Date: Mon, 8 Mar 2004 01:19:35 -0800 (PST) From: Jerry Jensen <youknicks@yahoo.com> To: "."@babolo.ru Cc: freebsd-net@freebsd.org Subject: Re: multiple logical interfaces Message-ID: <20040308091935.59513.qmail@web41811.mail.yahoo.com> In-Reply-To: <1078642138.728121.16568.nullmailer@cicuta.babolo.ru>
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How can this be done programmatically rather than from the command line? Code snippets would be handy. Thanks --- .@babolo.ru wrote: > > Actually, what I want is the equivalent of this > (which > > is in Linux) on FreeBSD. Note the ip address > > associated with each of the logical interfaces > > (lo:XX). > And what? > 0cicuta~(11)#ifconfig lo0 > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu > 16384 > inet6 ::1 prefixlen 128 > inet6 fe80::1%lo0 prefixlen 64 scopeid 0x7 > inet 127.0.0.1 netmask 0xffffff00 > 0cicuta~(12)#ifconfig lo1 > lo1: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu > 16384 > inet 127.0.1.1 netmask 0xffffff00 > inet 127.0.1.2 netmask 0xffffffff > 0cicuta~(13)#ifconfig lo2 > lo2: flags=8008<LOOPBACK,MULTICAST> mtu 16384 > 0cicuta~(14)#ifconfig lo3 > lo3: flags=8008<LOOPBACK,MULTICAST> mtu 16384 > 0cicuta~(15)#ifconfig lo3 192.168.0.1/24 > 0cicuta~(16)#ifconfig lo3 > lo3: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu > 16384 > inet 192.168.0.1 netmask 0xffffff00 > > The only disadvantage in > 0cicuta~(17)#uname -a > FreeBSD cicuta.babolo.ru 4.9-RC FreeBSD 4.9-RC #0: > Fri Oct 10 11:37:45 MSD 2003 > babolo@cicuta.babolo.ru:/tmp/babolo/usr/src/sys/cicuta > i386 > is that lo can't be created dynamically. > > One more quection: why not alias the lo0 ? > > > eth0 Link encap:Ethernet HWaddr > > 00:06:5B:19:55:EE > > inet addr:10.2.1.122 > Bcast:10.255.255.255 > > Mask:255.0.0.0 > > UP BROADCAST RUNNING MULTICAST MTU:1500 > > > Metric:1 > > RX packets:5903525 errors:0 dropped:0 > > overruns:0 frame:0 > > TX packets:5337692 errors:0 dropped:0 > > overruns:0 carrier:0 > > collisions:0 txqueuelen:1000 > > Interrupt:16 Base address:0xecc0 > > Memory:fe2ff000-fe2ff038 > > > > eth1 Link encap:Ethernet HWaddr > > 00:06:5B:19:55:EF > > inet addr:192.168.6.122 > Bcast:192.168.6.255 > > Mask:255.255.255.0 > > UP BROADCAST RUNNING MULTICAST MTU:1500 > > > Metric:1 > > RX packets:1818518022 errors:2 dropped:0 > > overruns:263 frame:2 > > TX packets:1182175968 errors:0 dropped:0 > > overruns:0 carrier:0 > > collisions:0 txqueuelen:1000 > > Interrupt:17 Base address:0xec80 > > Memory:fe2fe000-fe2fe038 > > > > lo Link encap:Local Loopback > > inet addr:127.0.0.1 Mask:255.0.0.0 > > UP LOOPBACK RUNNING MTU:16436 Metric:1 > > RX packets:199 errors:0 dropped:0 > overruns:0 > > frame:0 > > TX packets:199 errors:0 dropped:0 > overruns:0 > > carrier:0 > > collisions:0 txqueuelen:0 > > > > lo:10 Link encap:Local Loopback > > inet addr:202.175.33.10 > > Mask:255.255.255.255 > > UP LOOPBACK RUNNING MTU:16436 Metric:1 > > > > lo:11 Link encap:Local Loopback > > inet addr:193.65.100.99 > > Mask:255.255.255.255 > > UP LOOPBACK RUNNING MTU:16436 Metric:1 > > > > lo:12 Link encap:Local Loopback > > inet addr:193.65.100.100 > > Mask:255.255.255.255 > > UP LOOPBACK RUNNING MTU:16436 Metric:1 > > > > lo:13 Link encap:Local Loopback > > inet addr:210.183.28.42 > > Mask:255.255.255.255 > > UP LOOPBACK RUNNING MTU:16436 Metric:1 > > > > --- .@babolo.ru wrote: > > > > is it possible in freebsd to have multiple > logical > > > > interfaces associated with say the loopback > > > interface? > > > > if so, how does one do this programmatically > (as > > > > opposed to from the command line). > > > > > > > > need this for building traffic generators that > > > need to > > > > simulate a bunch of different ip sources. > solaris > > > > allows it as does linux i believe. > > > > thx. > > > Is it what you want? > > > > > > > ifconfig -a | grep lo > > > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> > mtu > > > 16384 > > > inet6 fe80::1%lo0 prefixlen 64 scopeid > 0xa > > > lo1: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> > mtu > > > 16384 > > > lo2: flags=8008<LOOPBACK,MULTICAST> mtu 16384 > > > lo3: flags=8008<LOOPBACK,MULTICAST> mtu 16384 > > > > > > If it is, there is from kernel config: > > > > > > > grep loop /sys/i386/conf/garkin > > > pseudo-device loop 4 # Network > loopback > > > > > > _______________________________________________ > > > freebsd-net@freebsd.org mailing list > > > > > > http://lists.freebsd.org/mailman/listinfo/freebsd-net > > > To unsubscribe, send any mail to > > "freebsd-net-unsubscribe@freebsd.org" > > > > > > __________________________________ > > Do you Yahoo!? > > Yahoo! Search - Find what you?re looking for > faster > > http://search.yahoo.com > > > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" __________________________________ Do you Yahoo!? Yahoo! Search - Find what you’re looking for faster http://search.yahoo.com
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