On Wed, May 10, 2023 at 01:17:05PM +1000, David Diggles wrote:
>
> Just to update, I've added the following to dhclient.conf but
> it's still renewing every 5 minutes (approximately) and the
> default route is disappearing for a couple of seconds. :(
>
> send dhcp-lease-time 86400;
dhcpleased does not use dhclient.conf, it used dhcpleased.conf, which
does not have a way to influence the lease time requested (if that is a
thing).
-Otto
>
> On Wed, May 10, 2023 at 01:00:00PM +1000, David Diggles wrote:
> > My ISP provides connection via DHCP.
> >
> > Every 5 minutes or so when dhcpleased is renewing the lease,
> > my default route disappears for a few seconds.
> >
> > Definitely I'll be looking at requesting a longer lease by
> > putting a setting in /etc/dhclient.conf but is there any way
> > I can stop the default route disappearing with each renew event?
> >
> > The route didn't disappear when I tested with NetBSD and Linux.
> >
> > This seems like I'm missing a setting in dhclient.conf to make
> > the default route sticky? I can't see any obvious answers in
> > the man page for dhclient.conf unfortunately.
> >
> > (IP fudged log snippet below)
> >
> > May 10 12:23:21 openbsd-gateway dhcpleased[77979]: deleting nameservers
> > x.x.x.x x.x.x.x (lease from x.x.x.1 on cnmac2)
> > May 10 12:23:21 openbsd-gateway dhcpleased[77979]: deleting x.x.x.30 from
> > cnmac2 (lease from x.x.x.1)
> > May 10 12:23:23 openbsd-gateway dhcpleased[77979]: adding x.x.x.30 to
> > cnmac2 (lease from x.x.x.1)
> > May 10 12:23:23 openbsd-gateway dhcpleased[77979]: adding nameservers
> > x.x.x.x x.x.x.x (lease from x.x.x.1 on cnmac2)
> > May 10 12:28:23 openbsd-gateway dhcpleased[77979]: deleting nameservers
> > x.x.x.x x.x.x.x (lease from x.x.x.1 on cnmac2)
> > May 10 12:28:23 openbsd-gateway dhcpleased[77979]: deleting x.x.x.30 from
> > cnmac2 (lease from x.x.x.1)
> > May 10 12:28:25 openbsd-gateway dhcpleased[77979]: adding x.x.x.30 to
> > cnmac2 (lease from x.x.x.1)
> > May 10 12:28:25 openbsd-gateway dhcpleased[77979]: adding nameservers
> > x.x.x.x x.x.x.x (lease from x.x.x.1 on cnmac2)
> > May 10 12:33:26 openbsd-gateway dhcpleased[77979]: deleting nameservers
> > x.x.x.x x.x.x.x (lease from x.x.x.1 on cnmac2)
> > May 10 12:33:26 openbsd-gateway dhcpleased[77979]: deleting x.x.x.30 from
> > cnmac2 (lease from x.x.x.1)
> > May 10 12:33:28 openbsd-gateway dhcpleased[77979]: adding x.x.x.30 to
> > cnmac2 (lease from x.x.x.1)
> > May 10 12:33:28 openbsd-gateway dhcpleased[77979]: adding nameservers
> > x.x.x.x x.x.x.x (lease from x.x.x.1 on cnmac2)
> > May 10 12:38:28 openbsd-gateway dhcpleased[77979]: deleting nameservers
> > x.x.x.x x.x.x.x (lease from x.x.x.1 on cnmac2)
> > May 10 12:38:28 openbsd-gateway dhcpleased[77979]: deleting x.x.x.30 from
> > cnmac2 (lease from x.x.x.1)
> > May 10 12:38:30 openbsd-gateway dhcpleased[77979]: adding x.x.x.30 to
> > cnmac2 (lease from x.x.x.1)
> > May 10 12:38:30 openbsd-gateway dhcpleased[77979]: adding nameservers
> > x.x.x.x x.x.x.x (lease from x.x.x.1 on cnmac2)
> >
>
