[CUWiN-Dev] Re: Routing Table Failures

John Atkinson john.atkinson at gmail.com
Wed Nov 23 05:12:14 CST 2005


For about a week now we've been using the reboot method to restore the
network when routes are lost from the routing tables.  It works everytime.
I'm using a later version of 0.5.8, is anyone experiencing this phenomena in
0.5.9?

On 11/17/05, John Atkinson <john.atkinson at gmail.com> wrote:
>
> It seems that my routing tables are not updating fast enough, or they are
> not accurate.
>
> My setup for this test is as so:
>
> Node1 ------ Node2 ------ Node3
>
> Where Node2 has to be present for Node1 and Node3 to communicate.
>
> Node1 is the sole Internet-connected node.  From Node1 I can ping Node2
> but not Node3.  But from Node1 I can ssh into Node2 and then ping or ssh
> into Node3.  So from Node1 I can ssh into Node2 and then into Node3, but
> once in Node3 I can't ping the Internet or Node1, only Node2.
>
> Five minutes later the routing tables will be updated, and Node 3 will
> have Internet access just fine.  Then five minutes later it drops again.
>
> So the communication is always there, but the routing tables don't reflect
> that.  It seems like they are dropping routes (that might go down for a
> moment (trees, interference, etc)) and then not picking them back up as soon
> as they come up again.  It also seems like there is something going on at
> boot time which clarifies the routing tables; whenever I reboot the system
> works perfectly.
>
> This is causing Internet to come in and out in waves for nodes that have
> to communicate via a third party node to get to the Internet source.  The
> only sure way to get communication is to reset a node.  Something about
> rebooting it causes it to communicate perfectly for some time.
>
> There were similar things happening in 0.5.7 and 0.5.8, but I attributed
> them to bad power and the cyclical rebooting feature.
>
> Regards,
>
> John Atkinson
> WirelessGhana.com
>
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