feature or bug

[José Queiroz]

Are you using Network Manager? Or have you configured your clients using
"/etc/network/interfaces"?

2012/2/21 Zhe Yao <zheyao at cim.mcgill.ca>

> Hi All,
>
> We are running several machines, some of them are ubuntu 10.04 which
> has dhcp3-client (3.1.3), and others run ubuntu 11.10 which has
> isc-dhcp-client (4.1.1).
> We notice different behaviours between these two versions.
>
> When the dhcp server (from ISC as well) is offline for a while, the
> clients decide to give up trying to contact the server any more, they
> assign private ip addresses (169.254.*) to the network interfaces.
> After this happens, the dhcp client (3.1.3) on 10.04 is still running
> in the background, so as far as the server is back, new ip addresses
> are assigned from the server, and everything is back to normal.
> But for dhcp client (4.1.1) on 11.10, the client daemon suicides.
> Hence, even the server is back, the network interface stays with the
> private addresses until we have to manually invoke ifdown/ifup
> commands, which is impossible for remote management.
>
> We are wondering whether this is a feature or a bug.
> Any input appreciated.
>
> Best,
> Zhe Yao
> --------------
> Department of Electrical and Computer Engineering
> McGill University
> Montreal, QC, Canada
> H3A 2A7
>
> zhe.yao at mail.mcgill.ca
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