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Changing Anyconnect MTU on ASA or client

I am trying to fix the MTU bug on the Anyconnect client. I currently have clients connecting to a ASA5545X that is running version 9.0(4) code.

I don't see anywhere to specify

svc mtu 1200

in webvpn or group policy on this code release.

Does anyone know where I go to do this? Can it also be done from the client? After switching software packages and pushing them out to the clients, it broke all the vpn connections

1 ACCEPTED SOLUTION

Accepted Solutions
Beginner

Hello,

Hello,

You can follow this documentation:

http://www.cisco.com/c/en/us/td/docs/security/asa/asa90/configuration/guide/asa_90_cli_config/vpn_anyconnect.html#72264

for this version the command is:

anyconnect mtu 1200

is configured in the group policy.

Regards, please rate!

View solution in original post

4 REPLIES 4
Beginner

Hello,

Hello,

You can follow this documentation:

http://www.cisco.com/c/en/us/td/docs/security/asa/asa90/configuration/guide/asa_90_cli_config/vpn_anyconnect.html#72264

for this version the command is:

anyconnect mtu 1200

is configured in the group policy.

Regards, please rate!

View solution in original post

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Beginner

Re: Hello,

How does one adjust the Anyconnect MTU on a Cisco Firepower 2100 Managed via the Firepower Management Center?

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Hall of Fame Guru

Re: Hello,

For non-blacklisted configuration commands that are not exposed via the FMC GUI, you use a FlexConfig to push the commands to the device.

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Beginner

Re: Hello,

To change the MTU on AnyConnect, edit your DfltGrpPolicy, and go to the AnyConnect tab, and select SSL Settings, there you can change it.

 

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