DYNDNS setup

Discussion in 'Tomato Firmware' started by danandrews80, Dec 20, 2012.

  1. danandrews80

    danandrews80 Serious Server Member

    Hi I am trying to set up dyndns with shibbys 1.28.0000 MIPSR2-104 K26 Max firmware.

    I am using an ADSL modem and connecting this to my Router via the WAN port.

    Could someone please tell me how to set it up.

    I have tried setting it up, but I am having no luck.

    I have tried to set it up with the option automatically checking external IP address and with wan port address.

    When I set it up to the external IP address, I cannot access it internally or externally.

    When I set it up using the WAN address I can access it entirely, but still can access externally.

    I have forwarded the ports that I want to be able to access, however I cannot seem to get it to work.

    Any help would be appreciated.

    Sent from my GT-I9300 using Tapatalk 2
  2. PBandJ

    PBandJ Addicted to LI Member

    I've been using dyndns for ages. Never had issues. I'm using dns-o-matic to handle the updating of my Dynamic DNS (as well as some other service).
  3. digiblur

    digiblur Networkin' Nut Member

    Using dyndns with shibby as well and confirm it does work. Is it updating your ip at all?

    Sent from a little old Note 2
  4. danandrews80

    danandrews80 Serious Server Member

    It's updating my ip correctly, maybe it's my port forwarding. It is all set up, is there anyway I can check it's working. I've also now tried it with toastman and doesn't work with that.

    Sent from my GT-I9300 using Tapatalk 2
  5. Monk E. Boy

    Monk E. Boy Network Guru Member

    Which router make/model are you using?

    Is the IP address assigned to your WAN port start with 192.168. or 10. or 172.16. or 169.254. ? If yes, then you need to use the external address checker option. If not, then you don't.
  6. danandrews80

    danandrews80 Serious Server Member

    It starts with 192.168, so I have used the external ip check, this then updates to.the.proper.ip address, but I still can't get access using the dyndns address. I think it must be my port forwarding but.that is definitely setup.correctly.

    Sent from my GT-I9300 using Tapatalk 2
  7. ipse

    ipse LI Guru Member

    I can confirm dyndns working with Shibby 104 and DSL.

    IP address = Use WAN IP
    Auto refresh every days =28 (0 = disable)
    Dynamic DNS 1
    URL http://www.dyndns.com/
    Backup MX
    Save state when IP changes (nvram commit) = Yes
    Force next update

    Last IP Address Friday, December 21, 2012 15:01:36:

    Last Result Friday, December 21, 2012 15:01:36:
    Update successful.
  8. koitsu

    koitsu Network Guru Member


    Maybe your ISP is filtering the ports you have forwarded (i.e. your router never gets the packet).

    If your ADSL "modem" acts as a router, then this would mean you would be doing double NAT (i.e. ADSL modem gets the WAN IP, hands LAN IP of 192.168.x.x to your router via DHCP, your router gets a "WAN IP" (per se) of 192.168.x.x, and your LAN clients get an IP of 192.168.x.x via DHCP (from your router doing DHCP)). If that's the case, you want an ADSL "modem" that can become a transparent bridge -- in that mode the ADSL modem does the PPPoE negotiation, but transparently forwards all other IP traffic to your router, i.e. your router gets a real WAN IP and so on, therefore no double NAT.

    P.S. -- Do not access the router (Tomato/Shibby) WAN IP from your LAN. Just don't do it. It's not a valid way to test anything, and it can also cause high load on the router due to how loopback masquerading works (badly). I can point you to proof of this if you want it (there are posts about it on the forum). Please, when talking to your router on the LAN, use its LAN address ( When talking to your router across the Internet, use its WAN address. Do not intertwine the two. Ever.
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice