Chapter 3: Terminal Menu Operation and Structure
46
Express XL/XLT User Manual
61200070L1-1
IP/Proxy ARP
Write security: 4; Read security: 5
This feature allows the network portion of a group of addresses to be shared
between several physical network segments. The ARP protocol itself provides
a way for devices to create a mapping between physical (i.e., Ethernet) ad-
dresses and logical IP addresses. Proxy ARP makes use of this mapping fea-
ture by instructing a router to answer ARP requests as a “proxy” for the IP
addresses behind one of its ports. The device which sent the ARP request will
then correctly assume that it can reach the requested IP address by sending
packets to the physical address that was returned to it. This technique effec-
tively hides the fact that a network has been (further) subnetted. If this option
is set to
Yes
(def), when an ARP request is received on the Ethernet port the
address is looked up in the IP routing table. If the forwarding port is not on the
Ethernet port and the route is not the default route, the Express XL/XLT will
answer the request with its own hardware address. If set to
No
, the Express
XL/XLT will only respond to ARP requests received for its own IP address.
Содержание Express XL
Страница 14: ...List of Figures x Express XL XLT User Manual 61200070L1 1...
Страница 16: ...List of Tables xii Express XL XLT User Manual 61200070L1 1...
Страница 22: ...Quick Startup Guide 6 Express XL XLT User Manual 61200070L1 1...
Страница 42: ...Chapter 2 Installation 26 Express XL XLT User Manual 61200070L1 1...
Страница 122: ...Chapter 3 Terminal Menu Operation and Structure 106 Express XL XLT User Manual 61200070L1 1...
Страница 130: ...Chapter 4 Troubleshooting 114 Express XL XLT User Manual 61200070L1 1...
Страница 154: ...Appendix B Log Messages 138 Express XL XLT User Manual 61200070L1 1...
Страница 158: ...Appendix C SNMP 142 Express XL XLT User Manual 61200070L1 1...
Страница 164: ...Appendix E Terminal Mode Commands 148 Express XL XLT User Manual 61200070L1 1...
Страница 174: ...Glossary 158 Express XL XLT User Manual 61200070L1 1...
Страница 186: ...Index 170 Express XL XLT User Manual 61200070L1 1...