Robert Moskowitz wrote: > Can someone help me out with radvd configuration? Email directly. > > I am running radvd 0.9.1 on Centos 5.2. The server is sending > announcements on multiple VLANs successfully. The clients are Centos > 5.2 and are getting their IPv6 addresses. > > Here is the current challenge: > > I am working with HIP (hipl codebase) on IPv6 and I need to test out > HIP mobility. So at this phase, I am unplugging the notebook from > one vlan and plugging it into another. The system quickly aquires > the new IPv6 global address, but does not loose the old address. So > I need some help configuring things....
Why do you need the old address to get lost? Are you simply afraid of seeing it printed on screen when 'ifconfig -a'? Talking standards, the old address should get deprecated (section 5.5.4 Address Lifetime Expiry of RFC 4862) but still the host should forward packets (addressed to that address) to the application. Talking implementation, the preferred lifetime value comes from the received RA. So just put the preferred lifetime value very short on each RA, and the frequency of sending RAs very high and probably it will work as intended. These are in /etc/radvd.conf or /usr/local/etc/radvd.conf. Alternatively, think handover implementation in the end node. In practice few chances are that one needs to unplug a cable and plug it into another socket (VLAN change) to do mobility. One would do HIP and 'mobility' more by using wifi-like devices. In these cases one writes software for 'handover management' whereby one instructs the MN to change the ESSID of the wifi card, following which one could also do 'ifconfig delete old address' or 'ip -6 delete old address' - it gets lost. These are actually to alternative ways to control mobility: in the network by changing the RA parameters and in the end node by controlling the handover event sequence. Alex > > I would have asked on [EMAIL PROTECTED], but it seems the list is moving > and I can't subscribe right now. > > -------------------------------------------------------------------- > IETF IPv6 working group mailing list [email protected] Administrative > Requests: https://www.ietf.org/mailman/listinfo/ipv6 > -------------------------------------------------------------------- > ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ -------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
