fe4e:acba%lagg0 prefixlen 64 scopeid 0x9
            inet 172.16.10.254 netmask 0xffffff00 broadcast 172.16.10.255
            media: Ethernet autoselect
            status: active
            laggproto lacp
            laggport: em3 flags=1c <active,collecting,distributing>laggport: em2 flags=1c <active,collecting,distributing>lagg0_vlan1: flags=8843 <up,broadcast,running,simplex,multicast>metric 0 mtu 1500
            options=3 <rxcsum,txcsum>ether 00:02:a5:4e:ac:ba
            inet6 fe80::20b:dbff:fe90:e66f%lagg0_vlan1 prefixlen 64 scopeid 0xa
            inet 172.16.10.254 netmask 0xffffff00 broadcast 172.16.10.255
            media: Ethernet autoselect
            status: active
            vlan: 1 parent interface: lagg0
    lagg0_vlan2: flags=8843 <up,broadcast,running,simplex,multicast>metric 0 mtu 1500
            options=3 <rxcsum,txcsum>ether 00:02:a5:4e:ac:ba
            inet6 fe80::20b:dbff:fe90:e66f%lagg0_vlan2 prefixlen 64 scopeid 0xb
            media: Ethernet autoselect
            status: active
            vlan: 2 parent interface: lagg0
    #</rxcsum,txcsum></up,broadcast,running,simplex,multicast></rxcsum,txcsum></up,broadcast,running,simplex,multicast></active,collecting,distributing></active,collecting,distributing></rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum></up,broadcast,running,simplex,multicast></promisc></rxcsum,txcsum></up,loopback,running,multicast></full-duplex></rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum></up,broadcast,running,simplex,multicast></full-duplex></rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum></up,broadcast,running,simplex,multicast></full-duplex></rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum></up,broadcast,running,simplex,multicast></full-duplex></rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum></up,broadcast,running,simplex,multicast> 
    

    netstat -rn

    
    # netstat -rn
    Routing tables
    
    Internet:
    Destination        Gateway            Flags    Refs      Use  Netif Expire
    default            82.192.91.254      UGS         1    16263    em0
    82.192.91.0/24     link#1             U           0        3    em0
    82.192.91.115      link#1             UHS         0        0    lo0
    127.0.0.1          link#5             UH          0        0    lo0
    127.0.0.2          127.0.0.1          UHS         0        0    lo0
    172.16.1.0/29      link#1             U           0        0    em0
    172.16.1.6         link#1             UHS         0        0    lo0
    172.16.10.0/24     link#9             U           2    34591  lagg0
    172.16.10.254      link#10            UHS         0        0    lo0
    172.16.50.0/24     link#2             U           2     4999    em1
    172.16.50.254      link#2             UHS         0        0    lo0
    
    Internet6:
    Destination                       Gateway                       Flags      Netif Expire
    ::1                               ::1                           UH          lo0
    fe80::%em0/64                     link#1                        U           em0
    fe80::20b:dbff:fe90:e66f%em0      link#1                        UHS         lo0
    fe80::%em1/64                     link#2                        U           em1
    fe80::20b:dbff:fe90:e670%em1      link#2                        UHS         lo0
    fe80::%em2/64                     link#3                        U           em2
    fe80::202:a5ff:fe4e:acba%em2      link#3                        UHS         lo0
    fe80::%em3/64                     link#4                        U           em3
    fe80::202:a5ff:fe4e:acbb%em3      link#4                        UHS         lo0
    fe80::%lo0/64                     link#5                        U           lo0
    fe80::1%lo0                       link#5                        UHS         lo0
    fe80::%lagg0/64                   link#9                        U         lagg0
    fe80::202:a5ff:fe4e:acba%lagg0    link#9                        UHS         lo0
    fe80::%lagg0_vlan1/64             link#10                       U      lagg0_vl
    fe80::20b:dbff:fe90:e66f%lagg0_vlan1 link#10                       UHS         lo0
    fe80::%lagg0_vlan2/64             link#11                       U      lagg0_vl
    fe80::20b:dbff:fe90:e66f%lagg0_vlan2 link#11                       UHS         lo0
    ff01:1::/32                       fe80::20b:dbff:fe90:e66f%em0  U           em0
    ff01:2::/32                       fe80::20b:dbff:fe90:e670%em1  U           em1
    ff01:3::/32                       fe80::202:a5ff:fe4e:acba%em2  U           em2
    ff01:4::/32                       fe80::202:a5ff:fe4e:acbb%em3  U           em3
    ff01:5::/32                       ::1                           U           lo0
    ff01:9::/32                       fe80::202:a5ff:fe4e:acba%lagg0 U         lagg0
    ff01:a::/32                       fe80::20b:dbff:fe90:e66f%lagg0_vlan1 U      lagg0_vl
    ff01:b::/32                       fe80::20b:dbff:fe90:e66f%lagg0_vlan2 U      lagg0_vl
    ff02::%em0/32                     fe80::20b:dbff:fe90:e66f%em0  U           em0
    ff02::%em1/32                     fe80::20b:dbff:fe90:e670%em1  U           em1
    ff02::%em2/32                     fe80::202:a5ff:fe4e:acba%em2  U           em2
    ff02::%em3/32                     fe80::202:a5ff:fe4e:acbb%em3  U           em3
    ff02::%lo0/32                     ::1                           U           lo0
    ff02::%lagg0/32                   fe80::202:a5ff:fe4e:acba%lagg0 U         lagg0
    ff02::%lagg0_vlan1/32             fe80::20b:dbff:fe90:e66f%lagg0_vlan1 U      lagg0_vl
    ff02::%lagg0_vlan2/32             fe80::20b:dbff:fe90:e66f%lagg0_vlan2 U      lagg0_vl
    #
    
    

    [edit] One second, ill attack the config and syslog. I had them pasted here, but they are gone now. [/edit]

    [edit2]
    Ok here they are, they are to large to attach, ill need to link:
    http://dump.marcusvandam.nl/ph!135/pfsense/config.xml
    http://dump.marcusvandam.nl/ph!135/pfsense/system.log
    [/edit2]

    I hope this helps.

    Hoping to hear from you guys, and kind regards.
    Marcus van Dam



  • 
    Dec 28 18:51:16 pfsense dhcpd: Multiple interfaces match the same subnet: lagg0 lagg0_vlan1
    Dec 28 18:51:16 pfsense dhcpd: Multiple interfaces match the same shared network: lagg0 lagg0_vlan1
    
    

    This seems to be your problem.



  • And how can that be?
    If you check my config, you will see that i switched it over to lagg0_vlan1. lagg0 is not used in this situation.

    Greets, Marcus



  • Looks like when you switched off lagg0 it didn't unassign that IP, I'll check into that. If you reboot is everything brought up correctly?



  • No, i am afraid not.
    It didn't after my upgrade and didn't after a fresh install.



  • I just tried to add a vlan on lagg0, no dhcp this time.
    Just a vlan, added an interface gave it the 172.16.20.254 ip.
    Now i still cant ping that address form a machine within that vlan.
    And again i get errors in syslog about ifconfig, and an interesting one, the mac change. the machine in vlan2 has 2 interfaces and 2 ips on the vlan, and pfsense notices the machine but does not respond to his ping. nor routes its traffic.

    I have here the syslog part and the netstat -rn:

    Syslog:

    
    Jan  1 17:01:45 pfsense php: /interfaces_vlan_edit.php: The command '/sbin/ifconfig lagg0 vlanhwtag' returned exit code '1', the output was 'ifconfig: vlanhwtag: Invalid argument'
    Jan  1 17:01:45 pfsense php: /interfaces_vlan_edit.php: The command '/sbin/ifconfig lagg0 vlanmtu' returned exit code '1', the output was 'ifconfig: vlanmtu: Invalid argument'
    Jan  1 17:01:45 pfsense php: /interfaces_vlan_edit.php: The command '/sbin/ifconfig lagg0 vlanhwfilter' returned exit code '1', the output was 'ifconfig: vlanhwfilter: Invalid argument'
    Jan  1 17:01:46 pfsense kernel: vlan0: changing name to 'lagg0_vlan2'
    Jan  1 17:01:48 pfsense check_reload_status: syncing firewall
    Jan  1 17:02:08 pfsense check_reload_status: syncing firewall
    Jan  1 17:02:10 pfsense php: /interfaces_assign.php: Creating rrd update script
    Jan  1 17:02:14 pfsense check_reload_status: syncing firewall
    Jan  1 17:02:20 pfsense check_reload_status: reloading filter
    Jan  1 17:02:21 pfsense check_reload_status: syncing firewall
    Jan  1 17:02:51 pfsense check_reload_status: syncing firewall
    Jan  1 17:02:53 pfsense apinger: Exiting on signal 15.
    Jan  1 17:02:53 pfsense apinger: Starting Alarm Pinger, apinger(32229)
    Jan  1 17:02:53 pfsense apinger: No usable targets found, exiting
    Jan  1 17:02:53 pfsense php: /interfaces.php: Creating rrd update script
    Jan  1 17:02:57 pfsense check_reload_status: reloading filter
    Jan  1 17:05:28 pfsense check_reload_status: syncing firewall
    Jan  1 17:05:34 pfsense check_reload_status: reloading filter
    Jan  1 17:07:23 pfsense kernel: arp: 172.16.20.161 moved from 00:0c:29:88:6a:e0 to 00:0c:29:88:6a:d6 on lagg0_vlan2
    Jan  1 17:07:48 pfsense sshd[34134]: Accepted keyboard-interactive/pam for root from 172.16.10.96 port 55486 ssh2
    
    

    netstat -rn:

    
    Routing tables
    
    Internet:
    Destination        Gateway            Flags    Refs      Use  Netif Expire
    default            82.192.91.254      UGS         2 24884628    em0
    82.192.91.0/24     link#1             U           0   337691    em0
    82.192.91.115      link#1             UHS         0        0    lo0
    127.0.0.1          link#5             UH          0       18    lo0
    127.0.0.2          127.0.0.1          UHS         0        0    lo0
    172.16.1.0/29      link#1             U           0        2    em0
    172.16.1.6         link#1             UHS         0        0    lo0
    172.16.10.0/24     link#9             U           5 42901917  lagg0
    172.16.10.254      link#9             UHS         0        0    lo0
    172.16.20.0/24     link#10            U           0        0 lagg0_
    172.16.20.254      link#10            UHS         0        0    lo0
    172.16.50.0/24     link#2             U           0     1562    em1
    172.16.50.254      link#2             UHS         0        0    lo0
    
    Internet6:
    Destination                       Gateway                       Flags      Netif Expire
    ::1                               ::1                           UH          lo0
    fe80::%em0/64                     link#1                        U           em0
    fe80::20b:dbff:fe90:e66f%em0      link#1                        UHS         lo0
    fe80::%em1/64                     link#2                        U           em1
    fe80::20b:dbff:fe90:e670%em1      link#2                        UHS         lo0
    fe80::%em2/64                     link#3                        U           em2
    fe80::202:a5ff:fe4e:acba%em2      link#3                        UHS         lo0
    fe80::%em3/64                     link#4                        U           em3
    fe80::202:a5ff:fe4e:acbb%em3      link#4                        UHS         lo0
    fe80::%lo0/64                     link#5                        U           lo0
    fe80::1%lo0                       link#5                        UHS         lo0
    fe80::%lagg0/64                   link#9                        U         lagg0
    fe80::202:a5ff:fe4e:acba%lagg0    link#9                        UHS         lo0
    fe80::%lagg0_vlan2/64             link#10                       U      lagg0_vl
    fe80::20b:dbff:fe90:e66f%lagg0_vlan2 link#10                       UHS         lo0
    ff01:1::/32                       fe80::20b:dbff:fe90:e66f%em0  U           em0
    ff01:2::/32                       fe80::20b:dbff:fe90:e670%em1  U           em1
    ff01:3::/32                       fe80::202:a5ff:fe4e:acba%em2  U           em2
    ff01:4::/32                       fe80::202:a5ff:fe4e:acbb%em3  U           em3
    ff01:5::/32                       ::1                           U           lo0
    ff01:9::/32                       fe80::202:a5ff:fe4e:acba%lagg0 U         lagg0
    ff01:a::/32                       fe80::20b:dbff:fe90:e66f%lagg0_vlan2 U      lagg0_vl
    ff02::%em0/32                     fe80::20b:dbff:fe90:e66f%em0  U           em0
    ff02::%em1/32                     fe80::20b:dbff:fe90:e670%em1  U           em1
    ff02::%em2/32                     fe80::202:a5ff:fe4e:acba%em2  U           em2
    ff02::%em3/32                     fe80::202:a5ff:fe4e:acbb%em3  U           em3
    ff02::%lo0/32                     ::1                           U           lo0
    ff02::%lagg0/32                   fe80::202:a5ff:fe4e:acba%lagg0 U         lagg0
    ff02::%lagg0_vlan2/32             fe80::20b:dbff:fe90:e66f%lagg0_vlan2 U      lagg0_vl
    
    

    [edit]
    the following line bothers me:

    172.16.20.0/24     link#10            U           0        0 lagg0_
    

    Shouldn't it be somethink more then lagg_ ?
    [/edit]

    I hope this sheds more light on the problem and someone can help me :-)

    Kind regards, Marcus



  • I know…. I should not bump.

    But now the vacation is over. I would bring the topic under the attention of the experts.
    I am trying t provide as much info as possible. I cannot be the only one with the problem ???

    Kind Regards, Marcus van Dam



  • See the same here. So I made a bug report http://redmine.pfsense.org/issues/show/296#change-829



  • Can you please edit interfaces.inc in /etc/inc and remove a line that has hwvlantag in it?!

    It should fix your problem.



  • Well, not really.
    I can create the vlan, and it shows up in ifconfig,
    But when i try to add an OPT2 interface and assign it to the vlan the webinterface hangs, the console still works until you press enter. You can press 8 to start and shell, but as soon as you run "ifconfig" the process freezes, you have to reboot with CRTL-ALT-DEL.

    I hope this helps.



  • I also found some interesting links about this problem:

    Same problem but then in the freebsd treads
    http://forums.freebsd.org/showthread.php?t=7668

    Kernel bug that might explain it al
    http://www.freebsd.org/cgi/query-pr.cgi?pr=141646



  • @ermal:

    Can you please edit interfaces.inc in /etc/inc and remove a line that has hwvlantag in it?!

    It should fix your problem.

    Deleting the line does not change anything, hw tagging are still shown on ifconfig. If I do ifconfig emX -vlanhwtag for every em nic I can get as fare as receiving a IP on my static failover trunk but even pinging the gateway fails.
    As DJ wrote freezing often happens when assigning nics.



  • I cannot seem to get an interface assigned with vlanhwtag turned off. It worked when turned on.
    Now it just crashes on every commando you give the machine after assigning.



  • Is everyone here trying using Intel em cards? Curious what driver(s) have issues, as that seems to be the cause.

    I did get lagg + VLAN trunk working fine with fxp cards, haven't had a chance to test em yet but will, as well as a few other NICs I have available.



  • @cmb:

    Is everyone here trying using Intel em cards? Curious what driver(s) have issues, as that seems to be the cause.

    I did get lagg + VLAN trunk working fine with fxp cards, haven't had a chance to test em yet but will, as well as a few other NICs I have available.

    I am using the Intel® PRO/1000 MT Dual Port Server Adapter (http://www.intel.com/products/server/adapters/pro1000mt-dualport/pro1000mt-dualport-overview.htm) in an Dell 1650 machine.
    unfortunately i do not have a second setup to test with different cards.

    It seems to be related to the em(4) driver.


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