this.useExtendedSecurity = Config.getBoolean(p, "jcifs.smb.client.useExtendedSecurity", true);
        this.forceExtendedSecurity = Config.getBoolean(p, "jcifs.smb.client.forceExtendedSecurity", false);

        this.smb2OnlyNegotiation = Config.getBoolean(p, "jcifs.smb.client.useSMB2Negotiation", false);

    protected boolean ipcSigningEnforced = true;
    protected boolean encryptionEnabled = false;
    protected boolean useNtStatus = true;
    protected boolean useExtendedSecurity = true;
    protected boolean forceExtendedSecurity = false;
    protected boolean smb2OnlyNegotiation = false;
    protected boolean port139FailoverEnabled = false;
    protected boolean useNTSmbs = true;
    protected boolean useLargeReadWrite = true;

                cfg.put("jcifs.smb.lmCompatibility", "2");
                cfg.put("jcifs.smb.client.useExtendedSecurity", "false");
                cfg.put("jcifs.smb.client.forceExtendedSecurity", "false");
                return cfg;
            }
        });

        MUTATIONS.put("forceSpnegoIntegrity", new TestMutation() {

            @Override

     * 
     * @return whether SMB encryption is enabled
     * @since 2.1
     */
    boolean isEncryptionEnabled ();


    /**
     * 
     * Property <tt>jcifs.smb.client.forceExtendedSecurity</tt> (boolean, default false)
     * 
     * @return whether to force extended security usage
     */
    boolean isForceExtendedSecurity ();


    /**
     * 
     *