Creating Multiple Discard Interfaces

From: José María González (chema_at_cs.berkeley.edu)
Date: 03/10/05

  • Next message: Brooks Davis: "Re: Creating Multiple Discard Interfaces" 
    Date: Wed, 9 Mar 2005 16:18:25 -0800
To: freebsd-net@freebsd.org

    Hi,

    I'm trying to create several discard interfaces on 4.9-RELEASE, and I'm
    having 2 problems. This is what I see (comments started by //):

    # ifconfig -a
    de0: ...
    lo0: ...
    // these are my original interfaces

    # kldload if_disc

    # ifconfig -a
    de0: ...
    lo0: ...
    ds0: flags=8008<LOOPBACK,MULTICAST> mtu 65532
    // surprisingly enough, just loading the if_disc kernel module creates
    // the ds0 interface for me. Well, I can live with that.

    # ifconfig ds0 create
    ifconfig: SIOCIFCREATE: Invalid argument
    # ifconfig disc0 create
    ifconfig: SIOCIFCREATE: Invalid argument
    // This makes sens, as the ds0 interface is already created

    # ifconfig ds1 create
    ifconfig: SIOCIFCREATE: Invalid argument
    # ifconfig disc1 create
    ifconfig: SIOCIFCREATE: Invalid argument
    // 1st problem: How do I create ds1, ds2, etc.?

    // Now I want to get rid of the if_disc module
    # ifconfig ds0 down
    # ifconfig ds0 destroy
    ifconfig: SIOCIFDESTROY: Invalid argument
    #ifconfig disc0 destroy
    ifconfig: interface disc0 does not exist
    # kldunload -v -i 4
    Unloading if_disc.ko, id=4
    kldunload: can't unload file: Invalid argument
    // 2nd problem: How do I get rid of the if_disc module?

    Thanks for any help you can provide.
    -Chema

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  • Next message: Brooks Davis: "Re: Creating Multiple Discard Interfaces"

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