Unified Services Router    User Manual 
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seconds. Upon expiration of this value, a new RADVD exchange  must take 
place between the host and this router.  
Figure 3: Configuring the Router Advertisement Daemon 
 
 
Advertisement Prefixes 
Advanced > IPv6 > IPv6 LAN > Advertisement Prefixes 
The router advertisements configured with  advertisement prefixes allow this  router 
to  inform  hosts  how  to  perform  stateless  address  auto  configuration.  Router 
advertisements  contain  a  list  of  subnet  prefixes  that  allow  the  router  to  determine 
neighbors and whether the host is on the same link as the router.  
The following prefix options are available for the router advertisements: 
  IPv6  Prefix  Type:  To  ensure  hosts  support  IPv6  to  IPv4  tunnel  select  the 
6to4  prefix  type.  Selecting  Global/Local/ISATAP  will  allow  the  nodes  to 
support all other IPv6 routing options 
  SLA ID: The SLA ID (Site-Level Aggregation Identifier)  is available when 
6to4  Prefixes  are  selected.  This  should  be  the  interface  ID  of  the  router‘s 
LAN interface used for router advertisements.