Collision on NIC

[Erwane Breton]

Hi,

Few weeks ago, i discovered i have collision on my NIC for my Adsl ethernet modem (ed0). After research i found the other FreeBSD box i used, have same problem.

Take a look.

On my FreeBSD box
Network interface status:
Name    Mtu Network       Address              Ipkts Ierrs     Ibytes    Opkts Oerrs     Obytes  Coll
ed0    1500 <Link#1>      00:00:b4:bc:f0:b6  21852457  0  280187344 28530965     7 3906410421  8584
ed0    1500 10/24         10.0.0.254              8       -        384       13     -        632     -
xl0    1500 <Link#2>      00:50:da:4c:ed:c5  9470610  6 2735351753 13266752     0 2582350504     0
xl0    1500 10.1.1/24     10.1.1.254              6212939  - 2395538679  8600799     - 1389994967     -
lo0   16384 <Link#3>                                513933   0  106611959   513933     0  106611959     0
lo0   16384 your-net      localhost               358554    -   78001172   358554     -   78001172     -
tun0   1492 <Link#4>                                21878874  0 4108172057 28557467     0 3406988782     0
tun0   1492 start-213-41- xxxxxxxxx           192029      -   92763765   380021     -   60316512     -

Lot of collisions (for 10 days uptime)

# ifconfig
ed0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        inet 10.0.0.254 netmask 0xffffff00 broadcast 10.0.0.255
        ether 00:00:b4:bc:f0:b6
xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=3<RXCSUM,TXCSUM>
        inet 10.1.1.254 netmask 0xffffff00 broadcast 10.1.1.255
        ether 00:50:da:4c:ed:c5
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
        inet 127.0.0.1 netmask 0xff000000
tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1492
        inet xxx.xxx.xxx.xxx --> xx.xx.xx.xx netmask 0xffffff00
        Opened by PID 20935


# netstat -rn
Routing tables

Internet:
Destination        Gateway            Flags    Refs      Use  Netif Expire
default            62.4.16.251        UGSc      153    44612   tun0
10/24              link#1             UC          1        0    ed0
10.0.0.254         00:00:b4:bc:f0:b6  UHLW        0       14    lo0
10.1.1/24          link#2             UC          3        0    xl0
10.1.1.10          00:10:b5:ae:06:da  UHLW       10 11844185    xl0    862
10.1.1.254         00:50:da:4c:ed:c5  UHLW       12   162524    lo0
10.1.1.255         ff:ff:ff:ff:ff:ff  UHLWb       2     4610    xl0
62.4.16.251        213.41.144.146     UH        151     3820   tun0
127.0.0.1          127.0.0.1          UH          3   410587    lo0

All this route is generate BY FreeBSD. I haven't change anything

I think the problem came from here. I have route to 10/24 use ed0 or my network (where other pc is connected (10.1.1.0) is on xl0.
Maybe not come from here, i don't know.

If someone have idea or same problem, and solution :)

Thanks

Erwan
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