this.securityMode = securityMode;

        if ( !config.isDfsDisabled() ) {
            this.capabilities |= Smb2Constants.SMB2_GLOBAL_CAP_DFS;
        }

        if ( config.isEncryptionEnabled() && config.getMaximumVersion() != null && config.getMaximumVersion().atLeast(DialectVersion.SMB300) ) {
            this.capabilities |= Smb2Constants.SMB2_GLOBAL_CAP_ENCRYPTION;
        }

        return this.delegate.isIpcSigningEnforced();
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.Configuration#isEncryptionEnabled()
     */
    @Override
    public boolean isEncryptionEnabled () {
        return this.delegate.isEncryptionEnabled();
    }


    /**
     * {@inheritDoc}
     * 
     * @see jcifs.Configuration#getLmHostsFileName()
     */
    @Override

        this.commonCapabilities = r.getCapabilities() & this.capabilities;

        if ( ( this.commonCapabilities & Smb2Constants.SMB2_GLOBAL_CAP_ENCRYPTION ) != 0 ) {
            this.supportsEncryption = tc.getConfig().isEncryptionEnabled();
        }

        if ( this.selectedDialect.atLeast(DialectVersion.SMB311) ) {
            if ( !checkNegotiateContexts(r, this.commonCapabilities) ) {
                return false;
            }

        return this.signingEnforced;
    }


    @Override
    public boolean isIpcSigningEnforced () {
        return this.ipcSigningEnforced;
    }


    @Override
    public boolean isEncryptionEnabled () {
        return this.encryptionEnabled;
    }


    @Override
    public boolean isForceExtendedSecurity () {
        return this.forceExtendedSecurity;
    }


    @Override

     * negotiation, SMB encryption is not implemented yet.
     * 
     * @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
     */