INVERSE ADDRESS RESOLUTION PROTOCOL
\ɪnvˈɜːs ɐdɹˈɛs ɹˌɛzəlˈuːʃən pɹˈə͡ʊtəkˌɒl], \ɪnvˈɜːs ɐdɹˈɛs ɹˌɛzəlˈuːʃən pɹˈəʊtəkˌɒl], \ɪ_n_v_ˈɜː_s ɐ_d_ɹ_ˈɛ_s ɹ_ˌɛ_z_ə_l_ˈuː_ʃ_ə_n p_ɹ_ˈəʊ_t_ə_k_ˌɒ_l]\
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(InARP) Additions to ARP typicallyused for Frame Relay. [Any other examples of its use?]Frame Relay stations route frames of a higher levelprotocol between LANs, across a Permanent Virtual Circuit.These stations are identified by their Data Link ControlIdentifier (DLCI), equivalent to an Ethernet address in aLAN itself.InARP allows a station to determine a protocol address (e.g.IP address) from a DLCI. This is useful if a new virtualcircuit becomes available. Signalling messages announce itsDLCI, but without the corresponding protocol address it isunusable: no frames can be routed to it.Reverse ARP (RARP) performs a similar task on an EthernetLAN, however RARP answers the question "What is my IPAddress?" whereas InARP answers the question "What is yourprotocol address?".See RFC 2390.
By Denis Howe
Word of the day
Snake's-head
- Guinea-hen flower; -- so called in England because its spotted petals resemble the scales of a snake's head.
Nearby Words
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- inverse
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