Tag: IOS
Configuration Example, Routing
Cisco DHCP server & VRF
I had some issues while configuring some VRF’s on a Cisco router and using that router as a DHCP server. First of all the router wasn’t binding any DHCP request. The DHCP server configuration is defined below. ip dhcp pool guest vrf vrf-guest network 10.10.0.0 255.255.252.0 default-router 10.10.0.1 domain-name internet-only.nl dns-server 208.67.222.222 208.67.220.222 The configuration … Read More
Configuration Example, Security
Configure IOS SSL VPN on IOS router
Yesterday I blogged about configuring a VPN client on an IOS router and today I blogged about importing PKCS12 certificates for WebVPN purposes. This follow up blog is about configuring the WebVPN functionality together with the AnyConnect client and port forwarding on an IOS router. I use the same setup as with the VPN client … Read More
Configuration Example, Security
Import PKCS12 certificate on IOS router
Nowadays IOS routers can be configured with WebVPN (Clientless SSL VPN) functionalities. WebVPN allows a user to securely access resources on the corporate LAN from anywhere with an SSL-enabled Web browser. To secure the connection you should use a SSL certificate to encrypt all transferred data. There are different ways of creating and importing SSL … Read More
Configuration Example, Security
Configure VPN client on IOS router
One way to remotely access a network is using the Cisco VPN client. Nowadays more and more implementations of SSL VPN are being done and Cisco stopped their development on their VPN client and pushes their Cisco AnyConnect client. Still the Cisco VPN client is often used to remotely gain access to a network. The … Read More
Cisco IOS 15 licensing
I just read an interesting article about the new licensing on Cisco hardware, especially after the End-of-Sale and End-of-Life Announcement for Cisco IOS Software Release 12.4. In short the article tells the following: IOS 12.4 is replaced by IOS 15. IOS 15 is a single software package for the hardware platform that your are using. … Read More
Cisco IOS Security
The first session I attended is about Deploying IOS Security. The session is about using the Cisco IOS as firewall to protect branch offices. We discussed normal classic firewalling and zone-based firewalling. I normally use classing firewalling, but I guess I have to try zone-based firewalling in the future. The advantage of zone-based firewalling is … Read More