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Chris Esposito
Asked: 2010-07-24 10:18:27 +0800 CST

setting up VLANs on interfaces

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I have a Debain mt-daapd server sharing songs over the network. Our network has a lot of different subnets and VLANS. The DAAP protocol isn't routeable. The server I have has two NICs installed, configured as follows:

auto eth0
auto eth1

iface eth0 inet static
address 172.21.1.20
netmask 255.255.0.0
gateway 172.21.1.1
network 172.21.0.0
broadcast 172.21.255.255

iface eth1 inet static
address 192.168.1.20
netmask 255.255.255.0
gateway 192.168.1.3
network 192.168.1.0
broadcast 192.168.1.255

What I would like to have happen is this: eth0 (on the server VLAN) should stay the same, eth1 should have an address in 5 VLANS attached to it: 172.17.1.20, 172.18.1.20, 172.19.1.20, 172.20.1.20, 172.21.1.20. I would like server software running on the server (mt-daapd, OCS, SSH, SAMBA) to be accessible from all VLANS. Most of this isn't a problem, but the mt-daapd (DAAP) isn't routeable across VLANs or subnets. How can I set this up?

networking vlan debian-lenny itunes

2 Answers

  1. Install vlan package, and set this in the /et/network/interfaces

    iface eth1.0101 inet static
   address 172.17.1.20
   netmask 255.255.255.0


iface eth1.0102 inet static
   address 172.18.1.20
   netmask 255.255.255.0


iface eth1.0103 inet static
   address 172.19.1.20
   netmask 255.255.255.0


iface eth1.0104 inet static
   address 172.20.1.20
   netmask 255.255.255.0


iface eth1.0105 inet static
   address 172.21.1.20
   netmask 255.255.255.0

    You should enable ip_forward to allow traffic among them

    • 1

  2. The network traffic is not being forwarded to the VLAN interfaces... I did

    echo 1 > /proc/sys/net/ipv4/ip_forward

    Is there anything else I need to do to get the forwarding to work?

    • 0