Forum Discussion

Altocumulus

Dec 06, 2022

This is a related question when using Performance L4 as a forwarding IP.

hello Sir. Thank you for your help. [No Pool] I know that when the [Address Translation ] option is [Disalbed], it works normally. I would like to know what Flow does not wor...

application delivery

xuwen
Dec 06, 2022
Address Translation, when checked (enabled), that the system translates the address of the virtual server. When cleared (disabled), specifies that the system uses the address without translation. This option is useful when the system is load balancing devices that have the same IP address. The default is enabled.
your VS not have a pool, when you enable Address Translation, the system can not translate the clientside dst ip to serverside pool member address
tcpdump packet find icmp type 3 code 9 official definition is "Destination network administratively prohibited"
Nikoolayy1
Dec 06, 2022
Also with TCP RST logs enabled I think in the LTM log it will be "No server selected" https://support.f5.com/csp/article/K13223.

xuwen

Cumulonimbus

Address Translation, when checked (enabled), that the system translates the address of the virtual server. When cleared (disabled), specifies that the system uses the address without translation. This option is useful when the system is load balancing devices that have the same IP address. The default is enabled.

your VS not have a pool, when you enable Address Translation, the system can not translate the clientside dst ip to serverside pool member address

tcpdump packet find icmp type 3 code 9 official definition is "Destination network administratively prohibited"