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New Member

Cisco 1841 mtu size on FastEthernet

Hello

Im using a Cisco 1841 where FastEthernet0/0 is the customers LAN, and FastEhternet0/1 is the WAN uplink.

When im trying to set the wan uplink to mtu size 1524 i get the following error: % Interface FastEthernet0/1 does not support user settable mtu.

Is there any way i can get the FastEhternet interface to support higher mtu size than the deafult 1500 ?

4 REPLIES

Re: Cisco 1841 mtu size on FastEthernet

there is no way.

why do you want to increase mtu?

New Member

Re: Cisco 1841 mtu size on FastEthernet

The customer needs higher mtu size to allow for logon to some of their server systems

Re: Cisco 1841 mtu size on FastEthernet

something is wrong...

1500 is enough...

Hall of Fame Super Gold

Re: Cisco 1841 mtu size on FastEthernet

Hi,

Alekseev is correct. Your customer has probably a misunderstanding bout the MTU concept in IP networking.

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