WEP group key 2.
You can enter the key as an ASCII character string or as a hexadecimal number (with a leading "0x").
- SNMP ID:
 - 2.23.20.4.3
 - Console path:
 - Setup > Interfaces > WLAN > Group-Encryption-Keys
 - Possible values:
 - WEP152 (128 bit)
 - 16 ASCII or 32 hex characters
 - WEP128 (104 bit)
 - 13 ASCII or 26 hex characters
 - WEP64 (40 bit)
 - 5 ASCII or 10 hex characters