Microsoft Azure To Cisco ASA Site to Site VPN
KB ID 000116 Problem The one reason I prefer Cisco over Microsoft is they rarely change things, you learn how to do something and it’s learned. This is the second time have had to write this article purely because the Azure UI has changed! Virtual Network Gateway Options With VPN’s into Azure you connect to a Virtual Network Gateway, of which there are TWO types Policy Based, and Route Based. This article will deal with...
Cisco Firewalls and PING
KB ID 0000351 Problem With regards to Ping, out of the box a Cisco firewall will allow you to ping the interface you are connected to, so in a normal setup inside clients can ping the inside interface, and the firewalls outside interface can be pinged from outside. OK – to understand pinging through a Cisco Firewall you need to understand that Ping is part of the ICMP protocol suite, and unlike other protocols is not “connection...
Cisco Firewalls Changing the Web Management Port
Cisco 5500 Changing the ASDM Port Unable to Port Forward HTTPS KB ID 0000268 Problem You want to change the port that the Cisco ASDM runs over, or you are attempting to port forward https/ssl and see the following error Error: ERROR: unable to reserve port 443 for static PAT ERROR: unable to download policy You are trying to port forward (Create a static PAT entry) on a Cisco ASA for port 443 / https. This port is in use by the ASDM....
Configure Cisco EasyVPN With Cisco ASA 5500
KB ID 0000337 Problem Site to site VPN’s are great for main office to branch office connections, but for remote workers in a SOHO environment obtaining a static IP address can be expensive and time consuming. Traditionally remote workers will use either AnyConnect or IPSEC Remote VPN’s. However Cisco have a system which lets you have a main site (or sites), with a static IP, that acts as the EasyVPN server, then remote...
Cisco ASA – Changing VPN IP Addresses
KB ID 0000391 Problem I had a client the other week with about 25 sites, his core site was changing ISP and therefore changing its IP address. On the main site this is pretty straightforward, just change the outside interfaces IP address, sub net mask and the default route (That’s the default gateway for non cisco-ites). All well and good, but what about his other 24 sites? They all had VPN’s back to the main site, and all...