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mjs4573's avatar
mjs4573
Aspirant
Apr 14, 2017
Solved

Using ReadyNas 102 with dynamic IP

I've just switched across to the NBN and, unfortunately, the modem supplied does not allow you to fix IP addresses. So I have this issue where the IP address changes and my backups and mapping of the...
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  • mjs4573's avatar
    mjs4573
    Apr 16, 2017

    Thanks Stephen and Sandshark................

     

    So I've changed my IP start and end addresses on the modem to 2 and 150 respectively and assigned a static IP address outside of that range for the NAS.  So far, so good. I'll keep watch to see what eventuates.

     

    The Technicolor 784 modem for which you (Stephen) supplied the link to the manual is a completely different setup and interface to the 789 unfortunately. So it definitely seems the case that the 789 has no capability to fix IP addresses. I've hunted through the user interface everywhere and there appears nothing remotely connected to fixing IP addresses.

     

    I'll monitor the changes over the coming days and, if it all works out ok, then I'll accept the advice as a solution.

     

    Thanks heaps again for your help and advice.

     

    Cheers..............Mike

StephenB's avatar
StephenB
Guru - Experienced User
Apr 14, 2017
mjs4573 wrote:

I've just switched across to the NBN and, unfortunately, the modem supplied does not allow you to fix IP addresses.

What is the router model?   The feature has more than one name (address reservation, arp binding, mac binding, ...)

mjs4573 wrote:

Does anyone have a solution on how to either map the drive using dynamic IP or a way of fixing the IP address?

 

You can map by hostname.  You can also assign a static IP address in the NAS.  But let's confirm that the modem doesn't have the ability to lock down the IP address.

mjs4573's avatar
mjs4573
Aspirant
Apr 15, 2017

Hi again Stephen.

 

I've double-checked the NBN modem to see if there was a possibility to fix an IP but it doesn't have the ability. I also spoke to my ISP yesterday and they confirmed it.  I could pay an extra $10 per month to obtain a "gaming pack" which also assigns a static IP to the modem.  Apart from my unwillingness to fork out the extra cash each month, I also wasn't sure that would indeed fix the problem ie would assigning a static IP address to the modem itself then prevent my gear attached to the modem dropping their IPs?

 

I've also gone into the ReadyNas and assigned the current IP as a static address unstead of using DHCP.  So I'll keep an eye on this to see if it actually solves the issue.

 

What do you think??

 

Thanks.................Mike

  • StephenB's avatar
    StephenB
    Guru - Experienced User
    Apr 15, 2017
    mjs4573 wrote:

    I've double-checked the NBN modem to see if there was a possibility to fix an IP but it doesn't have the ability. I also spoke to my ISP yesterday and they confirmed it.  I could pay an extra $10 per month to obtain a "gaming pack" which also assigns a static IP to the modem.  

    First, if you have more than one device connected to the internet through the modem, then your modem is actually a gateway (modem+router).

     

    I think you are confusing the public IP address of the modem with the private address your devices use.  Your extra $10/month would get you a static public IP address. What you want is a stable private address for the NAS.  It's possible your ISP contact was also confused about what you needed when he told you the modem gateway didn't have the feature.

     

    Generally it's easy to find on-line user manuals for the modems/gateways - if you simply post the modem manufacturer+model number, then it's be easy for us to check for the feature.

     

    mjs4573 wrote:

     

    I've also gone into the ReadyNas and assigned the current IP as a static address unstead of using DHCP.  So I'll keep an eye on this to see if it actually solves the issue.

     

    That will work, as long as the static IP address is 

    • on the right subnet
    • outside of the range the gateway manages with dhcp

    Common mistakes include

    • configuring the wrong gateway
    • forgetting to configure DNS servers

    If you ever change modems, make sure you reset the NAS to use DHCP before you make the switch.  Different gateways/routers use different private addresses ranges, and you can lost connectivity to the NAS if you forget to do this.

     

    There are ways to resolve that problem, but it's easiest to prevent it in the first place.  That's one reason we recommend address reservation.

    • mjs4573's avatar
      mjs4573
      Aspirant
      Apr 16, 2017

      Thanks Stephen.

       

      I'm not sure if I was being confused about the public v  private IP, but I think the support person at my ISP (My Republic) may have been. I indicated to her that buying a pack that would give me a static IP (public) for my modem would probably not solve my issue of allocating a static IP (private) for my devices connecting to my modem.  And I think you've just confirmed that.

       

      The modem is a Technicolor TG789vac v2 HP and I can't seem to find any online manual for it explaining anything about fixing an IP address.

       

      As for the static IP I've set on the ReadyNas, I've searched the modem setting and think I've found the IP range you mention.  Under 'Local Network' it has the following -

       

      DHCP Server ON
      Network address
      xxx.xxx.1.0
      DHCP Start address
      xxx.xxx.1.2
      DHCP End address
      xxx.xxx.1.254

       

      Where xxx signifies the same 2 prefixes.  So I presume the IP address for my ReadyNas should sit outside this range, correct?? Or have I totally got the wrong end of the dog here?

       

      Cheers..................Mike

      • Sandshark's avatar
        Sandshark
        Sensei
        Apr 16, 2017
        mjs4573 wrote:

         

        As for the static IP I've set on the ReadyNas, I've searched the modem setting and think I've found the IP range you mention.  Under 'Local Network' it has the following -

         

        DHCP Server ON
        Network address
        xxx.xxx.1.0
        DHCP Start address
        xxx.xxx.1.2
        DHCP End address
        xxx.xxx.1.254

        If you were to reserve an address in the NAS, you would not want it outside of that particular range, you want to change the range and then assign the static IP outside of the new range.  Everything on the net needs to be in the same sub-net (same first three numbers).  While 255 seems to be unallocated, it is likely reserved for something.

         

        It wasn't too hard to find a manual for your router http://setuprouter.com/router/technicolor/tg789vac-mediaaccess/manual-2126.pdf, but it really fails to cover a lot.  It doesn't even cover the info you provided above.  This page http://setuprouter.com/router/technicolor/tg789vac/ip-address.htm shows how to get to the "Configure LAN" page, and the "Static Leases" section is where you reserve an IP address.  That is a much better solution than reserving it in the NAS.

         

        If you reserve an address other than the one the NAS currently occupies, you will need to reboot the NAS to acquire the new address and then re-login to the new address.

         

         

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