Cabletron Systems HSIM-W6 - Manual (Page 164)

Chapter 7: General Configuration Using Local Management
150 HSIM-W6 User’s Guide
A proxy ARP response is generated when the following occurs:
• Proxy ARP is enabled on a router port.
• An ARP request is received as a LAN broadcast (looking for the MAC-layer address of an IP
host on another network segment).
• An entry exists in the IP Forwarding Table for the destination host’s network.
Enabling Proxy ARP on a router port allows IP hosts to dynamically obtain the MAC-layer address
of other IP hosts attached to different networks or subnetworks by using broadcast ARP request
packets. With Proxy ARP enabled, IP hosts are not required to maintain knowledge of specific
subnetworks.
To enable Proxy ARP on a router port, complete the following steps:
1. Use the arrow keys to highlight the Proxy ARP field.
2. Use the ENTER key to toggle the entry to ENABLED.
3. Use the arrow keys to highlight the SAVE command at the bottom of the screen, and then press
ENTER. The message “SAVED OK” displays.
Configuring the Network Broadcast Type on a Port
IP Routing Services will recognize, and accept as network broadcasts, IP packets with the host
portion of the IP address as either all 1’s or all 0’s. Other networking devices only recognize all 0’s
as a network broadcast.
To configure IP Routing Services to send network broadcasts addressed to all 0’s, complete the
following steps:
1. Use the arrow keys to highlight the Network Bcast field.
2. Use the ENTER key to toggle the entry to ZEROS.
3. Use the arrow keys to highlight the SAVE command at the bottom of the screen and then press
ENTER. The message “SAVED OK” displays.