Re: bind() udp behavior 2.6.8.1

From: Adam Denenberg (adam_at_dberg.org)
Date: 12/15/04

  • Next message: Magnus Määttä: "Re: [patch] Real-Time Preemption, -RT-2.6.10-rc3-mm1-V0.7.33-0" 
    To: Doug McNaught <doug@mcnaught.org>
Date:	Wed, 15 Dec 2004 15:48:50 -0500

    but this would be an issue with glibc then correct?

    On Wed, 2004-12-15 at 15:45, Doug McNaught wrote:
    > Adam Denenberg <adam@dberg.org> writes:
    >
    > > sorry for any confusion, but i am not referring to the Identification
    > > field in the IP header but rather the "Transaction ID" field in the DNS
    > > query portion of the packet. I can reproduce this behavior on our linux
    > > system where if i pump gethostbyname_r requests on the system at some
    > > point it will reuse a transaction id in the DNS request. This is my
    > > lastest discovery in what is causing the requests to fail thru the
    > > firewall. So far my research has not turned up any reason as to why the
    > > kernel would be re-using a transaction ID in the dns request.
    >
    > That would be your DNS software reusing the transaction ID, since it's
    > part of the packet data, not the UDP header. The kernel has nothing
    > to do with it.
    >
    > -Doug
    >

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