Remove the unspecified gateway from linux routing table

Eugène Ngontang sympavali at
Wed Feb 18 14:56:23 UTC 2015

Hi guys,

Thanks for your answer. I'll check all the ways you recommended to me.

Eugène NG

2015-02-17 22:13 GMT+01:00 Alex Bligh <alex at>:

> On 17 Feb 2015, at 10:43, Eugène Ngontang <sympavali at> wrote:
> >     [root at hostname]# route -n
> Nothing to do with dhcpd, but in debugging weird Linux route config
> problems,
> I strongly recommend you to use the "ip route" command (rather than the
> "route" command) if your distro supports it. You get shown (and can
> manipulate)
> all sorts of stuff the legacy interface does not provide.
> Are you doing anything strange like pxebooting these hosts? If so, it's
> possible
> to gpxeboot to add the default route to the command line (check
>    cat /proc/cmdline
> to see if it's there), which some distros then stick in the routing table,
> in turn causing some DHCP issues.
> Further, I suggest you check the obvious (i.e. no other interface stanzas
> have
> a static default route with gateway, and that you aren't running
> dhcp
> on anything you don't mean to be running dhcp on (i.e. aren't getting dhcp
> from any other interfaces).
> --
> Alex Bligh
> _______________________________________________
> dhcp-users mailing list
> dhcp-users at

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