Hi. Here it is:
# This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback auto eth0 #auto eth1 #auto eth2 auto eth3 auto vlan8 iface vlan8 inet static address 10.255.8.1 netmask 255.255.255.252 vlan-raw-device eth0 auto vlan5 iface vlan5 inet static address 10.255.5.1 netmask 255.255.255.0 vlan-raw-device eth0 auto vlan4 iface vlan4 inet static address 10.255.4.1 netmask 255.255.255.0 vlan-raw-device eth3 ### 30 июля 2018, 17:14:10, от "Dan Ritter" <d...@randomstring.org>: On Mon, Jul 30, 2018 at 03:55:52PM +0300, Алексей wrote: > Hi! > > I need an advice about how can I set the MTU on the interface which is not in > fact configured. So to explain in more detail: > > I have a debian box acting as a router and it has interface let's say eth0. > Eth0 itself doesn't have any IP configuration, all IP configuration and > routing is done on vlan interfaces bound to eth0. I need to route jumbo > frames so I need to set the MTU on vlan interfaces to 9000 and consequently I > need to set MTU to 9000 on the physical eth0 also. However, as i have only > one line for eth0 in /etc/network/interfaces: > > auto eth0 > > I can't set the MTU in the eth0 configuration. I can probably write a pre-up > directive in the configuraion of the first vlan interface however I'm not > sure if this is correct way. Probably someone can advice better one? > Please show us your entire /etc/network/interfaces. -dsr-
