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Registered: ‎08-11-2018
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How important is it to set MTU on the LAN?

I'm just checking over my CLI config on my ER-4 & noticed I didn't have any MTU settings (by default) under the interfaces.

 

Should I set these (eg. MTU 1500)?

 

thx!


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Veteran Member
Posts: 7,626
Registered: ‎03-24-2016
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Re: How important is it to set MTU on the LAN?

Don't bother about LAN mtu setting.  It defaults to 1500, which should be fine.

 

On tunnels , and pppoe interfaces , mtu does matter

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Veteran Member
Posts: 7,626
Registered: ‎03-24-2016
Kudos: 1984
Solutions: 874

Re: How important is it to set MTU on the LAN?

Don't bother about LAN mtu setting.  It defaults to 1500, which should be fine.

 

On tunnels , and pppoe interfaces , mtu does matter

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