Value,Description,Reference 0,Reserved,[RFC4851] 1,Reserved,[RFC4851] 2,Reserved,[RFC4851] 3,Result TLV,[RFC4851] 4,NAK TLV,[RFC4851] 5,Error TLV,[RFC4851] 6,Unassigned, 7,Vendor-Specific TLV,[RFC4851] 8,Unassigned, 9,EAP-Payload TLV,[RFC4851] 10,Intermediate-Result TLV,[RFC4851] 11,PAC TLV,[RFC5422] 12,Crypto-Binding TLV,[RFC4851] 13-17,Unassigned, 18,Server-Trusted-Root TLV,[RFC5422] 19,Request-Action TLV,[RFC4851] 20,PKCS#7 TLV,[RFC5422]