In the IP based Ethernet networks, data and voice services are often transmitted simultaneously over the network. Voice traffic, in particular, requires a higher forwarding priority than data traffic.

Use these tips as a guide to keeping a lock on data when using virtual LANs. Securing a virtual LAN network begins with physical security. These best practices can help administrators and IT managers ...

ARP requests are crossing VLAN boundaries: On host B, executing 'arping -i eth1.11 -0 172.16.0.1', 'arping -i eth1.10 172.16.1.1', 'arping -i eth1.10 192.168.0.1' will return replies from host A. I ...