Re: Solaris 7 installation is sending 127.0.0.0/8 addresses on the ethernet network...

From: Jan-Philip Velders (jpv@jpv.xs4all.nl)
Date: 11/28/02

  • Next message: Jon: "Re: Solaris 7 installation is sending 127.0.0.0/8 addresses on the ethernet network..."
    Date: Thu, 28 Nov 2002 12:34:16 +0100 (CET)
    From: Jan-Philip Velders <jpv@jpv.xs4all.nl>
    To: Michael Boman <michael.boman@securecirt.com>
    
    

    > Date: Tue, 26 Nov 2002 15:41:28 +0800
    > From: Michael Boman <michael.boman@securecirt.com>
    > To: focus-sun@securityfocus.com
    > Subject: Solaris 7 installation is sending 127.0.0.0/8 addresses on the
    > ethernet network...

    > # netstat -nr
    > Routing Table:
    > Destination Gateway Flags Ref Use Interface
    > -------------------- -------------------- ----- ----- ------ ---------
    > 172.20.123.0 172.20.123.24 U 3 31742 hme0
    > 224.0.0.0 172.20.123.24 U 3 0 hme0
    > default 172.20.123.1 UG 0 379177
    > 127.0.0.1 127.0.0.1 UH 0 84159 lo0

    Uhm... I think that you need to have 127.0.0.0/255.0.0.0 (or /8)
    routed via 127.0.0.1 and/or lo0... The *entire* 127.0.0.0/8 subnet is
    reserver for the loopback-interface, and is supposed to *never* be
    sent over interfaces which are external to a machine.

    On a side note, certain software uses this to have components listen
    on several IP's in the 127.0.0.0/8 net to use normal socket-io...

    Kind regards,
    JP Velders



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