[Xorp-users] OSPFv3 with /128 prefixes

[Patricio Latini]

In my case I had to define the link local addreses on the interface
definitions to get ospfv3 working. 

Hope it helps for you

    interface eth1 {
        description: ""
        disable: false
        discard: false
        unreachable: false
        management: false
        vif eth1 {
            disable: false
            address FD00:0000:0000:FF01::1 {
                prefix-length: 64
                disable: false
            }
            address fe80::211:11ff:fe22:3333 {
                prefix-length: 64
                disable: false
            }
        }
    }

BTW, FEC0/16 is deperecated as sire local address,  now FC00/8 or FD00/8
should be used in site local configurations.

Patricio

-----Original Message-----
From: xorp-users-bounces at xorp.org [mailto:xorp-users-bounces at xorp.org] On
Behalf Of maxd at inwind.it
Sent: Sunday, June 26, 2011 2:02 PM
To: xorp-users at xorp.org
Subject: [Xorp-users] OSPFv3 with /128 prefixes

Hi,
I have a set of Linux nodes connected by Ethernet links. On each link just
two nodes are attached, and each node may have more than one Ethernet
interface and hence be connected to more than one node. As a result, the
network has a partial mesh topology. XORP is installed on each node, and
configured to execute the ospfv3 protocol. Each interface of a node has 2
IPv6 addresses: a link-local (fe80) and a site-local address (fec0). The
site-local address has a
/128 prefix length. 
This /128 addresses are correctly advertised, and entries for these "single-
host networks" are created in all the nodes of the network but the peer node
connected to that interface. To make an example, if I have node A and node B
connected together, node A will not have an entry in its routing table for
the
/128 address on the interface of node B. Nevertheless, if node B had an
additional interface (connected to a node C), the address of this additional
interface would show up in the routing table of A. Is this normal? Notice
that the exact same configuration works fine with QUAGGA.
Any idea? I am also providing in the following my (very simple) xorp.conf
file

Thanks a lot!
Massimiliano



interfaces {
    interface eth0 {
	default-system-config
    }
    interface eth1 {
	default-system-config
    }
    interface eth2 {
	default-system-config
    }
    interface eth3 {
	default-system-config
    }
}

fea {
    unicast-forwarding6 {
        disable: false
    }
}

protocols {
    ospf6 0 {
	router-id: 0.0.0.1 #obviously, it changes for each node!
	area 0.0.0.0 {
	    area-type: "normal"
	    interface eth0 {
		vif eth0 {
		}
	    }
	    interface eth1 {
		vif eth1 {
		}
	    }
	    interface eth2 {
		vif eth2 {
		}
	    }
	    interface eth3 {
		vif eth3 {
		}
	    }
	}
    }
}

_______________________________________________
Xorp-users mailing list
Xorp-users at xorp.org
http://mailman.ICSI.Berkeley.EDU/mailman/listinfo/xorp-users