[Xorp-hackers] xorp: enable IGMP/PIM-SM over a VLAN interface on Linux

[Ray Soucy]

Define any VLAN interface as you would a physical interface in your
interfaces block.

e.g.

----8<----
interfaces {
  interface eth0 {
    disable: false
    discard: false
    unreachable: false
    management: false
    vif eth0 {
      disable: false
    }
  }
  interface "vlan300" {
    disable: false
    discard: false
    unreachable: false
    management: false
    vif "vlan300" {
      disable: false
      address 192.0.3.1 {
          prefix-length: 24
          disable: false
      }
    }
  }
  interface "vlan800" {
    disable: false
    discard: false
    unreachable: false
    management: false
    vif "vlan800" {
      disable: false
      address 192.0.8.1 {
          prefix-length: 24
          disable: false
      }
    }
  }
}

----8<----

And don't forget plumbing block:

----8<----

plumbing {
    mfea4 {
        disable: false
        interface "vlan300" {
            vif "vlan300" {
                disable: false
            }
        }
        interface "vlan800" {
            vif "vlan800" {
                disable: false
            }
        }
        interface "register_vif" {
            vif "register_vif" {
                disable: false
            }
        }
    }
}

----8<----


On Tue, Dec 6, 2011 at 4:15 PM, frank hu <frank.1975.hu at gmail.com> wrote:
> Hi,
>
> sorry for asking some silly questions again. I am still battling to get xorp
> to work for multicast routing. I hope that this is just because I am not
> familar with xorp usage.
>
> On the Ubuntu system, I created 2 VLAN interfaces using "vconfig", say
> vlan800 and vlan300 on top of the real physical interface eth0. They have
> IPv4 addresses assigned to them.
>
> To enable IGMP and PIM-SM4 over it
>
> set protocols igmp interface vlan800 vif vlan800 disable false
> set protocols igmp interface vlan800 vif vlan800 version 2
>
> set protocols pimsm4 interface vlan800 vif vlan800 disable false
> set protocols pimsm4 interface vlan300 vif vlan300 disable false
>
> when I commit, I got the following error: "Missing mandatory configuration
> node "$(@.targetname)" required by node "protocols igmp".
>
> Then I tweaked the configuration above o "...interface eth0 vif vlan800" or
> "...interface eth0 vif vlan300". I found that that configuration is
> accepted. However, after I commit it, I don't see the PIM-v2 hello messages
> were sent out.
>
> Then I researched xorp documentation a bit and found that it provided CLIs
> to create VLAN interfaces.
>
> User manual shows the sample configuration:
> protocols {
>    igmp {
>      interface dc0 {
>         vif dc0 {
>           /* version: 2 */
>           /* enable-ip-router-alert-option-check: false */
>           /* query-interval: 125 */
>           /* query-last-member-interval: 1 */
>           /* query-response-interval: 10 */
>           /* robust-count: 2 */
>      }
>    }
> }
>
> So I should be able to just reference the VLAN interfaces vlan800 and
> vlan300 (which are recognized by ifconfig on my Linux)...
>
> Am I talking sense here?
>
> Thanks for any help!!
>
> Frank
>
> _______________________________________________
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> Xorp-hackers at icir.org
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>



-- 
Ray Soucy

Epic Communications Specialist

Phone: +1 (207) 561-3526

Networkmaine, a Unit of the University of Maine System
http://www.networkmaine.net/