RE: DHCP and multiple vlans
From: Sten Daniel Sørsdal (sten.daniel.sorsdal_at_wan.no)
Date: 01/24/04
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Date: Sat, 24 Jan 2004 02:57:29 +0100 To: "Guy Antony Halse" <guy@mombe.org>, <freebsd-net@freebsd.org>
> I'm trying to configure a FreeBSD 5.1-RELEASE system to act
> as the default gateway for several virtual lans. I've got
> two NICs in the box, one which supplies the uplink, and one
> which has about 40 vlan(4) vlans on it.
>
> I was trying to run isc-dhcp3's dhcrelay to relay DHCP
> messages to our DHCP server when I ran into a problem. Only
> the first ten vlans (vlan0 through
> vlan9) are serviced by dhcrelay.
>
It's a limitation in the isc-dhcp software, AFAIK.
If my memory serves me correctly you can try something along these lines;
# cd /usr/ports/net/isc-dhcp3-server
# make patch
now edit work/dhcp-3.0.1rc12/common/discover.c
at line 138 or so there should be "char buf[2048]"
change 2048 into for example 16384.
# make build install
assuming you are building on your gateway.
_// Sten Daniel Sørsdal
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- Previous message: Brooks Davis: "review request: interface renaming patch"
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