[j-nsp] Dcd complains about duplicate IPv6 link-local address

[Matti Saarinen]

Hello,

I've notice our M10 (running 5.4R3.2) generating the following log
entries (line wrapped):

dcd[535]: Warning: identical local address is found on route instance,
intf: at-0/0/0.200, family type: inet6


When I look at the interface addresses I see the following:

at-0/0/0.96     up    up   inet6 2001:708:310:722::2/64
                                 fe80::2a0:a5ff:fe12:6601/64
at-0/0/0.200    up    up   inet6 2001:708:310:723::2/64
                                 fe80::2a0:a5ff:fe12:6601/64
lo0.0           up    up   inet6 2001:708:310:100::2 --> ::/0
                                 fe80::2a0:a5ff:fe12:6601--> ::/0


As it can be seen all the interfaces have identical link-local
addresses.

The relevant configuration of the ATM interface looks like this:


unit 96 {
    encapsulation atm-snap;
    vci 0.96;
    inverse-arp;
    family iso;
    family inet6 {
        address 2001:708:310:722::2/64;
    }
}

unit 200 {
    encapsulation atm-snap;
    vci 0.200;
    inverse-arp;    
    family iso;     
    family inet6 {  
        address 2001:708:310:723::2/64;
    }               
}                   



Is the log message only informational? Could there be some problems
waiting to turn up later and the cause would be this one? I couldn't
find anything special with Google so I decided to ask here, too.


-- 
- Matti -