Cisco AnyConnect – Untrusted VPN Server Blocked!
KB ID 0000651 Problem The newest versions of the AnyConnect client now show you the following; If you are seeing this you’re using the (default) self signed certificate, or you connected to an IP address rather than the FQDN. But unlike before, you can now ‘lower’ the security so it does not warn you every time. Solution 1. From the warning screen (shown above) select ‘Change Settings…’. 2. Untick...
AnyConnect Error ‘The secure gateway has rejected the connection attempt, No assigned address’
KB ID 0000876 Problem I upgraded a clients ASA5510 firewall(s) yesterday. Post upgrade he got this error; The secure gateway has rejected the connection attempt. A new connection attempt to the same or another secure gateway is needed, which requires re-authentication. The following message was received from the secure gateway: No assigned address. Solution Thankfully the error is pretty descriptive, the remote client can not get an...
AnyConnect – ‘Service Provider is Restricting Access’
KB ID 0000950 Problem I only tend to use AnyConnect for VPN. So while I was at a clients site the other week, I wanted to jump onto my test servers at home and was greeted by this; “The service provider in your current location is restricting access to the Internet. You need to log on with the service provider before you can establish a VPN session. You can try this by visiting any website with your browser.” Solution I...
Cisco AnyConnect – Securing with Microsoft Certificate Services
Part 2 (How to Configure AnyConnect) KB ID 0001031 Problem Back in Part 1 We configured the Microsoft Certificate Services to meet our certificate needs. Now we configure the firewall for AnyConnect. Solution 1. Log onto the ASA > Go to global configuration Mode. login as: petelong petelong@192.168.100.1’s password:********** Type help or ‘?’ for a list of available commands. Petes-ASA> enable Password: *******...
AnyConnect – Using a Windows DHCP Server to Lease IP Addresses to the Remote Clients
KB ID 0001050 Problem I did an AnyConnect design for a client recently, and they asked ‘Instead of using the firewall to lease the DHCP addresses to our remote clients, can we use our Windows DHCP Server?” In the past I’ve used Windows DHCP servers for IPSEC VPN clients, but more recently I’ve tended to just use the firewall. The client had some valid reasons for wanting to do so, and given the complexity of...