H.248

Для переноса сигнальных сообщений H.248 могут использоваться протоколы UDP, TCP, SCTP или транспортная технология ATM.

Стандартный порт для переноса по UDP и TCP - 2944.

Пример дешифрации

ITU-T H.248 White book,2002
     55 00000011 Spare......................... Error
     56 00000000 Spare......................... 0
     57 00000000 Spare......................... 0
     58 01000110 Spare......................... Error
     59 ***b8*** TAG: class=0 code=16 type=1
     60 ***b8*** Length........................ 64 Dec
 
     -- MEGACO message
     61 ***b8*** TAG: class=2 code=1 type=1
     62 ***b8*** Length........................ 62 Dec
 
        -- Message
        63 ***b8*** TAG: class=2 code=0 type=0
        64 ***b8*** Length........................ 1 Dec
 
        -- Version
        65 ***b8*** Integer....................... 2 Dec
 
        66 ***b8*** TAG: class=2 code=1 type=1
        67 ***b8*** Length........................ 12 Dec
 
           -- Name/address of message originator
           68 ***b8*** TAG: class=2 code=0 type=1
           69 ***b8*** Length........................ 10 Dec
 
              -- IPv4 address
              70 ***b8*** TAG: class=2 code=0 type=0
              71 ***b8*** Length........................ 4 Dec
 
              -- (Align bits)
 
              72 ***B4*** Address....................... 10.77.50.76
              76 ***b8*** TAG: class=2 code=1 type=0
              77 ***b8*** Length........................ 2 Dec
              78 ***b16** Port.......................... 1026: 
 
        80 ***b8*** TAG: class=2 code=2 type=1
        81 ***b8*** Length........................ 43 Dec
 
           -- Message body
           82 ***b8*** TAG: class=2 code=1 type=1
           83 ***b8*** Length........................ 41 Dec
 
              -- Transactions
              84 ***b8*** TAG: class=2 code=0 type=1
              85 ***b8*** Length........................ 39 Dec
 
                 -- Transaction request
                 86 ***b8*** TAG: class=2 code=0 type=0
                 87 ***b8*** Length........................ 2 Dec
 
                 -- Transaction id
                 88 ***b16** Integer....................... 30402 Dec
 
                 90 ***b8*** TAG: class=2 code=1 type=1
                 91 ***b8*** Length........................ 33 Dec
 
                    -- Actions
                    92 ***b8*** TAG: class=0 code=16 type=1
                    93 ***b8*** Length........................ 31 Dec
 
                       -- Action request
                       94 ***b8*** TAG: class=2 code=0 type=0
                       95 ***b8*** Length........................ 2 Dec
 
                       -- Context id
                       96 ***b16** Integer....................... 246 Dec
 
                       98 ***b8*** TAG: class=2 code=3 type=1
                       99 ***b8*** Length........................ 25 Dec
 
                          -- Command requests
                         100 ***b8*** TAG: class=0 code=16 type=1
                         101 ***b8*** Length........................ 23 Dec
 
                             -- Command request
                            102 ***b8*** TAG: class=2 code=0 type=1
                            103 ***b8*** Length........................ 21 Dec
 
                                -- Command
                               104 ***b8*** TAG: class=2 code=3 type=1
                               105 ***b8*** Length........................ 19 Dec
 
                                   -- Subtract request
                                  106 ***b8*** TAG: class=2 code=0 type=1
                                  107 ***b8*** Length........................ 17 Dec
 
                                      -- Termination id list
                                     108 ***b8*** TAG: class=0 code=16 type=1
                                     109 ***b8*** Length........................ 15 Dec
 
                                         -- Termination id
                                        110 ***b8*** TAG: class=2 code=0 type=1
                                        111 ***b8*** Length........................ 3 Dec
 
                                            -- Wildcard
                                           112 ***b8*** TAG: class=0 code=4 type=0
                                           113 ***b8*** Length........................ 1 Dec
 
                                            -- Wildcard field
                                           114 11111111 Octetstring................... FF
 
                                        115 ***b8*** TAG: class=2 code=1 type=0
                                        116 ***b8*** Length........................ 8 Dec
 
                                         -- Id
                                        117 ***B8*** Octetstring................... FF
                                                                                    FF
                                                                                    FF 
                                                                                    FF 
                                                                                    FF 
                                                                                    FF 
                                                                                    FF 
                                                                                    FF 
                                                                                    FF

Ссылки

• ITU-T Recommendations