Dell PowerEdge M420 Dell PowerConnect M6220/M6348/M8024 Switches Configuration - Page 130

Dhcpv6

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ip address 10.10.10.1 255.255.255.0 ip ospf area 0.0.0.0 exit interface vlan 2 routing ipv6 enable ipv6 address 2020:2::2/64 ipv6 ospf ipv6 ospf network point-to-point exit interface tunnel 0 ipv6 address 2001::2/64 tunnel mode ipv6ip tunnel source 10.10.10.1 tunnel destination 20.20.20.1 ipv6 ospf ipv6 ospf network point-to-point exit interface loopback 0 ip address 2.2.2.2 255.255.255.0 exit exit DHCPv6 DHCP is generally used between clients (e.g., hosts) and servers (e.g., routers) for the purpose of assigning IP addresses, gateways, and other networking definitions such as DNS, NTP, and/or SIP parameters. However, IPv6 natively provides for autoconfiguration of IP addresses through IPv6 Neighbor Discovery Protocol (NDP) and through the use of Router Advertisement messages. Thus, the role of DHCPv6 within the network is different than that of DHCPv4 in that it is less relied upon for IP address assignment. DHCPv6 server and client interactions are described by RFC 3315 [6]. There are many similarities between DHCPv6 and DHCPv4 interactions and options, but the messages and option definitions are sufficiently different such that there is no DHCPv4 to DHCPv6 migration or interoperability. DHCPv6 incorporates the notion of the "stateless" server, where DHCPv6 is not used for IP address assignment to a client; rather, it only provides other networking information such as DNS, NTP, and/or SIP information. The stateless server behavior is described by RFC 3736 [7], which simply contains descriptions of the portions of RFC 3315 that are necessary for "stateless" server behavior. In order for a router to drive a DHCPv6 client to utilize stateless DHCPv6, the "other stateful configuration" option must be configured for neighbor discovery on the corresponding IPv6 router interface. This, in turn, 130 IPv6

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130
IPv6
ip address 10.10.10.1 255.255.255.0
ip ospf area 0.0.0.0
exit
interface vlan 2
routing
ipv6 enable
ipv6 address 2020:2::2/64
ipv6 ospf
ipv6 ospf network point-to-point
exit
interface tunnel 0
ipv6 address 2001::2/64
tunnel mode ipv6ip
tunnel source 10.10.10.1
tunnel destination 20.20.20.1
ipv6 ospf
ipv6 ospf network point-to-point
exit
interface loopback 0
ip address 2.2.2.2 255.255.255.0
exit
exit
DHCPv6
DHCP is generally used between clients (e.g., hosts) and servers (e.g., routers) for the purpose of
assigning IP addresses, gateways, and other networking definitions such as DNS, NTP, and/or SIP
parameters. However, IPv6 natively provides for autoconfiguration of IP addresses through IPv6
Neighbor Discovery Protocol (NDP) and through the use of Router Advertisement messages. Thus, the
role of DHCPv6 within the network is different than that of DHCPv4 in that it is less relied upon for IP
address assignment.
DHCPv6 server and client interactions are described by RFC 3315 [6]. There are many similarities
between DHCPv6 and DHCPv4 interactions and options, but the messages and option definitions are
sufficiently different such that there is no DHCPv4 to DHCPv6 migration or interoperability.
DHCPv6 incorporates the notion of the “stateless” server, where DHCPv6 is not used for IP address
assignment to a client; rather, it only provides other networking information such as DNS, NTP, and/or
SIP information. The stateless server behavior is described by RFC 3736 [7], which simply contains
descriptions of the portions of RFC 3315 that are necessary for “stateless” server behavior. In order for a
router to drive a DHCPv6 client to utilize stateless DHCPv6, the “other stateful configuration” option
must be configured for neighbor discovery on the corresponding IPv6 router interface. This, in turn,