Forum Discussion
Yann_Desmarest_
Nacreous
NacreousRe: F5 ASM AWS backend sending connection reset.
Hi,
Did you set the snat setting to automap on the VS ?
You can log tcp reset reason in the ltm log file. Here is the link to askf5: https://support.f5.com/kb/en-us/solutions/public/13000/200/sol13223.html
The tmsh command to activate logging:
modify /sys db tm.rstcause.log value enable9 Replies
Jeremy_18125Nimbostratus
Thanks, Source Address Translation is set to automap, and all monitors are green. Software version is 12.0 This looks puzzling, also the LTM log shows RST sent from virtual server IP to browser, [0x2019dac:3657] No route to host ------------------------------- tmsh show /net rst-cause --------------------------------- TCP/IP Reset Cause RST Cause: Count --------------------------------- Flow expired (sweeper) 202 HA disconnect 4 No local listener 465 No pool member available 14 No route to host 819 No server selected 39 TCP 3WHS rejected 34 TCP RST from remote system 4 ------------------------ No route to host & No pool member available could have something to do with the pool subnet being different to the internal subnet, maybe.
Yann_Desmarest_Hi, you need to identify precisely the cause. In general, i run a tailf /var/log/ltm in the same time of my test- Yann_Desmarest_When using curl command on the bigip, the source addr is the selfip, but connecting to the app through the vs force the source addr to the floating.
