return this.delegate.getMachineId();
    }


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


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

            this.auth.isGuest() ? null : this.auth.getUserDomain(),
            this.auth.isGuest() ? this.transportContext.getConfig().getGuestUsername() : this.auth.getUsername(),
            this.workstation,
            this.ntlmsspFlags,
            this.auth.isGuest() || !this.auth.isAnonymous());
    }

        CIFSContext ctx = getContext();
        ctx = withConfig(ctx, new DelegatingConfiguration(ctx.getConfig()) {

            @Override
            public String getGuestUsername () {
                return "jcifs-guest";
            }
        }).withGuestCrendentials();

        try ( SmbResource f = new SmbFile(getTestShareGuestURL(), ctx) ) {
            checkConnection(f);

    }


    @Override
    public boolean isSendNTLMTargetName () {
        return this.sendNTLMTargetName;
    }


    @Override
    public String getGuestUsername () {
        return this.guestUsername;
    }


    @Override
    public String getGuestPassword () {
        return this.guestPassword;
    }


    @Override

    /**
     * Property <tt>jcifs.smb.client.guestUsername</tt>, defaults to GUEST
     * 
     * @return username used when guest authentication is requested
     */
    String getGuestUsername ();


    /**
     * Property <tt>jcifs.smb.client.allowGuestFallback</tt>, defaults to false
     * 
     * @return whether to permit guest logins when user authentication is requested
     */