Date: Mon, 5 Nov 2012 19:43:53 GMT From: Mateusz Kwiatkowski <mateusz.kwiatkowski@atlashost.eu> To: freebsd-gnats-submit@FreeBSD.org Subject: docs/173405: Undocumented feature of ifconfig (reading configuration from rc.conf) Message-ID: <201211051943.qA5Jhri6060737@red.freebsd.org> Resent-Message-ID: <201211051950.qA5Jo1lM040629@freefall.freebsd.org>
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>Number: 173405 >Category: docs >Synopsis: Undocumented feature of ifconfig (reading configuration from rc.conf) >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-doc >State: open >Quarter: >Keywords: >Date-Required: >Class: doc-bug >Submitter-Id: current-users >Arrival-Date: Mon Nov 05 19:50:00 UTC 2012 >Closed-Date: >Last-Modified: >Originator: Mateusz Kwiatkowski >Release: 9.0-RELEASE >Organization: Atlashost >Environment: FreeBSD gw-5 9.0-RELEASE FreeBSD 9.0-RELEASE #1: Wed May 23 23:28:34 CEST 2012 root@gw-5:/usr/obj/usr/src/sys/NPHXGW amd64 >Description: If configuration for NIC exists in /etc/rc.conf, ifconfig automatically configures interface when created. >How-To-Repeat: 1. Create configuration in /etc/rc.conf for non existing NIC: vlans_em0="181" ifconfig_em0_181="inet6 2001:123:0:0::e001:121/126" 2. Bring up interface manually: ifconfig em0.181 create 3. Interface is created with IP from rc.conf: # ifconfig em0.181 em0.181: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=3<RXCSUM,TXCSUM> ether 52:54:00:74:bd:1b inet6 2001:123:0:0::e001:121 prefixlen 126 duplicated inet6 fe80::5054:ff:fe74:bd1b%em0.181 prefixlen 64 scopeid 0x4 nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> media: Ethernet autoselect (1000baseT <full-duplex>) status: active vlan: 181 parent interface: em0 This works both for IPv4 and IPv6. >Fix: This feature should be documented in ifconfig(8) manual. >Release-Note: >Audit-Trail: >Unformatted:
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