Zywall 310 : DHCP may not work (interface overlap)

Emerald
Emerald Posts: 20  Freshman Member
edited April 2021 in Security
Afternoon,

We are un able to bind a ip address to  a mad address in "edit ethernet" , we cant ever edit teh discription in here.
Error is >
Interface IP addressing is overlap with : interface:ge3:M IP:172.x.x.x etc, DHCP may not work.

On looking the ip address on this interface is not repeated anywhere.

Any pointers please?

Accepted Solution

All Replies

  • Zyxel_Stanley
    Zyxel_Stanley Posts: 1,139  Zyxel Employee

    Hi @Emerald  

    The error message is mentioned your IP subnet has overlap.

    Can you use CLI command to shows all of your interface information to us?

    Router# show interface all

     

    And let us know what’s the steps to reproduce it.


  • Emerald
    Emerald Posts: 20  Freshman Member
    Hi thanks for response, its clear now i see the issue
    6   ge3             1000M/Full          172.16.100.1    255.255.252.0   Static 
    7   ge3:m           Up                  172.16.100.2    255.255.252.0   Device HA

    however this is because i have device HA setup
    how can i work around?

  • imaohw
    imaohw Posts: 118  Ally Member
    @Zyxel_Stanley

    I have exactly the same issue.  It appears that once you set up Device HA and give a port an administration IP for Device HA in the same subnet that the port is configured for (as required) you can no longer make any changes to the DHCP setting for that port without getting the overlap error.

    i tried to increase the DHCP pool size and got the error.

    This looks like a bug!
  • Zyxel_Stanley
    Zyxel_Stanley Posts: 1,139  Zyxel Employee

    Hi @Emerald

    This issue has fixed, and I will provide firmware to you by private message.

    @imaohw

    What’s your gateway model? I can provide firmware  by private message.

  • imaohw
    imaohw Posts: 118  Ally Member
    @Zyxel_Stanley

    I have Zywall 310s and USG1100s.  Both have this issue.
  • Emerald
    Emerald Posts: 20  Freshman Member
    Received thanks (im currently on V4.31(AAAB.0) / 2018-03-27 17:03:23 )
    Ill look to install this over this coming weekend

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