Re: Set the MTU on the interface
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-
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