Technical requirements and test methods for the IPv6 protocol capability of WLAN devices
I. Technical requirements for the IPv6 protocol capability of WLAN devices
(I) WLAN devices with public IP address assignment function must support IPv6 protocol and have the IPv6 function enabled by default.
(II) WLAN devices with public IP address assignment function, if operating in Layer 2 bridging mode, must support transparent transmission of IPv6 packets.
(III) WLAN devices with public IP address assignment function, if operating in Layer 3 routing mode, must support IPv6 address assignment to connected users and forwarding of users’ IPv6 packets.
II. Test methods for the IPv6 protocol capability of WLAN devices
WLAN devices with public IP address assignment function must be subjected to relevant tests. The test is expected to be carried out in the following scenarios: Scenario 1: the network device operates in the Layer 3 routing mode and the WLAN device operates in the Layer 2 bridging mode; Scenario 2: the network device operates in the Layer 2 bridging mode and the WLAN device operates in the Layer 3 routing mode; Scenario 3: the network device operates in the Layer 3 routing mode, and the WLAN device operates in the Layer 3 routing mode.
The test under Scenarios 1 and 2 is mandatory, and that under Scenario 3 is optional.
(I) Test Scenario 1
1. Test environment
Test Topology 1: Layer 3 routing mode for the network device and Layer 2 bridging mode for the WLAN device
In Test Topology 1, the network device plays the functions of connecting the Internet upwards and connecting the WLAN device downwards. The network device may be a home/enterprise gateway or a switch and router device with Layer 3 functions. The network device shall support PPPoE dial-up access to the network, or obtaining IP address from the network via DHCPv4/v6, or static IP address configuration, and support downstream assignment of IP address/network prefix. The WLAN device (equipment under test, EUT) connects the network device upwards and user terminal equipment downwards, operates in Layer 2 bridging mode, and transmit IPv6 packets transparently. For the Internet part, an analog environment may be used to simulate the functions of assigning IP addresses to network devices and providing Internet services. Alternatively, it may be built according to the actual networking situation.
2. Test procedure
(1) Step 1: Establish a network with the network device according to the Test Topology 1, and configure the network device to operate in Layer 3 routing mode. If the network device is a home/enterprise gateway, configure the user account and password on the WAN interface of the network device, and dial in to access the network. If the network device is of other types, it may be configured to obtain the IP address from the network via DHCPv4/v6, or to statically configure the IP address for the WAN interface.
(2) Step 2: Configure the user-oriented IP address assignment method on the LAN interface of the network device. In the IPv6 environment, choose any one of SLAAC, SLAAC+DNS extension and DHCPv6.
(3) Step 3: Check the related information of the network device to confirm that an IPv6 address can be assigned to the WAN interface of the network device, and the IPv6 network prefix for assigning IPv6 address to LAN-side users is configured.
(4) Step 4: Connect the WLAN device (EUT) to the network device according to Test Topology 1, and configure it to operate in Layer 2 bridging mode.
(5) Step 5: Connect the WLAN device with the user terminal equipment, and enable the IPv6 protocol stack on the user terminal equipment. If the user-oriented IPv6 address assignment method configured on the network device is SLAAC, configure the DNS on the user terminal equipment to "2400:3200::1" or other available IPv6DNS. If other user-oriented IPv6 address assignment methods are configured on the network device, DNS information may not be configured on the user terminal equipment.
(6) Step 6: Check whether the user terminal equipment obtains IPv4 and IPv6 addresses.
(7) Step 7: Visit websites supporting IPv4 and IPv6 respectively through the user terminal equipment to check the access situation.
3. Expected results
(1) In Step 6, the user terminal equipment can obtain an IPv4 address and an IPv6 address, and the network prefixes of the IPv4 and IPv6 addresses are consistent with the configuration information of the network device.
(2) In Step 7, the user terminal equipment successfully accesses the website supporting IPv4; the user terminal equipment successfully accesses the website supporting IPv6.
4. Judgment principle
If the results obtained are in line with the expected ones, the WLAN device is judged as accepted by the IPv6 protocol capability test under Test Scenario 1; otherwise, it is judged as rejected.
(II) Test Scenario 2
1. Test environment
Test Topology 2: Layer 2 bridging mode for the network device and Layer 3 routing mode for the WLAN device
In Test Topology 2, the network device plays the functions of connecting the Internet upwards and connecting the WLAN device downwards. The network device may be a home/enterprise gateway or a switch device with Layer 2 functions and it operates in Layer 2 bridging mode. The WLAN device (EUT) connects the network device upwards and user terminal equipment downwards, and operates in Layer 3 routing mode. The WLAN device shall support PPPoE dial-up access to the network, or obtaining IP address from the network via DHCPv4/v6, or static IP address configuration, support IP address assignment to downstream users, and have the IPv6 protocol stack enabled by default. For the Internet part, an analog environment may be used to simulate the functions of assigning IP addresses to network devices and providing Internet services. Alternatively, it may be built according to the actual networking situation.
2. Test procedure
(1) Step 1: Establish a network with the network device according to the Test Topology 2, and configure the network device to operate in Layer 2 bridging mode.
