I have a network with several remote sites that have a single FTD 1120 all with site to site VPNs connecting back to a central location. The FTD's are all managed via their public IP by the FMC at the central location. The site to site VPNs connect f...

I've having an issue getting NAT to work when the outside interface is a subinterface. I can't find any mention of this not being supported in IOS-XE on the 1001-x. It's also not mentioned at all in the IP Addressing: NAT Configuration Guide, Cisco I...

I'm testing out a new 3850-48XS to be used as a closet switch. This network uses dot1x, all closet switches today are 3750's. I've found on the 3850's that the dot1x works as expected when logging in. The port correctly goes from the isolated vlan to...

I've never done this before but a co-worker is wondering if you can use 1 SM link and 1 MM link in a single port channel. They are both 1gb.

I am trying to setup a network using Cisco 6509's and Marconi ESR5000's. I am running into a problem when I try and run spanning tree. The two different brands of switches are running the same version of STP. What’s happening is the root bridge is no...