We have an LB that has 4 members, and the requests for the ip member 10.58.42.39

Can you explain better the problem? Is the traffic going to the pool member but not returning?

Can you run these commands (replace the <> with the correct information)?

tmsh list ltm pool 
tmsh list net self
tmsh list net route
tmsh list list net route-domain
tmsh list net vlan

In your wire shark screenshot, there is an issue..

The MAC address is broadcast!!!

I guess there is an issue with the net mask configured on the f5 and 10.58.42.39 is detected as broadcast address!

Here is the question with well formatted data, when I first read the question, I missed lots of information because most of them were unreadable!

Team F5, We have an LB that has 4 members, and the requests for the ip member 10.58.42.39 have no return to port 8443.

• RD1_VIP_AMG_PXRX_8443
  • RD1_POOL_AMG_PXRX_HTTPS
    • 10.58.42.38%1:8443
    • 10.58.42.39%1:8443 <-
    • 10.58.42.40%1:8443
    • 10.58.42.41%1:8443

For testing we went up on the same server ip 10.58.42.45 on the destination server (which is listening on all ports) and worked without problems.

For some reason for the given ip the package of LB instead of sending to the correct mac, it sends to a broadcast, even it putting in the arp table of the equipment:

(DFSIGD-CLB18B)(cfg-sync Changes Pending)(/S1-green-P:Active)(/Common)(tmos) show net arp

-------------------------------------------------------------------------------------------------
Net::Arp       
Name             Address          HWaddress          Vlan                 Expire-in-sec  Status
-------------------------------------------------------------------------------------------------

10.58.42.38%1 10.58.42.38%1 00:50:56:86:6b:f3 /Common/Front-End_CLB18_API_Manage-T266 58 resolved 
10.58.42.39%1 10.58.42.39%1 00:50:56:86:6d:d9 /Common/Front-End_CLB18_API_Manage-T266 10 <- resolved 
10.58.42.40%1 10.58.42.40%1 00:50:56:86:3c:fa /Common/Front-End_CLB18_API_Manage-T266 278 resolved 
10.58.42.41%1 10.58.42.41%1 00:50:56:86:bd:57 /Common/Front-End_CLB18_API_Manage-T266 187 resolved 
10.58.42.42%1 10.58.42.42%1 00:50:56:86:da:81 /Common/Front-End_CLB18_API_Manage-T266 198 resolved 
10.58.42.45%1 10.58.42.45%1 00:50:56:86:6d:d9 /Common/Front-End_CLB18_API_Manage-T266 216 <- resolved