SNR S2940-8G-v2, Configuration Manual

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SNR S2940-8G-v2 Switch Configuration Guide
DHCPv6 Configuration
Switch2(Config-if-Vlan10)#exit
Switch2(config)#interface vlan 100
Switch2(Config-if-Vlan100)#ipv6 address 2001:da8:100:1::1/64
Switch2(Config-if-Vlan100)#no ipv6 nd suppress-ra
Switch2(Config-if-Vlan100)#ipv6 nd managed-config-flag
Switch2(Config-if-Vlan100)#ipv6 nd other-config-flag
Switch2(Config-if-Vlan100)#exit
Switch1 configuration:
Switch1(config)#service dhcpv6
Switch1(config)#interface vlan 1
Switch1(Config-if-Vlan1)#ipv6 address 2001:da8:100:1::2/64
Switch1(Config-if-Vlan1)#ipv6 dhcp relay destination 2001:da8:10:1::1
35.7 DHCPv6 Troubleshooting
If the DHCPv6 clients cannot obtain IPv6 addresses and other network parameters, the following
procedures can be followed when DHCPv6 client hardware and cables have been verified ok:
• Verify the DHCPv6 server is running, start the related DHCP v6 server function if not running;
• If the DHCPv6 clients and servers are not in the same physical network, verify the router
responsible for DHCPv6 packet forwarding has DHCPv6 relay function. If DHCPv6 relay is
not available for the intermediate router, it is recommended to replace the router or upgrade
its software to one that has a DHCPv6 relay function;
• Sometimes hosts are connected to the DHCPv6 enabled switches, but can not get IPv6
addresses. In this situation, it should be checked first whether the ports which the hosts
are connected to, are connected with the port which the DHCPv6 server is connected to. If
connected directly, it should be checked then whether the IPv6 address pool of the VLAN
which the port belongs to, is in the same subnet with the address pool configure in the
DHCPv6 server; If not connected directly, and any layer three DHCPv6 relay is configured
between the hosts and the DHCPv6 server, it should be checked first whether an valid IPv6
address has been configured for the switch interface which the hosts are connected to. If
not configured, configure an valid IPv6 address. If configured, it should be checked whether
the configured IPv6 address is in the same subnet with the DHCPv6 server. If not, please
add it to the address pool.
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