Difference between revisions of "Router solicitation and router advertisement messages"

Latest revision as of 13:28, 13 April 2021

Dynamic address configuration methods(i.e. SLACC, stateless, and stateful) in IPv6 do not provide the prefix, prefix length, and default gateway to the clients.
A Client sends a ND(Neighbor Discovery) Router Solicitation(RS) when it needs prefix, prefix length, default gateway, and other information. This typically occurs when the host has just been powered on and has been configured to obtain its IP address automatically.
The host obtains its prefix, prefix length, and default gateway from the Router Advertisement(RA) message from a router.

You have to configure the ND(Neighbor Discovery) Protocol in your router and the following is an example configuration of the Extreme XOS version 15.3.2.11.

ROUTER# configure "vlan10" router-discovery ipv6 add prefix 2000:1::1/64
ROUTER# configure "vlan20" router-discovery ipv6 add prefix 2000:2::1/64
ROUTER# configure "vlan30" router-discovery ipv6 add prefix 2000:3::1/64

ROUTER# enable router-discovery ipv6 "vlan10"
ROUTER# enable router-discovery ipv6 "vlan20"
ROUTER# enable router-discovery ipv6 "vlan30"

@@ Line 1: / Line 1: @@
-DHCPv6 서버는 IP 주소 및 DNS와 같은 추가 옵션만 할당 하고 기본 게이트웨이(gateway) 및 prefix는 할당하지 않습니다.<br>
+Dynamic address configuration methods(i.e. SLACC, stateless, and stateful) in IPv6 do not provide the prefix, prefix length, and default gateway to the clients. <br>
-기본 게이트웨이(gateway) 및 prefix는 클라이언트 호스트가 위치한 라우터로부터 직접 할당받게되는데 이때 사용되는 메시지가 ND(Neighbor Discovery) Router solicitaion과 Router advertisement message 입니다.<br>
+A Client sends a ND(Neighbor Discovery) Router Solicitation(RS) when it needs prefix, prefix length, default gateway, and other information. This typically occurs when the host has just been powered on and has been configured to obtain its IP address automatically.<br>
+The host obtains its prefix, prefix length, and default gateway from the Router Advertisement(RA) message from a router.
-Router는 주기적으로 Router Advertisement(RA) 메시지를 전송하며 또한 클라이언트로 부터의 Router Solicitaion(RS)에 대해 읃답합니다.<br>
+You have to configure the ND(Neighbor Discovery) Protocol in your router and the following is an example configuration of the Extreme XOS version 15.3.2.11.
-이렇게 호스트는 기본 게이트웨이, prefix 그리고 prefix length가 필요할 때 RS를 전송합니니다.
-따라서 라우터에 RA 설정이 반드시 되어있어하며 아래는 ExtremeXOS version 15.3.2.11에서 설정한 예시입니다.
 <pre>
 ROUTER# configure "vlan10" router-discovery ipv6 add prefix 2000:1::1/64
@@ Line 14: / Line 12: @@
 ROUTER# enable router-discovery ipv6 "vlan20"
 ROUTER# enable router-discovery ipv6 "vlan30"
-ROUTER# enable router-discovery ipv6 vlan VLAN10
-ROUTER# enable router-discovery ipv6 vlan VLAN20
-ROUTER# enable router-discovery ipv6 vlan vlan30
 </pre>