VLAN-silta
(TODO)
- brctl
- vconfig
- ebtables
aptitude install bridge-utils vlan ebtables
Esimerkki VLAN-siltauksesta
- VLAN 111 - LAN 192.168.0.0/24
- VLAN 222 - WLAN 192.168.1.0/24
- VLAN 333 - Pelkkä ADSL-modeemi kytkimessä
- VLAN 444 - Koneet, jotka pääsevät suoraan nettiin VLAN:in 333 kautta
Kytkinasetukset:
PVID = VLAN-tagi, jolla ko. portin liikenne merkitään.
Procurve #1
| Port | Frame Type | PVID | Kommentti |
|---|---|---|---|
| 1 | All | 111 | Jokin LAN-kone |
| 2 | All | 111 | Jokin LAN-kone |
| 3 | All | 111 | Jokin LAN-kone |
| 4 | All | 111 | Jokin LAN-kone |
| 5 | Tagged | None | Linux-reititin eth0 |
| 6 | Tagged | None | Linux-reititin eth1 |
| 7 | All | 333 | ADSL Modem |
| 8 | Tagged | None | Procurve #2 |
| VLAN ID | VLAN Members |
|---|---|
| 1 | None |
| 10 | 8 |
| 111 | 1,2,3,4,5,8 |
| 222 | 5,8 |
| 333 | 6,7 |
| 444 | 5,8 |
Procurve #2
| Port | Frame Type | PVID | Kommentti |
|---|---|---|---|
| 1 | Tagged | None | Procurve #1 |
| 2 | All | 222 | WLAN-reititin |
| 3 | All | 444 | Kone, mikä on suorassa nettiyhteydessä |
| 4 | All | 111 | Jokin LAN-kone |
| 5 | All | 111 | Jokin LAN-kone |
| 6 | All | 111 | Jokin LAN-kone |
| 7 | All | 111 | Jokin LAN-kone |
| 8 | All | 111 | Jokin LAN-kone |
| VLAN ID | VLAN Members |
|---|---|
| 1 | None |
| 10 | 1 |
| 111 | 1,4,5,6,7,8 |
| 222 | 1,2 |
| 333 | 1,3 |
Linux-reitittimen asetukset:
/etc/network/interfaces:
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug eth0
allow-hotplug eth1
iface eth0 inet static
iface eth1 inet static
auto vlan111
auto vlan222
auto vlan333
auto vlan444
auto br0
auto br1
auto br2
# LAN
iface vlan111 inet static
vlan_raw_device eth0
# WLAN
iface vlan222 inet static
vlan_raw_device eth0
# ADSL Modem
iface vlan333 inet static
vlan_raw_device eth1
# Internet
iface vlan444 inet static
vlan_raw_device eth0
# LAN bridge
iface br0 inet static
address 192.168.0.1
netmask 255.255.255.0
bridge_ports eth0.111
bridge_stp on
# Internet bridge
iface br1 inet static
address x.x.x.x
netmask x.x.x.x
gateway x.x.x.x
bridge_ports eth1.333 eth0.444
bridge_stp on
post-up iptables -t nat -A POSTROUTING -o br1 -j MASQUERADE
pre-down iptables -t nat -D POSTROUTING -o br1 -j MASQUERADE
# WLAN bridge
iface br2 inet static
address 192.168.1.1
netmask 255.255.255.0
bridge_ports eth0.222
bridge_stp on
/etc/sysctl.conf Lisää tai muokkaa rivi muotoon
net.ipv4.conf.default.forwarding=1