D-Link DSR-150N DSR-150 User Manual - Page 22

Unified Services Router User Manual A s wit h an IPv 4 LA N n et wo rk, t h e ro u t er h as a DHCPv 6 s erv er. If en ab led , t h e router as s igns an IP addres s within the s pecified range plus additional s pecified in fo rmat io n t o an y LA N PC t h at req u es t s DHCP s erv ed ad d res s es . The following s ettings are us ed to configure the DHCPv6 s erver:  DHCP M o d e: Th e IPv 6 DHCP s erv er is eit h er s t at eless o r s t at efu l. If s t ateless is s elect ed an ext ern al IPv 6 DHCP s erv er is n o t req u ired as t h e IPv 6 LA N h o s t s are au t o -co nfig ured b y t h is ro u ter. In t h is case t h e ro u ter ad vertis emen t d aemo n (RA DVD) mu s t b e co n fig u red o n t h is d ev ice an d ICM Pv 6 ro u t er d is co v ery mes s ag es are u s ed b y t h e h o s t fo r au t o -co n fig u rat io n . Th ere are n o man ag ed ad d res ses t o s erv e t h e LA N n o d es. If s t at efu l is s elected t h e IPv 6 LA N h o s t will rely o n an ext ern al DHCPv 6 s erv er t o p ro v id e req u ired co n fig u rat io n s et t in g s  Th e d o main n ame o f t h e DHCPv 6 s erv er is an o p t io n al s et t in g  Server Preference is us ed to indicate the pre ference level of this DHCP s erver. DHCP ad v ert is e mes s ag es wit h t h e h ig h es t s erv er p referen ce v alu e t o a LA N h o s t are p referred o v er o t h er DHCP s erv er ad v ert is e mes s ag es . Th e d efau lt is 255.  Th e DNS s erv er d et ails can b e man u ally en t ered h ere (p rimary / s eco n d ary o p t io n s . A n alt ern at iv e is t o allo w t h e LA N DHCP clien t t o receiv e t h e DNS s erv er d et ails fro m t h e ISP d irect ly . By s elect in g Us e DNS p ro xy , t h is ro u t er act s as a p ro xy fo r all DNS req u es t s an d co mmu n icat es wit h t h e ISP's DNS s erv ers (a W A N co n fig u ra t io n p aramet er).  Primary an d Seco n d ary DNS s erv ers : If t h ere is co n fig u red d o main n ame s y s t em (DNS) s erv ers av ailab le o n t h e LA N en t er t h e IP ad d res s es h ere.  Leas e/ Reb in d t ime s et s t h e d uratio n o f t h e DHCPv 6 leas e fro m t h is ro u t er to the LA N clien t . IPv6 Address Pools This feature allows you to define the IPv6 delegation prefix for a range of IP addres ses to be s erved by the gateway's DHCPv6 s erver . Us ing a delegation prefix y o u can au t omat e t he p ro cess o f in fo rmin g o t h er n et workin g eq uip men t o n t h e LA N o f DHCP in fo rmat io n s p ecific fo r t h e as s ig n ed p refix. Prefix Delegation The following s ettings are us ed to configure the Prefix Delegation:  Prefix Delegation: Select this option to en able prefix delegation in DHCPv6 s erver. This option can be s elected only in Stateles s Addres s Auto Co n fig u rat io n mo d e o f DHCPv 6 s erv er. 20