Access through BT Voyager 220

Discussion in 'Broadband' started by ianh, Nov 29, 2007.

  1. ianh

    ianh Guest

    Could anybody gude me through how to set up my voyager to allow access
    to my home network from the outside.
     
    ianh, Nov 29, 2007
    #1
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  2. ianh

    Nigel Cliffe Guest

    1) Assumption that you know the security implications of your request.
    2) Need to know your ISP supplied IP address. Ideally its static. If not,
    you need some way of knowing what it may be (eg. dynamic DNS service).
    3) Look up the 220v manual for DMZ and Port Forwarding. You are attempting
    to forward requests from outside to a specific machine on your home lan.
     
    Nigel Cliffe, Nov 29, 2007
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  3. ianh

    Mortimer Guest

    Assuming that your external ISP-supplied IP address is static, you will need
    to set up an inbound port forward rule (eg for port 80 web traffic) to the
    IP address of a PC on your network. This PC will also need a static IP
    address, either by setting it statically at the PC instead of using DHCP or
    else by using address reservation on the router's DHCP server so the PC is
    always given the same address by DHCP.
     
    Mortimer, Nov 29, 2007
    #3
  4. ianh

    ianh Guest


    Thanks, I have a dynamic IP from BT, but i do know what it is and can
    update as it changes ( does it change? and when)

    yes i have a fixed IP on my network that i want to access.

    Is the manual on disk? cant see it in my discarded packaging ( i know
    RTFMS)

    thanks.
     
    ianh, Nov 29, 2007
    #4
  5. It is usually pretty simple from the web based admin screens:

    You need to select a port to 'pass through' say (bad example0 you wan to
    telnet into a box on say -192.168.0.20..

    you need to set pass through for port 23 to machine 192.168.0.10: , on
    port 23. for example.

    Yu MAY also want to mess with firewall settings so that port can ONLY be
    accessed from a range of IP addreses. Not sure what the Voyager
    capabilities are.

    This sort of stuff is usually online if you google 'BT voyager pass
    through port redirect' or something

    Try here

    http://www.thinkbroadband.com/hardware/reviews/2005/q1/voyager2100.html

    Its a pece of cake. You don't even need to know what the ports
    ARE...just selecet the 'service' you want and the machine address its to
    be forwarded to.

    That page suggests that there is no inbound firewall apart from the NAT
    itself - thats fairly common on most consumer routers so once you set up
    a pass through its globally accessible.

    Strangely enough my ageing D-link seems to do better. AFAICT it
    implements a firewall on packets going in *and* out.
     
    The Natural Philosopher, Nov 29, 2007
    #5
  6. ianh

    ianh Guest

    Thanks for that will have a look later

    one question, what port and why?

    i am tying to just get access to one machine so that i can help my
    partner when she loses everything and blames the PC...to be able to
    search files and hopefully run one application...

    the application is a POS database --

    ian h
     
    ianh, Nov 29, 2007
    #6
  7. Oh You PROBABLY want one of those remote console programs so you can
    operate her machine from afar. Distinctly dodgy that.

    The way these work is usually that you ask her to run something on her
    machine, then you connect with a name and password,she agrees to the
    connection, and you can then run the machine totally remotely.

    I forget what its called, or what port its on. But its very common for
    managed sites of PC's.
     
    The Natural Philosopher, Nov 29, 2007
    #7
  8. ianh

    Nigel Cliffe Guest

    The question suggests you don't understand the security problems.


    Practical suggestion time which avoids the security holes you are digging:

    Option 1)
    Get some backup software which can FTP the backup to a remote server.
    (Acronis True Image will do it, I use that for my home machines, and I guess
    many others will do the same).
    Put the backups onto a server (eg. your webspace which came free from the
    ISP, or buy some cheap webspace somewhere).
    If/when stuff is lost, use the backup software to recover the files to
    whichever computer you wish to restore.


    Option 2)
    Assuming its Windows, when problems occur, setup remote desktop help to
    allow external connection (only turn it on when problem occurs). This
    should not need all the port forwarding stuff.



    The link given by "the natural philospher" was to a Voyager 2100 article.
    Its close enough to the 220v functionality to be useable, but note that it
    is a different device and there may be small differences in implementation.


    - Nigel (ex of BT, and designer of some of the Voyager2000 features)
     
    Nigel Cliffe, Nov 29, 2007
    #8
  9. ianh

    Graham J Guest

    I'm not sure it's possible on a Voyager router.

    However, I've been using some Edimax routers recently, and these are very
    good value. See:
    http://www.scan.co.uk/Products/ProductInfo.asp?WebProductID=584405

    These provide:

    1) DDNS client - so you can always find out your ISP-dynamic address from
    elsewhere.

    2) Access control option - so that you can nominate those IP addresses from
    which you want to allow remote access (good for security!)

    3) Port forwarding - so you can specify which application you allow to
    communicate with the "home" computer.

    4) DHCP pool summary - so you can identify the internal computer for which
    you wish to set up port forwarding

    .... as well as all the basic features you would expect.

    Many more expensive routers miss out on some of these features.

    It would be nice for it to have a built-in ping facility so it could test
    connectivity to a local PC, for example.

    VPN support would be nice, but a little too much to ask for £19.29, I think.
     
    Graham J, Nov 29, 2007
    #9
  10. ianh

    ianh Guest

    or should i just change the voyager for a router capable of VPN?

    i was looking at the Linksys 8port and VPN slightly pro one
     
    ianh, Nov 29, 2007
    #10
  11. .... or compared to what?
    Please retain context when posting in technical newsgroups, its
    unrealistic to expect all the readers to remember every conversation.

    Since I have no clue what you're trying to do, its impossible to answer.
    However unless you're trying to run a VPN _SERVER_ on your network, you
    should be able to _use_ a vpn client through pretty much any router.
     
    Mark McIntyre, Nov 30, 2007
    #11
  12. ianh

    Nigel Cliffe Guest


    I believe it is possible(*).
    The Voyager 220v is supplied to business and consumer customers by BT, and
    the configurations for business customers include port forwarding. See the
    website for supporting BT business users for the general principles, though
    one might need either the manuals (probably on CD) or a call to the helpdesk
    to get all the details.



    [ snipped suggestion that OP should buy another bit of kit ]




    - Nigel (* OK, this is from memory and I may have it wrong, but I did work
    on the design of these boxes ).
     
    Nigel Cliffe, Nov 30, 2007
    #12
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