On the switch you need to enable port spanning so all traffic of the VLAN will be copied to a monitoring port. Look for the specific commands in the documentation of the switch.As a freeware product to watch the traffic, you could use ethereal (www.e...

Hi,ip-helper is used to change the DHCP broadcast to a unicast to the DHCP server. So clients on a separate subnet can reach the DHCP server.For using DHCP with PPP you have to configure your PPP setup in such way the router will retrieve the ip adre...