AC and AP link was in L3 mode.
Customer has their own Cisco Core 3750 switch running DHCP server. DHCP option 43 was configured to supply AC IP to the APs.
AP was not receiving AC IP through option 43. Hence none of the AP was registering.
Problem:
Option 43 Configurations on Cisco switch
DHCP Option 43 was configured on cisco switch DHCP Server in following method:
Cisco switch Configurations:
IP dhcp pool AP_MGMT
Network X.XX.X
default-router X.X.X.X
option 43 ip X.X.X.X
Problem Handling and Solution:
There are two options of supplying AC IP to AP.
Method 1
AC Virtual IP – 192.168.101.10
ASCII CODE - 030E3139322E3136382E3130312E3130
Method 2
AC Virtual IP – 192.168.101.10
ASCII CODE – ..192.168.101.10
AC Virtual IP – 192.168.101.10
ASCII CODE for Option 43 – 030E192.168.101.10
Cisco switch Configurations:
IP dhcp pool AP_MGMT
Network X.XX.X
default-router X.X.X.X
option 43 ip 030E3139322E3136382E3130312E3130 ( Follow this rule )
After configuring the DHCP Server with this value APs received AC information and got registered.
Note:
ASCII CODE Detail:
First two characters – 03 – Vendor code for Huawei
Next two character – 0E – Total number of characters in IP Address (0E=14; which is total number of characters including dots in “192.168.101.10”)
Remaining Characters – AC IP Address
