IPV6_ADDRESS_POLICY Structure
C
typedef struct {
IPV6_ADDR address;
unsigned char prefixLength;
unsigned char precedence;
unsigned char label;
} IPV6_ADDRESS_POLICY;
Desscription
Type: IPV6_ADDRESS_POLICY.
The policy table is the longest matching prefix lookup table and is used to select the destination IPv6 Address.
If Precedence(A) > Precedence(B), address A has higher precedence than address B. The label value Label(A) allows for policies that prefer a particular source address prefix for use with a destination address prefix. Default Policy table - Prefix Precedence Label ::1/128 50 0 ::/0 40 1 2002::/16 30 2 ::/96 20 3 ::ffff:0.0.0.0/96 10 4
Members
| Parameters | Description |
|---|---|
| address | IPv6 address. |
| prefixLength | IPv6 prefix length. |
| precedence | IPv6 address precedence. |
| label | IPv6 label type. |
Remarks
None.
Example
const IPV6_ADDRESS_POLICY gPolicyTable[] = { {{{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01}}, 128, 50, 0}, // Loopback address {{{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}}, 0, 40, 1}, // Unspecified address {{{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00}}, 96, 35, 4}, // IPv4-mapped address {{{0x20, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}}, 16, 30, 2}, // 2002::/15 - 6to4 {{{0x20, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}}, 32, 5, 5}, // 2001::/32 - Teredo tunneling {{{0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}}, 7, 3, 13}, // ULA };