Cisco – Configuring Dynamic Multipoint Virtual Private Networks DMVPN
May30

Cisco – Configuring Dynamic Multipoint Virtual Private Networks DMVPN

DMVPN KB ID 0000954 Problem A while back I uploaded a run through on how to deploy GRE tunnels and protect those tunnels with IPsec. That point-to-point GRE tunnel is a good solution, but if you have a lot of sites it’s not a solution that scales very well. Yes you can have 2147483647 tunnel interfaces, but good luck manually configuring all those tunnels and even if you did, if you want each of your remote sites to talk to each...

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How Do I Find/Change My IP Address?
Jan17

How Do I Find/Change My IP Address?

KB ID 0000208 What’s an IP address? An IP address is the address used on a network to find your PC, Server, Laptop, or Printer etc. It’s the networking equivalent of your house number and post code (or Zip Code for visitors from over the pond). Do you want your PUBLIC or PRIVATE IP address? As we started to run out of addresses, there were a number of solutions that we came up with, one you will see below (DHCP) the other...

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Cisco ASA Site to Site IKEv2 VPN Static to Dynamic
Oct01

Cisco ASA Site to Site IKEv2 VPN Static to Dynamic

KB ID 0001602 Problem Site to Site VPNs are easy enough, define some interesting traffic, tie that to a crypto map, that decides where to send the traffic, create some phase 1 and phase 2 policies, wrap the whole lot up in a tunnel-group, and you’re done! But there needs to be a ‘peer address’ in the crypto map, and if one end of the VPN is on DHCP that address is likely to change, so you cant supply that? The...

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HP MSM Controller – Using RADIUS With Windows Server
Nov17

HP MSM Controller – Using RADIUS With Windows Server

KB ID 0000922  Problem I’m very disappointed with HP, theres next to no information on how to do this. My plan was to secure wireless access with certificates, so only clients with a valid digital certificate could authenticate and connect to the wireless. After spending nearly a whole day on the phone to various technical support departments at HP, this remained an impossible requirement! In the end, as the client only had a...

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Outlook Error 0x800CCC0F – Using POP3 To Exchange – Behind a Cisco CSC (Trend InterScan) Module
Nov17

Outlook Error 0x800CCC0F – Using POP3 To Exchange – Behind a Cisco CSC (Trend InterScan) Module

KB ID 0000642  Problem I upgraded a clients firewall and CSC software a couple of weeks ago, and ever since “some” users saw the following errors, Error 0x800CCC0F Task ‘{email address} – Sending’ reports error (0x800CCC0F): #The connection to the server was interrupted. If the problem continues, contact your server administrator or Internet service provider (ISP).’ Eventually it would time out...

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