* SIP_DOMAIN A space-separated list of SIP domains
* OPTION_<num> Custom option received as base-16
* PREFIXES A space-separated list of prefixes currently assigned
- Format: <prefix>/<length>,preferred,valid,<excluded-prefix>/<length>
+ Format: <prefix>/<length>,preferred,valid[,excluded=<excluded-prefix>/<length>]
* ADDRESSES A space-separated list of addresses currently assigned
Format: <address>/<length>,preferred,valid
* RA_ADDRESSES A space-separated list of addresses from RA-prefixes