ARP or Address Resolution Protocol in Windows is responsible for resolving IP addresses to MAC addresses to speed up connection over a local network. So instead of asking the router where a particular ...

We've got a device on a new, dedicated vlan (the only only other device on it is the SVI from the cisco switch) that is reporting IP conflicts. Code: eth0 IP conflict by 68-EF-BD-21-9E-1A! eth0 IP ...

In March we introduced the Address Resolution Protocol (ARP), a half-brother to the TCP/IP stack that maps the logical IP address space into the real world of Ethernet hardware addresses. We didn’t ...

You would need to give more info to be sure really, so I will assume she is behind one of those cheap home routers, then XP may have a problem with the DHCP server on that box, or XP just may be hosed ...