troubles with ng_fec on -current

From: Marco Molteni (molter_at_tin.it)
Date: 11/02/05

  • Next message: John-Mark Gurney: "Re: troubles with ng_fec on -current" 
    Date: Wed, 2 Nov 2005 19:36:17 +0100
To: freebsd-net@freebsd.org

    Hi,

    I have the following setup:

    box1 box2 box3 box4
    xl0 xl0 xl0 ste0/ste1/ste2/ste3 -> fec0
    1.1.1.1 1.1.1.2 1.1.1.3 1.1.1.4
     | | | | | | |
     | | | | | | |
    ======================================== cisco catalyst switch

    Hosts box1,2,3,4 are running stock fbsd -current.

    box4 has a 4-port ethernet card (forgot brand, think d-link)
    recognized by the ste driver, without IP addresses. I then configure
    bonding on the ste0..3 interfaces with ng_fec, which gives me a fec0
    interface. I then configure fec0 with set_mode_mac and with IP address
    1.1.1.4.

    The switch is configured to perform etherchannel on the 4 ports
    connected to the ste0..4 interfaces. Load "balancing" is done
    on a per source MAC address.

    Problem is when I ping box4 from the other boxes. I get a reply only
    for ping from box1. I then ran tcpdump on the 4 ste interfaces.
    Things become to get interesting.

    If tcpdump is ran in non-promiscuos mode (-p option), only ping
    (and ARP) from box1 goes thru, as if I wasn't running tcpdump at all.
    If on the other hand tcpdump is ran in promiscuos mode, then all the
    pings go thru as expected.

    Am I doing something wrong in configuring the fec0 interface or is this
    a known problem? I think I don't need to add any IP address on the
    ste interfaces themselves.

    thanks
    marco 

    -- 
He who receives an idea from me, receives instruction himself
without lessening mine; as he who lights his taper at mine,
receives light without darkening me. -- Thomas Jefferson
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