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.…Continue readingCisco DHCP server & VRF
NBAR (Network Based Application Recognition) is a cool Cisco tool to identify and classify content flowing through a router. You can identify applications as mission critical, business-related, non-critical or unwanted.…Continue readingNBAR and smart filtering
Lately I received some questions about routing decisions and how to influence the routing decisions via access control lists. The following example shows a simple configuration for policy-based routing. The…Continue readingPolicy-based routing in a nutshell
Nowadays everybody wants redundancy within their network, especially when using remote sites. Customers are using multiple ISP’s for redundancy and/or configure BGP solutions. In the old days (hear me talking…Continue readingISDN Backup – still alive?
While checking interface statistics on a Cisco 3845, I noticed the following layer 3 interfaces. Interface IP-Address OK? Method Status Protocol GigabitEthernet0/0 18.104.22.168 YES NVRAM up up GigabitEthernet0/1 10.10.10.1 YES…Continue readingHuh? Interface SSLVPN-VIF0?