| arp.4 (726b61ab5fe782694f2bb648dafb316e1857335b) | arp.4 (b92a189eb9b32f7e9db74343d46434b554a67d04) |
|---|---|
| 1.\" Copyright (c) 1985, 1986, 1988, 1994 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 47 unchanged lines hidden (view full) --- 56ARP will queue at most one packet while waiting for a response to a 57mapping request; 58only the most recently ``transmitted'' packet is kept. 59If the target host does not respond after several requests, 60the host is considered to be down for a short period (normally 20 seconds), 61allowing an error to be returned to transmission attempts during this 62interval. 63The error is | 1.\" Copyright (c) 1985, 1986, 1988, 1994 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 47 unchanged lines hidden (view full) --- 56ARP will queue at most one packet while waiting for a response to a 57mapping request; 58only the most recently ``transmitted'' packet is kept. 59If the target host does not respond after several requests, 60the host is considered to be down for a short period (normally 20 seconds), 61allowing an error to be returned to transmission attempts during this 62interval. 63The error is |
| 64.Li EHOSTDOWN | 64.Er EHOSTDOWN |
| 65for a non-responding destination host, and | 65for a non-responding destination host, and |
| 66.Li EHOSTUNREACH | 66.Er EHOSTUNREACH |
| 67for a non-responding router. 68.Pp 69The ARP cache is stored in the system routing table as 70dynamically-created host routes. 71The route to a directly-attached Ethernet network is installed as a 72.Dq cloning 73route (one with the 74.Li RTF_CLONING --- 67 unchanged lines hidden --- | 67for a non-responding router. 68.Pp 69The ARP cache is stored in the system routing table as 70dynamically-created host routes. 71The route to a directly-attached Ethernet network is installed as a 72.Dq cloning 73route (one with the 74.Li RTF_CLONING --- 67 unchanged lines hidden --- |