I am running an encrypted link and want to check for and if necessary, remedy fragmentation.
I'm using two connected 6500's with VPN modules.
Using the NAM I sniffed the outbound physical interface and I see packets of various sizes but the biggest is 128bytes even during a massive file transfer. I'm assuming fragmentation but need to be sure.
Using ping I see the biggest packet allowed without fragmentation is 1472.
My primary intent is to first determine if there is a fragmentation issue. If there is I'll probably follow up with questions on which command to use and where to put it. I assume that I would use either the physical outgoing interface(currently MTU=1500) or the inside crypto interface(current MTU=4500)
1. How do I determine if there is a fragmentation issue
BenefitsDocumentationPrerequisiteImage Download LinksLimitationsSupported PlatformsLicense RequirementsTopologyStep-By-Step ConfigurationConfigure Virtual ServiceActivate the virtual service and configure guest IPsConfiguring UTD (Service Plane)Configurin...
Login to the FXOS chassis manager.
Direct your browser to https://hostname/, and log-in using the user-name and password.
Go to Help > About and check the current version:
Check the current version availa...
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...