Chapter 3. Terminal Menu Operation and Structure
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Express 4110/4120 User Manual
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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) addresses and logical IP addresses. Proxy ARP makes use
of this mapping feature 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 effectively 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 4110/4120 will answer the
request with its own hardware address. If set to No, the Express 4110/
4120 will only respond to ARP requests received for its own IP address.
Содержание Express 4110
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Страница 24: ...List of Tables xiv Express 4110 4120 User Manual 61200176L3 1...
Страница 50: ...Chapter 1 Understanding ISDN and the Express 4110 4120 1 20 Express 4110 4120 User Manual 61200176L3 1...
Страница 56: ...Chapter 2 Installation 2 6 Express 4110 4120 User Manual 61200176L3 1...
Страница 146: ...Chapter 5 Specifications 5 4 Express 4110 4120 User Manual 61200176L3 1...
Страница 172: ...Appendix B Log Messages B 22 Express 4110 4120 User Manual 61200176L3 1...
Страница 176: ...Appendix C SNMP C 4 Express 4110 4120 User Manual 61200176L3 1...
Страница 194: ...Acronyms Acronyms 4 Express 4110 4120 User Manual 61200176L3 1...
Страница 204: ...Index Index 10 Express 4110 4120 User Manual 61200176L3 1...