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How to display the encryption level of a TN3270 connection

Question & Answer


Question

Is there a command for displaying the encryption level of a TN3270 connection?

Answer

The CONNECTION Summary display command provides this information. The output from a D TCPIP,tnproc,T,CONN command displays an EZZ6064I message that shows the encryption type of each TN3270 connection. The encryption type is shown in the ENCR TYPE column.



    D TCPIP,TELNET,CONN
(C) EZZ6064I TELNET CONN DISPLAY
(L)          ENCR                                           TSP
(L) CONN     TYPE IPADDR..PORT            LUNAME   APPLID   PTR LOGMODE
   -------- ---- ---------------------- -------- --------  --- --------
   0000001C 4S   9.27.11.197..4155      TCPM1002 APPL2     TAE SNX32702
   0000001A 4S   9.27.11.197..4154      TCPM1001 APPL2     TAE SNX32702
   ----- PORT:      23    ACTIVE           PROF: CURR CONNS:      2

    ------------------------------------------------------------
        4 OF 4 RECORDS DISPLAYED


   
In the above example, Telnet connections 0000001C and 0000001A both have an encryption type of 4S, which signifies the cipher specification SSL_RC4_SHA.

All the encryption types displayed by this command and the cipher specifications that they signify are found in the description of the ENCRYPTION statement in the IP Configuration Reference.

[{"Product":{"code":"SSSN3L","label":"z\/OS Communications Server"},"Business Unit":{"code":"BU009","label":"Systems - Server"},"Component":"--","Platform":[{"code":"PF035","label":"z\/OS"}],"Version":"1.12;1.13;2.1;2.2","Edition":""}]

Document Information

Modified date:
15 June 2018

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swg21684860