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MTU

bluesea2010
Level 5
Level 5

Hi , 

How can I change the MTU value for ipsec site to site vpn  to a higher value  

the interenet service provider mtu value is 1500 

is there any point of increasing the mtu value 

 

Thanks 

 

2 Replies 2

marce1000
VIP
VIP

 

 - FYI : https://www.cisco.com/c/en/us/td/docs/interfaces_modules/services_modules/vspa/configuration/guide/ivmsw_book/ivmvpnb.pdf

                  Usually increasing MTU will not be favorable and or might be counter-productive.

 M.



-- ' 'Good body every evening' ' this sentence was once spotted on a logo at the entrance of a Weight Watchers Club !

balaji.bandi
Hall of Fame
Hall of Fame

Adding to other comments, you need to understand before you tweak the MTU :

 

https://www.cisco.com/c/en/us/support/docs/ip/generic-routing-encapsulation-gre/25885-pmtud-ipfrag.html

 

BB

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