WNV_REDIRECT_PARAM structure (wnvapi.h)
Specifies the parameters of the event (receiving an incoming Internet Control Message Protocol redirect packet) that causes the Windows Network Virtualization (WNV) driver to generate a WnvRedirectType notification. If there is a pending call to the WnvRequestNotification function of this type, the WNV driver fills the buffer that is passed in the NotificationParam argument's WNV_NOTIFICATION_PARAM structure with one or more instances of this structure and completes the WnvRequestNotification function call.
Syntax
typedef struct _WNV_REDIRECT_PARAM {
ADDRESS_FAMILY CAFamily;
ADDRESS_FAMILY PAFamily;
ADDRESS_FAMILY NewPAFamily;
ULONG VirtualSubnetId;
WNV_IP_ADDRESS CA;
WNV_IP_ADDRESS PA;
WNV_IP_ADDRESS NewPA;
} WNV_REDIRECT_PARAM, *PWNV_REDIRECT_PARAM;
Members
CAFamily
Type: ADDRESS_FAMILY
The address family (AF_INET or AF_INET6) for the customer address.
PAFamily
Type: ADDRESS_FAMILY
The address family (AF_INET or AF_INET6) for the original provider address.
NewPAFamily
Type: ADDRESS_FAMILY
The address family (AF_INET or AF_INET6) for the new provider address.
VirtualSubnetId
Type: ULONG
The identifier of a customer virtual subnet. This value ranges from 4096 (0x00001000) to 16777214 (0x00FFFFFE).
CA
Type: WNV_IP_ADDRESS
The IP address object for the customer address, which is the IP address configured on the virtual machine for network virtualization.
PA
Type: WNV_IP_ADDRESS
The IP address object for the provider address, which is the matching IP address used on the physical network for the customer address.
NewPA
Type: WNV_IP_ADDRESS
The updated provider address when a virtual machine is migrated from one host to another.
Remarks
Hyper-V Network Virtualization uses an Internet Control Message Protocol (ICMP) redirect message to indicate a change in the virtual machine's provider address in the case of a live migration of a virtual machine.
For a detailed description of network virtualization concepts and terminology, refer to Hyper-V Network Virtualization Overview.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | None supported |
| Minimum supported server | Windows Server 2012 [desktop apps only] |
| Header | wnvapi.h |