| arp.4 (5610c8a7ac39e055f9d17cb5f1fea10605f4867f) | arp.4 (478df1d534e9b1ca86261fcef37b46cc7b4c8f17) |
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| 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. --- 106 unchanged lines hidden (view full) --- 115.Sh MIB Variables 116The ARP protocol implements a number of configurable variables in 117.Va net.link.ether.inet 118branch 119of the 120.Xr sysctl 3 121MIB. 122.Bl -tag -width "log_arp_permanent_modify" | 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. --- 106 unchanged lines hidden (view full) --- 115.Sh MIB Variables 116The ARP protocol implements a number of configurable variables in 117.Va net.link.ether.inet 118branch 119of the 120.Xr sysctl 3 121MIB. 122.Bl -tag -width "log_arp_permanent_modify" |
| 123.It Va allow_multicast 124Should the kernel install ARP entries with multicast bit set in 125the hardware address. 126Installing such entries is RFC 1812 violation, but some prorietary 127load balancing techniques require routers on network to do so. 128Turned off by default. |
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| 123.It Va log_arp_movements 124Should the kernel log movements of IP addresses from one hardware 125address to an other. 126See 127.Sx DIAGNOSTICS 128below. 129Turned on by default. 130.It Va log_arp_permanent_modify --- 67 unchanged lines hidden (view full) --- 198.Va net.link.ether.inet.log_arp_wrong_iface 199is set to 1, which is the system's default behaviour. 200.It "arp: %x:%x:%x:%x:%x:%x attempts to modify permanent entry for %d.%d.%d.%d on %s" 201ARP has received an ARP reply that attempts to overwrite a permanent 202entry in the local ARP table. 203This error will only be logged if the sysctl 204.Va net.link.ether.inet.log_arp_permanent_modify 205is set to 1, which is the system's default behaviour. | 129.It Va log_arp_movements 130Should the kernel log movements of IP addresses from one hardware 131address to an other. 132See 133.Sx DIAGNOSTICS 134below. 135Turned on by default. 136.It Va log_arp_permanent_modify --- 67 unchanged lines hidden (view full) --- 204.Va net.link.ether.inet.log_arp_wrong_iface 205is set to 1, which is the system's default behaviour. 206.It "arp: %x:%x:%x:%x:%x:%x attempts to modify permanent entry for %d.%d.%d.%d on %s" 207ARP has received an ARP reply that attempts to overwrite a permanent 208entry in the local ARP table. 209This error will only be logged if the sysctl 210.Va net.link.ether.inet.log_arp_permanent_modify 211is set to 1, which is the system's default behaviour. |
| 212.It "arp: %x:%x:%x:%x:%x:%x is multicast" 213Kernel refused to install an entry with multicast hardware address. 214If you really want such addresses being installed, set the sysctl 215.Va net.link.ether.inet.allow_multicast 216to a positive value. |
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| 206.El 207.Sh SEE ALSO 208.Xr inet 4 , 209.Xr route 4 , 210.Xr arp 8 , 211.Xr ifconfig 8 , 212.Xr route 8 , 213.Xr sysctl 8 214.Rs 215.%A Plummer, D. 216.%B "An Ethernet Address Resolution Protocol" 217.%T RFC826 218.Re 219.Rs 220.%A Leffler, S.J. 221.%A Karels, M.J. 222.%B "Trailer Encapsulations" 223.%T RFC893 224.Re | 217.El 218.Sh SEE ALSO 219.Xr inet 4 , 220.Xr route 4 , 221.Xr arp 8 , 222.Xr ifconfig 8 , 223.Xr route 8 , 224.Xr sysctl 8 225.Rs 226.%A Plummer, D. 227.%B "An Ethernet Address Resolution Protocol" 228.%T RFC826 229.Re 230.Rs 231.%A Leffler, S.J. 232.%A Karels, M.J. 233.%B "Trailer Encapsulations" 234.%T RFC893 235.Re |