We purchased a Nexus 9000 within the last year, and we are using that as our core router.  We have several 3750s and we have an NEC SV8500 with VoIP cards.  Everything has been working find, until we purchase a 3850 stack and tried to configure it.  ...

A peer created a VPN tunnel between two offices using two 5512, both running 8.6(1)2.  The tunnel works great, for everything except the Windows 2012 R2 servers.  The 2012 R2 servers cannot communicate with 2012 R2 servers across the tunnel, but they...

We have a pair of redundant 515e firewalls. A couple months ago users started complaining of slow performace between network segments. The common denominator seems to be segments seperated by the PIX's. We also discovered if we try to FTP files fr...

I have a remote office that is connected to the data center via a point to point T1. We had a DSL Internet connection installed at the remote office last week for Internet bound traffic. The T1 router is the default gateway for the remote office. ...

We are running 7.0(2) on a pair of PIX 525. We have a syslog server and we are demoing a system that analyizes syslog messages, so we need the PIX to send syslog messages to two hosts. We defined two hosts with the following commands, but discovere...