You can use the CISCO-UNIFIED-FIREWALL-MIB to get the concurrent connection
Unfortunately thereÂ¹s no xlate MIB currently.
Snipet of info you can get from CISCO-UNIFIED-FIREWALL-MIB :
ConnectionStat ::= TEXTUAL-CONVENTION
"This textual convention is used to describe various
other : A generic connection event.
totalOpen : Total open connections since reboot.
currentOpen : The number of connections currently open.
currentClosing : The number of connections currently closing.
currentHalfOpen : The number of connections currently
currentInUse : The number of connections currently in use.
high : The highest number of connections in use at
any one time since system startup."
sh conn info. is always better then sh xlate.
Plz rate if helps.