Every interface can have 1 or more IPv6 IP&#x27;s. Link-local and N number of others, where N is 0 or more.<p>What kind of tweaks have you required in your deployments because of this?<p>DSR is a special use case, and with each interface having a link-local address means you don&#x27;t need to provide globally unique addresses, because the source&#x2F;destination specify their route explicitly, each hop can use their link-local address. DSR would also require modification if it was using an extended version of IPv4...