An AP's MAC address conflicts with that of another AP

3

When an AP's MAC address conflicts with that of another AP, check whether the set system-mac command is supported in the diagnostic view of the AP. If so, the MAC address can be changed. Run the set system-mac command to change to the AP's MAC address. If the set system-mac command is not supported, change the MAC address of another AP.

Other related questions:
Is the MAC address of an SSID broadcast by a Huawei AP the same as the AP's MAC address
The MAC address of an SSID broadcast by a Huawei AP is automatically generated based on parameters such as the carrier ID and AP ID, which ensures that the uniqueness of the MAC address. Therefore, the MAC address is different from that of the AP. MAC address calculation rule: The basic service set identifier (BSSID) is used to uniquely identify an AP and the BSSID format is the same as that of the MAC address, that is, XXXX-XXXX-XXXX. If an AP has only one SSID, the BSSID is the AP's MAC address. A Huawei AP supports multiple VAPs, each of which has a unique BSSID. If the BSSID of each VAP uses the AP's MAC address, duplicate BSSIDs exist. An algorithm is adopted to ensure that the BSSID of each VAP is unique and associated with the AP's MAC address. The following takes a dual-band AP's MAC address dcd2-fc01-1b40 as an example. Generally, each frequency band supports 16 VAPs. The algorithm of VAPs' BSSIDs is as follows: 1. On radio 0, the BSSID of the first VAP is the AP's MAC address. The BSSIDs of the subsequent VAPs are incremented by 1 on the previous BSSIDs. 2. On radio 1, the BSSID of the first VAP is obtained by adding 1 to the last but one bit of the AP's MAC address. The BSSIDs of the subsequent VAPs are incremented by 1 on the previous BSSIDs. For example, if the AP's MAC address is dcd2-fc01-1b40, the BSSID of the first VAP on radio 1 is dcd2-fc01-1b50. 3. On radio 2, the BSSID of the first VAP is obtained by adding 2 to the last but one bit of the AP's MAC address. The BSSIDs of the subsequent VAPs are incremented by 2 on the previous BSSIDs. For example, if the AP's MAC address is dcd2-fc01-1b40, the BSSID of the first VAP on radio 2 is dcd2-fc01-1b60.

Detect IP address conflicts on S series switch
On an S series switch, except S1700: When the IP addresses of two network devices conflict, the CPU usage on the switch becomes high and route flapping will occur on the switch. User services may be interrupted. To manage IP addresses efficiently and detect IP address conflicts promptly, enable IP address conflict detection. The switch can record logs for IP address conflicts. The configuration procedure is as follows: 1. Run the system-view command to enter the system view. 2. Run the arp ip-conflict-detect enable command to enable IP address conflict detection. By default, IP address conflict detection is disabled. 3. Run the display arp ip-conflict track command in any view to check IP address conflict records.

Is the scanned air interface MAC address of the SSID sent by Huawei APs in multicast node the same as the AP's MAC address
No, the scanned air interface MAC address of the SSID sent by Huawei APs in multicast mode is self-originated according to certain parameters including the carrier ID and device ID, and differs from the AP's MAC address, which ensures global uniqueness of the SSID.

IP address obtained by a client on the AR conflict with the IP address of another client
The troubleshooting roadmap and solution are as follows: -Possible causes: The IP address is configured manually for the host, and is not excluded from the address pool when the DHCP server is deployed. -Troubleshooting: Disable the network adapter of the client or disconnect network cables and perform the ping operation on another host to check whether the host assigned with the IP address exists. After receiving a response, the IP address is configured manually. -Solution: a. Modify the manually configured IP address of the host. b. Exclude the conflicting IP address from the address pool on the DHCP server.

If you have more questions, you can seek help from following ways:
To iKnow To Live Chat
Scroll to top