[leaf-user] Re: [VLAN] Problems Vlan+bridge
in short, your teacher is wrong. Here is the longer answer. The vlan support in Linux is similar to "trunk port" concept in switch configuration. That is, an VLAN interface in Linux will only pick up and process packets that has already been VLAN-tagged. As in your case, windows machine will only generate normal ethernet packet, and it can only be picked up by non-vlan ethernet interface, thus, your bridging between eth0 and eth1 will work while bridging between eth0.10 and eth1.10 won't. I don't quite understand why you want to do bridging between VLANs while the source and destination machine can only generate/accept non-vlan traffic. Maybe you just want to try out this particular VLAN+bridge combination. Regards, Leonard Ye On Wed, 2003-06-25 at 20:31, Jose Luis Abuelo Sebio wrote: > Hello everyone: > > I am trying to set up a easy configuration using a > bridge with Vlan Support, but I am having a few > problems with it and I don´t know why. Let´s see if > you can help me out here. > > Here I show you the configuration > > > --- > - PC1 - > --- > - eth0 192.168.1.127 > - > - > - > - eth0 (No IP address) (eth0.10 for the vlan) > --- > - br0 - > --- > - eth1 (No IP address) (eth1.10 for the vlan) > - > - > - eth0 192.168.1.129 > --- > - PC2 - > --- > > > What I am trying to get here is set a brige using > vlans. > >I am using Bering rc4 with bridge support and vlan > support. First I set the interfaces in the bridge Br0 > with no IP address > > ifconfig eth0 0.0.0.0 up > ifconfig eth1 0.0.0.0 up > > then I create the Vlans, eth0 and eth1 will belong > to vlan10 > vconfig add eth0 10 > vconfig add eth1 10 > > So with this if I go to /proc/net/vlan > I have the interfaces eth0.10 and eth1.10 with no IP > address as we want for the bridge right? > > I set eth0.10 and eth1.10 up with ifconfig > > ifconfig eth0.10 up > ifconfig eth1.10 up > > > now I create the bridge > > brctl addbr br0 > brctl stp br0 off > > so now I add the logical interfaces eth0.10 and > eth1.10 to the bridge > > brctl addif br0 eth0.10 > brctl addif br0 eth1.10 > > now I have what I think I need to et all the > configuration to work, right? > so I set the interface br0 up > ifconfig br0 up > > As I think and as I readed in the tutorials and > guides I found in the internet, this configuration > should work. I should be able to ping from PC1 to PC2 > because they are in the same vlan (PC1 and PC2 are > using windows98 because my teacher says that the hosts > that are not bridges dont have to support Vlan, so we > can work with the normal interfaces) > > The problem is that, this doesn´t work, and I don´t > now why I can not get a response for a ping to PC1 > from PC2 or from PC2 to PC1. > > I tryed to do this not using vlans, with the normal > physical interfaces in the bridge eth0 and eth1, > instead eth0.10 and eth1.10, and of course it works. > But what I am trying to set here is a bridge using > vlans, them if I set eth0 in vlan 10 and eth1 in vlan > 20 because the logical interfaces are not in the > bridge it works when it shouldn´t. > > How can I get this configuration and this Idea to > work? > > CAn any of you tell me why it doesn´t work? > > In the bridge, Do I have to use the the logical > (eth0.10 and eth1.10) or the physical interfaces (eth0 > and eth1)? > > Do I need PC1 and PC2 to support VLAN and get in PC1 > eth0.10 with an IP addres and the same in the PC2? > > > Can it be because with this I am working with trunck > ports when I should work with acces ports? If so, how > can I set the bridge to work with access ports. > > I will be really pleased if you can help me here, > because I need it for my final degree project and time > is running out. > > Thank you for your time, I apreciate it. > > Jose Luis Abuelo Sebio > > ___ > Yahoo! Sorteos - http://loteria.yahoo.es > Juega a la Lotería Primitiva sin salir de casa > ___ > VLAN mailing list - [EMAIL PROTECTED] > http://www.WANfear.com/mailman/listinfo/vlan > VLAN Page: http://scry.wanfear.com/~greear/vlan.html -- Leonard Ye <[EMAIL PROTECTED]> Ant in Research & Development Advanced Network Technology Laboratories Pte Ltd Tel: +65 68586789 Fax: +65 64874567 WWW: http://www.antlabs.com --- This SF.Net email is sponsored by: INetU Attention Web Developers & Consultants: Become An INetU Hosting Partner. Refer Dedicated Servers. We Manage Them. You Get 10% Monthly Commission! INetU Dedicated Managed Hosting http://www.inetu.net/partner/index.php leaf-user mailing list: [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/leaf-user SR FAQ: http://leaf-project.org/pub/doc/docmanager/docid_1891.ht
[leaf-user] Re: [VLAN] Problems Vlan+bridge
hi, But imagine that the idea is using two machines PC1 and PC2 with linux and support for VLan, would be the configuration ok? How can I get the access port support instead the trunk port? Then If the configuration is ok, If I put PC2 eth0.20 and the bridge br0 with eth1.20 and eth0.10, It is suposed that I can not see PC1 from PC2 because they are in diferent vlan´s,but I can. Why? Thanks again --- Leonard Ye <[EMAIL PROTECTED]> escribió: > in short, your teacher is wrong. > > Here is the longer answer. The vlan support in > Linux is similar to > "trunk port" concept in switch configuration. That > is, an VLAN > interface in Linux will only pick up and process > packets that has > already been VLAN-tagged. > > As in your case, windows machine will only generate > normal ethernet > packet, and it can only be picked up by non-vlan > ethernet interface, > thus, your bridging between eth0 and eth1 will work > while bridging > between eth0.10 and eth1.10 won't. > > I don't quite understand why you want to do bridging > between VLANs while > the source and destination machine can only > generate/accept non-vlan > traffic. Maybe you just want to try out this > particular VLAN+bridge > combination. > > Regards, > Leonard Ye > > On Wed, 2003-06-25 at 20:31, Jose Luis Abuelo Sebio > wrote: > > Hello everyone: > > > > I am trying to set up a easy configuration using > a > > bridge with Vlan Support, but I am having a few > > problems with it and I don´t know why. Let´s see > if > > you can help me out here. > > > > Here I show you the configuration > > > > > > --- > > - PC1 - > > --- > > - eth0 192.168.1.127 > > - > > - > > - > > - eth0 (No IP address) (eth0.10 for the vlan) > > --- > > - br0 - > > --- > > - eth1 (No IP address) (eth1.10 for the vlan) > > - > > - > > - eth0 192.168.1.129 > > --- > > - PC2 - > > --- > > > > > > What I am trying to get here is set a brige > using > > vlans. > > > >I am using Bering rc4 with bridge support and > vlan > > support. First I set the interfaces in the bridge > Br0 > > with no IP address > > > > ifconfig eth0 0.0.0.0 up > > ifconfig eth1 0.0.0.0 up > > > > then I create the Vlans, eth0 and eth1 will > belong > > to vlan10 > > vconfig add eth0 10 > > vconfig add eth1 10 > > > > So with this if I go to /proc/net/vlan > > I have the interfaces eth0.10 and eth1.10 with no > IP > > address as we want for the bridge right? > > > > I set eth0.10 and eth1.10 up with ifconfig > > > > ifconfig eth0.10 up > > ifconfig eth1.10 up > > > > > > now I create the bridge > > > > brctl addbr br0 > > brctl stp br0 off > > > > so now I add the logical interfaces eth0.10 and > > eth1.10 to the bridge > > > > brctl addif br0 eth0.10 > > brctl addif br0 eth1.10 > > > > now I have what I think I need to et all the > > configuration to work, right? > > so I set the interface br0 up > > ifconfig br0 up > > > > As I think and as I readed in the tutorials and > > guides I found in the internet, this configuration > > should work. I should be able to ping from PC1 to > PC2 > > because they are in the same vlan (PC1 and PC2 are > > using windows98 because my teacher says that the > hosts > > that are not bridges dont have to support Vlan, so > we > > can work with the normal interfaces) > > > > The problem is that, this doesn´t work, and I > don´t > > now why I can not get a response for a ping to PC1 > > from PC2 or from PC2 to PC1. > > > > I tryed to do this not using vlans, with the > normal > > physical interfaces in the bridge eth0 and eth1, > > instead eth0.10 and eth1.10, and of course it > works. > > But what I am trying to set here is a bridge using > > vlans, them if I set eth0 in vlan 10 and eth1 in > vlan > > 20 because the logical interfaces are not in the > > bridge it works when it shouldn´t. > > > > How can I get this configuration and this Idea > to > > work? > > > > CAn any of you tell me why it doesn´t work? > > > > In the bridge, Do I have to use the the logical > > (eth0.10 and eth1.10) or the physical interfaces > (eth0 > > and eth1)? > > > > Do I need PC1 and PC2 to support VLAN and get in > PC1 > > eth0.10 with an IP addres and the same in the PC2? > > > > > > Can it be because with this I am working with > trunck > > ports when I should work with acces ports? If so, > how > > can I set the bridge to work with access ports. > > > > I will be really pleased if you can help me here, > > because I need it for my final degree project and > time > > is running out. > > > > Thank you for your time, I apreciate it. > > > > Jose Luis Abuelo Sebio > > > > > ___ > > Yahoo! Sorteos - http://loteria.yahoo.es > > Juega a la Lotería Primitiva sin salir de casa > > ___ > > VLAN mailing list - [EMAIL PROTECTED] > > http://www.WANfear.com/mailman/
[leaf-user] Re: [VLAN] Problems Vlan+bridge
If PC1 and PC2 are VLAN capable machine, and interfaces used are of the correct VLAN tag, the whole system will work. The access port support can be achieved by using combination of non-vlan interface, vlan interface and bridge. For an example, you want to make eth0 as access port for vlan 10, eth1 as access port for vlan 20, and eth2 as trunk port for vlan 10 and 20: create br1 : eth0 eth2.10 create br2 : eth1 eth2.20 Bridging between VLANs are something not available in most comercial switches. Linux just provides this powerful tool for you to do funny things. Logically, you can treat it as bridging between two virtual media: VLAN 10 media and VLAN 20 media. Regards, Leonard Ye - Original Message - From: "Jose Luis Abuelo Sebio" <[EMAIL PROTECTED]> To: "Linux 802.1Q VLAN" <[EMAIL PROTECTED]>; "LRP_User" <[EMAIL PROTECTED]> Sent: Wednesday, June 25, 2003 22:45 Subject: Re: [VLAN] Problems Vlan+bridge hi, But imagine that the idea is using two machines PC1 and PC2 with linux and support for VLan, would be the configuration ok? How can I get the access port support instead the trunk port? Then If the configuration is ok, If I put PC2 eth0.20 and the bridge br0 with eth1.20 and eth0.10, It is suposed that I can not see PC1 from PC2 because they are in diferent vlan´s,but I can. Why? Thanks again --- Leonard Ye <[EMAIL PROTECTED]> escribió: > in short, your teacher is wrong. > > Here is the longer answer. The vlan support in > Linux is similar to > "trunk port" concept in switch configuration. That > is, an VLAN > interface in Linux will only pick up and process > packets that has > already been VLAN-tagged. > > As in your case, windows machine will only generate > normal ethernet > packet, and it can only be picked up by non-vlan > ethernet interface, > thus, your bridging between eth0 and eth1 will work > while bridging > between eth0.10 and eth1.10 won't. > > I don't quite understand why you want to do bridging > between VLANs while > the source and destination machine can only > generate/accept non-vlan > traffic. Maybe you just want to try out this > particular VLAN+bridge > combination. > > Regards, > Leonard Ye > > On Wed, 2003-06-25 at 20:31, Jose Luis Abuelo Sebio > wrote: > > Hello everyone: > > > > I am trying to set up a easy configuration using > a > > bridge with Vlan Support, but I am having a few > > problems with it and I don´t know why. Let´s see > if > > you can help me out here. > > > > Here I show you the configuration > > > > > > --- > > - PC1 - > > --- > > - eth0 192.168.1.127 > > - > > - > > - > > - eth0 (No IP address) (eth0.10 for the vlan) > > --- > > - br0 - > > --- > > - eth1 (No IP address) (eth1.10 for the vlan) > > - > > - > > - eth0 192.168.1.129 > > --- > > - PC2 - > > --- > > > > > > What I am trying to get here is set a brige > using > > vlans. > > > >I am using Bering rc4 with bridge support and > vlan > > support. First I set the interfaces in the bridge > Br0 > > with no IP address > > > > ifconfig eth0 0.0.0.0 up > > ifconfig eth1 0.0.0.0 up > > > > then I create the Vlans, eth0 and eth1 will > belong > > to vlan10 > > vconfig add eth0 10 > > vconfig add eth1 10 > > > > So with this if I go to /proc/net/vlan > > I have the interfaces eth0.10 and eth1.10 with no > IP > > address as we want for the bridge right? > > > > I set eth0.10 and eth1.10 up with ifconfig > > > > ifconfig eth0.10 up > > ifconfig eth1.10 up > > > > > > now I create the bridge > > > > brctl addbr br0 > > brctl stp br0 off > > > > so now I add the logical interfaces eth0.10 and > > eth1.10 to the bridge > > > > brctl addif br0 eth0.10 > > brctl addif br0 eth1.10 > > > > now I have what I think I need to et all the > > configuration to work, right? > > so I set the interface br0 up > > ifconfig br0 up > > > > As I think and as I readed in the tutorials and > > guides I found in the internet, this configuration > > should work. I should be able to ping from PC1 to > PC2 > > because they are in the same vlan (PC1 and PC2 are > > using windows98 because my teacher says that the > hosts > > that are not bridges dont have to support Vlan, so > we > > can work with the normal interfaces) > > > > The problem is that, this doesn´t work, and I > don´t > > now why I can not get a response for a ping to PC1 > > from PC2 or from PC2 to PC1. > > > > I tryed to do this not using vlans, with the > normal > > physical interfaces in the bridge eth0 and eth1, > > instead eth0.10 and eth1.10, and of course it > works. > > But what I am trying to set here is a bridge using > > vlans, them if I set eth0 in vlan 10 and eth1 in > vlan > > 20 because the logical interfaces are not in the > > bridge it works when it shouldn´t. > > > > How can I get this configuration and this Idea > to > > work? > > > > CAn any of you tell me why it doesn´t work? > > > > In the bridge, Do I have to use the the log
