Defines the authority bits in the error label associated with
any outbount ICMP error packets. This is a bit map. 'NONE'
means that a 3-byte option label (no authority byte) is used.
This field only has meaning if error labelling is enabled
(wfIpInterfaceError LabelEnabled = IP_NWIF_LABEL_ENABLED ).
The octets indicate auth values. Authorities have been defined
for the first octet. This is represented by the following 'bit
mask' values:
IP_NWIF_AUTH_NONE 0 (0x00)
IP_NWIF_AUTH_GENSER 128 (0x80)
IP_NWIF_AUTH_SIOPESI 64 (0x40)
IP_NWIF_AUTH_SCI 32 (0x20)
IP_NWIF_AUTH_NSA 16 (0x10)
IP_NWIF_AUTH_DOE 8 (0x08)
IP_NWIF_AUTH_ALL 248 (0xF8)
If no value is specified and error labelling is enabled,
the software defaults to IP_NWIF_AUTH_NONE