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Do you have proxy-arp configured anywhere? <br />
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If you had debug or wireshark or something turned on, you would see the broadcasts and replies.
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Do you have proxy-arp configured anywhere?

If you had debug or wireshark or something turned on, you would see the broadcasts and replies.

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We found - static entry in logon script
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<div class="content wysiwyg-content">
Weird ARP issue. We recently moved an application to a new server and changed the IP addresses so that the new server would like its predecessor on the LAN. However, after clearing ARP and using the new the server normally, when client PCs reboot, they're still getting the old MAC address listed in the ARP cache. It seems like we need to clear ARP, every time we restart a client.<br />
<br />
The question is - Where is the ARP information coming from and how do I find it?<br />
<br />
thanks much,<br />
jv
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Weird ARP issue. We recently moved an application to a new server and changed the IP addresses so that the new server would like its predecessor on the LAN. However, after clearing ARP and using the new the server normally, when client PCs reboot, they're still getting the old MAC address listed in the ARP cache. It seems like we need to clear ARP, every time we restart a client.

The question is - Where is the ARP information coming from and how do I find it?

thanks much,
jv

ARP Cache

Transmission Control Protocol/Internet Protocol (TCP/IP) is the set of networking protocols that define end-to-end connectivity specifying how data should be packeted, addressed, transmitted, routed and received at the destination. This functionality is organized into four abstraction layers which are used to sort all related protocols according to the scope of networking involved.

TCP/IP

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.

Networking

A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.