Cisco recommends using AES-CBC for encryption and SHA1 for authentication to protect against performance risks to some of its Catalyst and ASR gear. To reduce the risk of service problems, Cisco is ...

Even Jeff Doyle tells me that I should do a little blogging with OSPF. What’s a networker to do with that kind of backing? And a few others expressed some interest as well – in understanding LSAs ...

OSPF is a popular interior gateway protocol, frequently encountered by network engineers. Here's how to get it up and running in a network. Open shortest path first, or OSPF, is a routing protocol ...

Cisco fixed two high severity vulnerabilities in two products this week that could have let an attacker trigger a denial of service condition or bypass local authentication. Cisco fixed 15 ...