2.2.1 NAT-T Payload Types
Each ISAKMP message consists of a header and a variable number of payloads, each identified by a 1-octet payload type value in its Next Payload field, as specified in [RFC2408] section 3.1. NAT-T adds two new payload types: NAT Discovery (NAT-D) and NAT Original Address (NAT-OA). The payload type values for these payload types are specified in [RFC3947]. For more information about an alternative set of payload type values, see [DRAFT-NATT].
The NAT-D payload type values are as follows.
|
NAT Discovery (NAT-D) payload type value |
Revision |
|---|---|
|
0x82 |
[DRAFT-NATT] |
|
0x14 |
[RFC3947] |
The supported NAT-OA payload types are as follows.
|
Supported NAT Original Address (NAT-OA) payload type |
Revision |
|---|---|
|
0x83 |
[DRAFT-NATT] |
|
0x15 |
[RFC3947] |