how i can monitor the comunication tcp:- ack - seq- windows- finWith wireshark, and to do troubleshooting and to determine if i have any problem

My boss to aks for to limit calls to 3 minutes, is possible to do this?, I have call manager version 4.1

I did upgrade to version of IOS cat4000-i9k91s-mz.122-18.EW2.bin to cat4500-entservicesk9-mz.122-52.SG.bin at a catalyst 4507r engine IV.Before i could to execute:ssh 1.1.1.1, without problem.But after upgrade i can't do that.In catalyst 4507r:---...

I have ios version 12.2(18)EW2 in 4507r, i want to udgrade to a new version.What version you recommend?sh ver:Cisco Internetwork Operating System Software IOS (tm) Catalyst 4000 L3 Switch Software (cat4000-I9K91S-M), Version 12.2(18)EW2, RELEASE S...

I have one firewall pix of face to internet. I need to give access to a computer in my internal network to a a ip address in the external network for one vpn conection I read and, i think that the configuration is the following:I don't know the type ...