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Forum Discussion

1qaz's avatar
1qaz
Icon for Nimbostratus rankNimbostratus
May 08, 2020

I want to get the source port but it was changed by F5?

Hi,I have a question for help: I have a VS1 on BIGIP 3900, I want the source port of the client to be kept, but I observed that the client'port all be changed by F5: (tmos)# show sys connection cs-...
application delivery
BIG-IP
LTM
Mayur_Sutare's avatar
Mayur_Sutare
Icon for MVP rankMVP
May 08, 2020

 ,

 

i think, for VS1 source port settings is set to change.

 

You can verify it under,

Virtual Server --> Configuration --> Advanced --> Source Port.

 

If setting is set to Preserve, source port will not change. You verify this setting under VS.

 

Hope it helps!

Mayur

  • 1qaz's avatar
    1qaz
    Icon for Nimbostratus rankNimbostratus
    May 08, 2020

    thanks to Mayur Sutare,I logged in to F5 and checked, the source port of VS1 was set to Preserve, and the same setting for VS2