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DGA0122 Public IPs

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Unable to set or change the LAN address when using public IPs

  • Date reported 2020-12-08
  • Software Version 19.4 (19.4.0207-4381030)
  • Status: With Technicolor

If you want to set the Local Network IP address via the web interface to a public IP then you will get the error 'Cannot use an address in this address range' and will be unable to change it.

It seems the web interface only allows RFC1918 addresses to be used as the 'Local IPv4 Address'

However, when A&A program the router via TR069, it is possible for it to be configured with a public subnet.

This bug only affects you if you want to change the Local IPv4 Address to a public IP yourself, via the web interface.


Staff can re-configure the LAN subnet via our TR-069 programming - this can be used if you change your block of IPs or if you want to change from using private IPs ( to public ones

Another work around is to set up the router for dual LAN subnets - that is to have the private IPs as well as the Public Subnet. This is achieved by:

  1. Go to gateway tile,
  2. clicking configuration and then clicking 'setup your gateway'
  3. which you can specify a static IP address when changing the routed
  4. type to static.

Note: DHCP will use the private IPs, it's not possible to change it.