Date: Sat, 16 Aug 2003 15:58:17 -0500 From: "Charles Howse" <chowse@charter.net> To: <freebsd-questions@freebsd.org> Subject: Definition of interfaces in ifconfig Message-ID: <003f01c36439$1e758e80$04fea8c0@moe>
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Hi, When I do: # ifconfig I see the following interfaces listed: tx0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 inet 192.168.254.3 netmask 0xffffff00 broadcast 192.168.254.255 inet6 fe80::2e0:29ff:fe11:ff8a%tx0 prefixlen 64 scopeid 0x1 ether 00:e0:29:11:ff:8a media: Ethernet autoselect (100baseTX <full-duplex>) status: active lp0: flags=8810<POINTOPOINT,SIMPLEX,MULTICAST> mtu 1500 sl0: flags=c010<POINTOPOINT,LINK2,MULTICAST> mtu 552 faith0: flags=8002<BROADCAST,MULTICAST> mtu 1500 lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384 inet6 ::1 prefixlen 128 inet6 fe80::1%lo0 prefixlen 64 scopeid 0x5 inet 127.0.0.1 netmask 0xff000000 ppp0: flags=8010<POINTOPOINT,MULTICAST> mtu 1500 I entered sysinstall/configure/network/network devices and found out what they all are. The faith0 device was listed as unknown. I know tx0 is my one and only nic, we can keep it. lp0 is the parallel port, don't need it, don't plan to do any printing from this machine. lo0 is the loopback interface, that's cool. I know I don't need a PPP or SLIP interface, I have a LAN connection to the Internet, no modem. I was able to do: # ifconfig faith0 destroy And eliminate the faith0 <unknown> device. When I try that with sl0 and ppp0 I get an error: ifconfig: SIOCIFDESTROY: Invalid Argument. I realize that tx0 and lo0 are the only ones that are UP...are the others occupying space in memory? Can I get rid of some of these guys? How? Thanks, Charles
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