ER605 ER7206 - “Use Fixed IP Address” (DHCP Reservation) Doesn't Take Effect. [Thread Closed]

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.

ER605 ER7206 - “Use Fixed IP Address” (DHCP Reservation) Doesn't Take Effect. [Thread Closed]

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
57 Reply
Re:ER605 ER7206 - “Use Fixed IP Address” (DHCP Reservation) Doesn't Take Effect.
2023-01-09 14:02:15

  @modebm 192.168.1.x is a non routable IP address so your answer would be LAN address. 

  0  
  0  
#66
Options
Re:ER605 ER7206 - “Use Fixed IP Address” (DHCP Reservation) Doesn't Take Effect.
2023-01-09 14:08:02 - last edited 2023-01-09 17:34:23

Yes it should be but if the WAN interface is inside a DMZ in a double-NAT scenario and the IPs for the networks where heavily tweaks so that .1 is not the routing IP of the network segment, this would be possible. Also in Lab environments with such IP setup where .1 is the WAN IP of the router you could do such thng. I wanted to be sure here before writing this.

 

If it is the address on a LAN port it is an expected result as from inside you want to reach those ports, thus they should be open.

  0  
  0  
#67
Options
Re:ER605 ER7206 - “Use Fixed IP Address” (DHCP Reservation) Doesn't Take Effect.
2023-01-10 05:09:27

  @modebm  It is a WAN interface, i just change the default ip address of 192.168.0.1 to 192.168.1.1. 

modebm wrote

  @mrusli is 192.168.1.1 a WAN or a LAN interface?

 

  0  
  0  
#68
Options
Re:ER605 ER7206 - “Use Fixed IP Address” (DHCP Reservation) Doesn't Take Effect.
2023-01-10 06:36:36 - last edited 2023-01-10 06:47:53

  @mrusli I am sorry but I have to tell you that it is not the WAN side. As @Fleegle61 and I was suspecting you are pinging the routing IP of a LAN interface of the router and this has to be open to a) allow accessing the management interface from inside and b) allow the Omada controller to configure the device. But mind you this is from **inside**! This is desired and intended!

 

WAN would either be a public IP address or the client IP in a double NAT where you are checking from within the DMZ. The .1 address is usually not reachable from there as it the router is a NAT router.

 

-----[ modem ]-------WAN-IP--->[ (client interface for the modem) router (routing interface)]<--- 192.168.1.1 --- computer

 

or

 

-----[ router 1 ]-------DMZ with its own IP range--->[ (client interface for the modem) router 2 (routing interface)]<--- 192.168.1.1 ---[ computer with an IP of 192.168.1.xxx]

 

You need to call nmap from either through the modem or within the router 1. and there you can see that the ports are in stealth mode as they should. At least it is on my ER605.

 

Or in simple tearms: the nmap requests need to come through a WAN cable ;) and there you would not be able to ping 192.168.1.1 as I stated.

  0  
  0  
#69
Options
Re:ER605 ER7206 - “Use Fixed IP Address” (DHCP Reservation) Doesn't Take Effect.
2023-01-10 17:51:27

  @modebm 

 

But I have tested the lastest November 2022 firmware for the ER605 V2. That i tested the ports via GRC Sheildup that the latest beta firmware failed the stealth mode test. That need to be fix immediately just like the previous version of beta ER605 V2 in July firmware version. And the performance is slower that 7% what was reported by one user in the forum. https://community.tp-link.com/en/business/forum/topic/522628?replyId=1166546

 

 

  0  
  0  
#70
Options
Re:ER605 ER7206 - “Use Fixed IP Address” (DHCP Reservation) Doesn't Take Effect.
2023-01-13 06:25:07 - last edited 2023-01-13 06:28:00

  @modebm 

 

I connected in this manner.

 

Internet ----> [Fiber Optic Modem]----> [ER605 v2 WAN Ethernet port connected directly to Fiber Optic Modem]----> ER05 V2 LAN Ethernet connected to computer ------> Computer

 

Did a GRC Sheild up firewall test. the latest beta firmware for the ER605 V2 on November 2022 release failed the GRC Sheild up test and not even stealth. 

 

The old ER605 V2 firmware release on July 2022 worked. But not the ER605 V2 November 2022 firmware, it is confirmed that the latest beta firmware is failed with GRC Sheild up firewall test.

 

@Fae You need to fix this GRC Sheild Up failed problem with the latest firmware ER605 V2.  

  0  
  0  
#71
Options
Re:ER605 ER7206 - “Use Fixed IP Address” (DHCP Reservation) Doesn't Take Effect. [Thread Closed]-Solution
2023-01-30 07:16:15 - last edited 2023-01-30 07:16:22

Update as of Jan 30th 2023:

Thank you all for your feedback on this forum to let us know that the DHCP issues are still existed, and more importantly, thanks for our loyal users who worked with our support engineers to figure out the issue with great cooperation.

 

Please follow the solution post below for the new beta firmware to fix all the DHCP issues that have been located. 

ER605 ER7206 v1 - DHCP Server May Fail With 1.2.0 and 1.2.1 Firmware

 

As the above solution post has already updated the Beta firmware for the DHCP issues, and will be updated if there is any new DHCP issues came up, so this old thread will be locked to stop updating.

 

Thank you all for your great patience when we're trying to figure out the issue and fix it!

Any further issues with the above Beta firmware, please feel free to Start a New Thread from HERE.

>> Omada EAP Firmware Trial Available Here << *Try filtering posts on each forum by Label of [Early Access]*
Recommended Solution
  0  
  0  
#72
Options