mhsnetadmins
Oct 08, 2012Nimbostratus
snat port address overlap on LTM
Using SNAT on http virtual server and 3 nodes. What happens when the source port on a given service is duplicated? For example:
[root@bigip2:Active] config b conn show all | grep 1922
(pkts,bits) in = (45, 11922) out = (58, 27517)
CLIENTSIDE 10.120.15.27:1922 <-> 10.150.87.33:https
CLIENTSIDE 10.150.87.207:1922 <-> 10.150.87.33:https
SERVERSIDE 10.120.114.7:1922 <-> 10.120.114.34:https
Two clients are using the same source port accessing a virtual server. On serverside the port is used, but which client? How does the LTM handle the collision? Does it remap to another port on serverside? Or does the client simply have to retry again?