Switched network with external DHCP Server (WinServer 2008) Part 1

I wanted to setup an external DHCP server to:

1. See if I could figure out how to do it
2. Practice the security part of the Switch exam and
3. See if I can introduce a rouge DHCP server… the plan is to have PC-2 go rouge.

Part 1 goes over the basic DHCP Server configurations (on WinServer 2008).

Switched Network with an External DHCP Server (WinServer 2008) Part 2

Part 2 continues with the switch configurations along with PC- 1 & 2 getting their IP address from the external server….

IP SLA on 2950s

Is not supported!

2950(config)#ip s?
security  source-route  sticky-arp  subnet-zero

Instead, to configure two 2950s as IP SLA responders, configure them as rtr responders. 

No Tclsh? No Problem!

I’m shocked and appalled to have just discovered my 3550’s don’t support scripting with tcl. Actually, the 3560’s don’t either. But, thanks to a posting on CCIE Pursuit Blog a macro can be used to substitute a tcl ping script. The macro needs to be run in global configuration mode so you’ll need to include the ‘do’ statement.

Basics: Switches, VirtualBox and GNS3

Getting your physical switches to talk to virtual machines and GNS3 routers.

Physical PC to Virtual PC

How I converted my old physical desktop running XP to a Virtual Machine…

Duplex Mismatch

I’ve had this happen several times, I connect a 3725 to a 3640 using slot 0 (f0/0) and bam, duplex mismatch… no matter how many times I configure “duplex full” on each interface, one of them goes back to half-duplex.