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I have a nighthawk R7000 which gets the IP address of my ISP router (Drei router). I use No-Ip for DDNS. Some days ago I noticed that the internet port in the router settings shows a different IP address than the one of my ISP. No-Ip gets updated fine with the correct address. Simply the internet port shows a different IP. Can anyone explain why and how to fix this?
> [...] my netgear router doesn't get the public ip at the internet > port.
If the R7000 WAN/Internet interface is configured as BASIC > Internet > Internet IP Address : Get Dynamically from ISP, then the WAN/Internet address of the R7000 is determined by whatever is connected to its WAN/Internet port. If that address something like "10.209.x.y", then the fault lies with the "a drei Router" or with your ISP.
> [...] First I paid for a static ip address and it worked (static > address was at the internet port) but now I changed back to a dynamic > public ip [...]
Better late than never, I suppose.
That could explain it. When you had a static address, I'd guess that your ISP gave you a static public address. Now that you have a dynamic address, I'd guess that your ISP is using "Carrier-grade NAT", and it's giving you a private (CGN) address, not a public address.
> The ip adress of the internet port is 10.209.XX.XXX
That one. (It's a private address, so there's no need to hide any of it.)
> I know what the ip address of my drei router is [...]
Do you? How, exactly? If it's really "in bridge mode"? Did your "my drei router" tell you that, or is that what you got from the DDNS service (or some site like https://whatismyipaddress.com)?
As usual, showing actual actions (commands) with their actual results (error messages, LED indicators, ...) can be more helpful than vague descriptions or interpretations. How you arrived at your conclusion may be more important than what your conclusion is.
> [...] I dont understand why it doesn't assign it to my netgear router > like it did when I had a static ip address.
Ask your ISP about "Carrier-grade NAT". If your "my drei router" is really "in bridge mode", then I would expect it to be too stupid to assign anything to anyone. All it would do would be to let your R7000 talk directly to your ISP, and _that_ is who would determine the WAN/Internet IP address of the R7000. In this case, the R7000 appears to be the victim, not the perpetrator.
> I have a nighthawk R7000 which gets the IP address of my ISP router > (Drei router). [...]
Huh? What is your "my ISP router (Drei router)"? How many routers are you using? What, exactly, is connected to what? (Hint: If a device has multiple Ethernet ports, then "connected to device" is not enough detail.) Especially, to what, exactly, is the WAN/Internet interface of the R7000 connected? What is the IP address of the R7000 WAN/Internet interface?
> [...] No-Ip gets updated fine with the correct address. [...]
Which address is "the correct address"? What is this "the correct address"? ("a.b" of "a.b.c.d" would be enough of your public IP address to satisfy my curiosity.)
I use a drei Router in Bridge mode. It should assign the public ip address to my r7000 at the internet port. But the internet port of my r7000 is different.
It's in bridge mode because I put it in. First I paid for a static ip address and it worked (static address was at the internet port) but now I changed back to a dynamic public ip and my netgear router doesn't get the public ip at the internet port.
The ip adress of the internet port is 10.209.XX.XXX
I know what the ip address of my drei router is but I dont understand why it doesn't assign it to my netgear router like it did when I had a static ip address.
> [...] my netgear router doesn't get the public ip at the internet > port.
If the R7000 WAN/Internet interface is configured as BASIC > Internet > Internet IP Address : Get Dynamically from ISP, then the WAN/Internet address of the R7000 is determined by whatever is connected to its WAN/Internet port. If that address something like "10.209.x.y", then the fault lies with the "a drei Router" or with your ISP.
> [...] First I paid for a static ip address and it worked (static > address was at the internet port) but now I changed back to a dynamic > public ip [...]
Better late than never, I suppose.
That could explain it. When you had a static address, I'd guess that your ISP gave you a static public address. Now that you have a dynamic address, I'd guess that your ISP is using "Carrier-grade NAT", and it's giving you a private (CGN) address, not a public address.
> The ip adress of the internet port is 10.209.XX.XXX
That one. (It's a private address, so there's no need to hide any of it.)
> I know what the ip address of my drei router is [...]
Do you? How, exactly? If it's really "in bridge mode"? Did your "my drei router" tell you that, or is that what you got from the DDNS service (or some site like https://whatismyipaddress.com)?
As usual, showing actual actions (commands) with their actual results (error messages, LED indicators, ...) can be more helpful than vague descriptions or interpretations. How you arrived at your conclusion may be more important than what your conclusion is.
> [...] I dont understand why it doesn't assign it to my netgear router > like it did when I had a static ip address.
Ask your ISP about "Carrier-grade NAT". If your "my drei router" is really "in bridge mode", then I would expect it to be too stupid to assign anything to anyone. All it would do would be to let your R7000 talk directly to your ISP, and _that_ is who would determine the WAN/Internet IP address of the R7000. In this case, the R7000 appears to be the victim, not the perpetrator.
