When using a Cisco ASA with the AnyConnect VPN Client software in some instances it is useful to assign the same static IP address to a client whenever they connect to the VPN. Within Active Directory you can configure per user a static IP address and use this IP address whenever the user connects to the VPN. The RADIUS Server (in this instance Cisco ISE 2.0) can be configured to query the attribute in AD which is the” msRADIUSFramedIPAddress” value and assign to the client whenever they connect.
This blog post describes the steps to modify the configuration of ASA/ISE/AD and assumes the Cisco ASA is already properly configured and users can successfully authenticate using the AnyConnect VPN client and receive an IP address from the IP Address Pool. Cisco ISE is defined as the RADIUS Server with Active Directory defined as the External Identity Source.
Continue reading Cisco ASA AnyConnect VPN with Static Client IP Address
This blog post provides the simple configuration information to setup a Site-to-Site VPN between two Cisco ASA firewalls using the IKEv2 protocol.
The following lab scenario was setup in GNS3 using the following images:
- Cisco ASAv version 9.5(2)
- Cisco IOS version 15.2(4)
A VPN will be setup between the 2 Cisco ASA firewalls (ASAv-1 and ASAv-2). The 2 routers (R1 and R2) will act as hosts in the local networks in order to generate traffic to initiate the VPN tunnel on demand.
Continue reading Configuring IKEv2 Site-to-Site VPN on Cisco ASA
Identical Cisco ASA firewalls (same hardware, model, interfaces and RAM etc) can be configured for failover, thus allowing for uninterrupted network connectivity. The Cisco ASA supports 2 failover configurations Active/Active (both appliances pass traffic) and Active/Standby (only the active appliance passes traffic, whilst the other appliance is waiting for failure/failover to occur).
The ASA appliances are connected to each other through a dedicated failover link, this can be any spare interface not currently used. Stateful failover can also be configured; this replicates the firewall state information to the standby appliance.
Continue reading Configuring Cisco ASA Active/Standby Failover