Cabletron Systems CSX1000 - Manual (Page 383)

Workgroup Remote Access Switch 383
S YSTEM V ERIFICATION
Verifying Proxy ARP is Operational
3. If the communication between two IP devices across the WAN is successfully established, then
the proxy ARP feature is properly working.
4. If the communication can not be established, display the ARP cache on the IP host devices to
see what MAC addresses are mapped to the target IP address. On many operating systems, the
arp -a command displays the ARP cache. If the target IP addresses are mapped into the
nearest CyberSWITCH’s MAC addresses respectively, for example, on Host A, Host B’s IP
address is mapped to the CyberSWITCH A’s MAC address, then the proxy ARP feature is
working properly, but basic IP routing may not be operational. Establish the basic IP
connectivity first, then try to use the proxy ARP feature. If the target IP addresses are not shown
or are mapped to MAC addresses that are not then refer to the
Proxy ARP Operation section of
the Problem Diagnosis chapter.