53
[Sysname-dhcp6-pool-p1] gateway-list 10::1
ipv6 dhcp advertise address-route
Use
ipv6 dhcp advertise address-route
to enable the DHCPv6 relay agent to advertise
host routes for IPv6 addresses assigned to DHCP clients.
Use
undo ipv6 dhcp advertise address-route
to disable the DHCPv6 relay agent from
advertising host routes for IPv6 addresses assigned to DHCPv6 clients.
Syntax
ipv6 dhcp advertise address-route
undo ipv6 dhcp advertise address-route
Default
The DHCPv6 relay agent does not advertise host routes for IPv6 addresses assigned to DHCPv6
clients.
Views
System view
Predefined user roles
network-admin
Usage guidelines
In a network where ND cannot resolve global unicast addresses, network devices cannot generate
ND entries for all global unicast addresses. If a DHCPv6 client obtains a global unicast address, the
neighboring devices do not have the ND entries for this global unicast address, thus cannot forward
the packets destined for the client. To resolve this problem, enable the DHCPv6 relay agent to
advertise host routes for assigned IPv6 addresses in DHCP replies. The advertised route information
is as follows:
•
The destination IP address is the assigned IPv6 address.
•
The next hop is the link-local address of the DHCPv6 client.
•
The output interface is the interface that forwards the reply.
After the relay agent receives a packet destined for the assigned IPv6 address, the relay agent looks
up the routing table for the next hop. ND resolution can succeed because the next hop is the
link-local address of the client. The relay agent searches the ND table for the MAC address of the
client based on the next hop and then forwards the packet.
Before using this command on the DHCPv6 relay agent, enable the DHCPv6 relay agent to record
DHCPv6 relay entries first.
Examples
# Enable the DHCPv6 relay agent to advertise host routes for IPv6 addresses assigned to DHCPv6
clients.
<Sysname> system-view
[Sysname] ipv6 dhcp advertise address-route
Related commands
ipv6 dhcp relay client-information record
Summary of Contents for SOHO IE4300
Page 285: ...i Contents Tcl commands 1 cli 1 tclquit 1 tclsh 2...
Page 288: ...i Contents Python commands 1 exit 1 python 1 python filename 2...
Page 291: ...i Contents Automatic configuration commands 1 autodeploy udisk enable 1...
Page 323: ...25 Sysname Ten GigabitEthernet1 0 51 undo shutdown Related commands irf port...
Page 465: ...ii stp vlan enable 55 vlan mapping modulo 55...
Page 602: ...12 Related commands display mvrp statistics...
Page 609: ...i Contents VLAN mapping commands 1 display vlan mapping 1 vlan mapping 2...
Page 678: ...9 Related commands reset pppoe relay statistics...
Page 846: ...i Contents Basic IP forwarding commands 1 display fib 1 ip forwarding table save 2...
Page 1770: ...i Contents Time range commands 1 display time range 1 time range 1...
Page 2026: ...34 Related commands display mac authentication...
Page 2028: ...ii...
Page 2143: ...i Contents User profile commands 1 display user profile 1 user profile 2...
Page 2308: ...61 ipsec transform set...
Page 2531: ...i Contents SAVI commands 1 ipv6 savi down delay 1 ipv6 savi log enable 1 ipv6 savi strict 2...
Page 2534: ...3 Sysname ipv6 savi strict Related commands ipv6 verify source...
Page 2791: ...14 Sysname track 1 Related commands delay display track...
Page 2939: ...9 sntp authentication keyid sntp reliable authentication keyid...
Page 2967: ...27 Related commands apply poe profile poe enable poe max power interface view poe priority...