Date: Fri, 7 Jun 2002 17:27:57 +0200 From: Christophe Prevotaux <c.prevotaux@hexanet.fr> To: "Vladimir B. " Grebenschikov <vova@sw.ru> Cc: net@freebsd.org Subject: Re: [HELP] IPless VLAN interfaces Message-ID: <20020607172757.4f37c70c.c.prevotaux@hexanet.fr> In-Reply-To: <1023376206.470.40.camel@vbook.express.ru> References: <20020606125126.3d44145c.c.prevotaux@hexanet.fr> <1023373804.470.20.camel@vbook.express.ru> <3CFF7644.F4F5CC1@tel.fer.hr> <1023376206.470.40.camel@vbook.express.ru>
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try to setup this (it won't work) your example does not work ifconfig fxp0 inet 192.168.1.1/24 up ifconfig fxp0 inet 192.168.1.1/32 alias ifconfig fxp0 inet 192.168.1.1/32 alias <--- here it will not work anymore this is the same thing with vlan interfaces under FreeBSD you can't have more than 1 interface with the same IP/NETMASK ifconfig fxp0 inet 192.168.1.1/24 up ifconfig create vlan0 inet vlan 1 vlandev fxp0 192.168.1.1/32 up ifconfig create vlan1 inet vlan 2 vlandev fxp0 192.168.1.1/32 up <-- this does not work let's say for the example sake , that you want only to have 1 vlan on the fxp0 then you can setup the interface as shown above but you can't route anything thru it route add 192.168.1.2 -interface vlan0 will not route properly the packets thru vlan0 either because it is a /32 (AFAIK) and even if you could do it , then the problem is that you are limited to having only one vlan per interface, which sucks BIG TIME. under Linux you can have the equivalent of the following setup: 192.168.1.2/24 192.168.1.3/24 192.168.1.4/24 are machines behind the switch vlan 1 2 3 ports respectively ifconfig fxp0 inet 192.168.1.1/24 up ifconfig create vlan0 inet vlan 1 vlandev fxp0 192.168.1.1/24 up ifconfig create vlan1 inet vlan 2 vlandev fxp0 192.168.1.1/24 up ifconfig create vlan2 inet vlan 3 vlandev fxp0 192.168.1.1/24 up etc... etc... and then you do the equivalent of route add 192.168.1.2 -interface vlan0 route add 192.168.1.3 -interface vlan1 route add 192.168.1.4 -interface vlan2 and it works just fine, with no problems whatsoever. What I want to do is just this but under FreeBSD. My question is : How can I do it ? On 06 Jun 2002 19:10:06 +0400 "Vladimir B. " Grebenschikov <vova@sw.ru> wrote: > ÷ Thu, 06.06.2002, × 18:48, Marko Zec ÎÁÐÉÓÁÌ: > > > > # ifconfig fxp0 1.1.1.1/24 > > > # ifconfig vlan0 1.1.1.1/32 > > > # ifconfig vlan1 1.1.1.1/32 > > > # ifconfig vlan2 1.1.1.1/32 > > > > This will never work - you can't have the same IP address/mask on more than > > one interface. > > Sure ? Do have try cut and paste my example into xterm ? > > vbook#/sys/i386/compile/VBOOK 142_> ifconfig -a > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384 > inet 127.0.0.1 netmask 0xff000000 > fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > inet 192.168.1.111 netmask 0xffffff00 broadcast 192.168.1.255 > ether 08:00:46:04:31:b3 > media: Ethernet autoselect (100baseTX) > status: active > vbook#/sys/i386/compile/VBOOK 143_> ifconfig lo0 1.1.1.1/32 alias > vbook#/sys/i386/compile/VBOOK 144_> ifconfig fxp0 1.1.1.1/32 alias > vbook#/sys/i386/compile/VBOOK 145_> uname -a > FreeBSD vbook.express.ru 5.0-CURRENT FreeBSD 5.0-CURRENT #3: Fri May 24 > 15:49:21 MSD 2002 > root@vbook.express.ru:/usr/obj/usr/local/src/sys/VBOOK i386 > vbook#/sys/i386/compile/VBOOK 147_> ifconfig -a > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384 > inet 127.0.0.1 netmask 0xff000000 > inet 1.1.1.1 netmask 0xffffffff > fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > inet 192.168.1.111 netmask 0xffffff00 broadcast 192.168.1.255 > inet 1.1.1.1 netmask 0xffffffff broadcast 1.1.1.1 > ether 08:00:46:04:31:b3 > media: Ethernet autoselect (100baseTX) > status: active > > Both addresses are work: > > vbook#/sys/i386/compile/VBOOK 153_> ping -R -S 1.1.1.1 127.0.0.1 > PING 127.0.0.1 (127.0.0.1) from 1.1.1.1: 56 data bytes > 64 bytes from 127.0.0.1: icmp_seq=0 ttl=64 time=0.167 ms > RR: localhost (127.0.0.1) > 1.1.1.1 > 64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.150 ms (same > route) > vbook#/sys/i386/compile/VBOOK 154_> ping -n -R -S 1.1.1.1 192.168.1.109 > PING 192.168.1.109 (192.168.1.109) from 1.1.1.1: 56 data bytes > 64 bytes from 192.168.1.109: icmp_seq=0 ttl=64 time=1.836 ms > RR: 192.168.1.109 > 1.1.1.1 > 64 bytes from 192.168.1.109: icmp_seq=1 ttl=64 time=1.600 ms (same > route) > > (use loopback not best way to do this, but you can try any interface) > > > What OS are you running? > > # uname -a > FreeBSD vbook.express.ru 5.0-CURRENT FreeBSD 5.0-CURRENT #3: Fri May 24 > 15:49:21 MSD 2002 > root@vbook.express.ru:/usr/obj/usr/local/src/sys/VBOOK i386 > > Same setup works well on 4-STABLE > > > > Marko > > > -- > Vladimir B. Grebenschikov > vova@sw.ru, SWsoft, Inc. > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message > -- =============================================================== Christophe Prevotaux Email: c.prevotaux@hexanet.fr HEXANET SARL URL: http://www.hexanet.fr/ Z.A.C Les Charmilles Tel: +33 (0)3 26 79 30 05 3 Allée Thierry Sabine Direct: +33 (0)3 26 61 77 72 BP202 Fax: +33 (0)3 26 79 30 06 51686 Reims Cedex 2 FRANCE HEXANET Network Operation Center =============================================================== To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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