3com S7906E Manuel De Montage

 

1-6 

z 

Executing the ipv6 dhcp relay server-address command repeatedly can specify multiple 

DHCPv6 servers, and up to eight DHCP servers can be specified for an interface. After receiving 

requests from DHCPv6 clients, the DHCPv6 relay agent forwards the requests to all the specified 

DHCPv6 servers. 

z 

If the DHCPv6 server address is a link-local address or link-scoped multicast address on the local 

link, you need to specify an outgoing interface using the interface keyword in the ipv6 dhcp relay 

server-address command; otherwise, DHCPv6 packets may fail to be forwarded to the DHCPv6 

server. 

z 

Removing all the specified DHCPv6 server addresses from an interface disables DHCPv6 relay 

agent on the interface. 

z 

An interface cannot serve as a stateless DHCPv6 client and DHCPv6 relay agent at the same time. 

 

Display DHCPv6 client 
information 

display ipv6 dhcp client [ interface 
interface-type interface-number ] 

Available in any view 

Display DHCPv6 client 
statistics 

display ipv6 dhcp client statistics 
[ interface interface-type 
interface-number ] 

Available in any view 

Display the DUID of the local 
device 

display ipv6 dhcp duid 

Available in any view 

Display DHCPv6 server 
addresses specified on the 
DHCPv6 relay agent 

display ipv6 dhcp relay 
server-address { all | interface 
interface-type interface-number } 

Available in any view 

Display packet statistics on the 
DHCPv6 relay agent 

Available in any view 

Clear DHCPv6 client statistics 

reset ipv6 dhcp client statistics 
[ interface interface-type 
interface-number ] 

Available in user view 

Clear packets statistics on the 
DHCPv6 relay agent 

Available in user view 

 

As shown in 

, through stateless DHCPv6, Switch A obtains the DNS server address, domain 

name, and other information from the server. 

Switch B acts as the gateway to send RA messages periodically.