Dear list,
as my ISP is migrating to a new network setup, I'm forced to tinker with my
local setup. Unfortunately, I'm struggling to get two interfaces (vlan0,
vlan1) working simultaneously with DHCP.
Separately, they work fine. Together, vlan1 drops my internet connection
(vlan0); the latter won't return until I manually re-issue dhclient vlan0.
Upon lease renewal, the same occurs, lest I kill the dhclient instance for
vlan1.
I wonder if I'm doing something silly. Is the having two simultaneous
dhclient instances a supported setup? The second instance is for an IPTV
set-top-box (STB) that I'd like to keep away from my regular LAN, hence the
routing domains.
I've disabled PF while trying to get this working, so as to minimise the
amount of things I can do wrong.
Does anyone have a cluebat for me? Insight greatly appreciated.
Regards,
Background:
It's a FttH link that provides two tagged networks (vlan 34 for IP; vlan 4
for IPTV). The latter provides an private range address (in 10.10.12.0/22)
for a set-top-box.
For the STB:
- IPTV Traffic is to be NATed to vlan4 (towards the 10.10.12.0/22 and
185.6.48.0/26 ranges)
- Other/Internet traffic (e.g. program guides) needs to travel via the
regular IP uplink (vlan 34) and should be NATed there
# cat /etc/dhclient.conf
supersede host-name "fluor";
prepend domain-name-servers "27.0.0.1;
interface "vlan1" {
#ignore routers; # vlan1 is in rdomain 1; default route won't hurt us
}
# cat /etc/hostname.em0
description "internal"
-inet6
up
# cat /etc/hostname.em1
description "uplink"
-inet6
up
# cat /etc/hostname.vlan0
description "ip (uplink)"
vlan 34 vlandev em1
dhcp
-inet6
# cat /etc/hostname.vlan1
description "tv (uplink)"
rdomain 1
group tv
vlan 4 vlandev em1
dhcp
-inet6
# cat /etc/hostname.vlan52
description "tv (downlink)
rdomain 1
group tv
vlan 52 vlandev em0
inet 10.0.52.1/24
-inet6
--
If you don't know where you're going, any road will get you there.
