Unable to enable DHCP server for OPT1 interface

mindless · May 6, 2017, 2:07 PM

Hi!

I'm trying to configure a DHCP server for my OPT1 interface.
The problem is that there are no "tab" for the OPT1 interface under DHCP Server configuration in the web interface??

The interface is assigned an IPv4 IP-adress and so on, if I connect a computer with a static IP to that interface I can
reach the web interface.
But still I'm unable to configure DHCP server on OPT1 interface… Though it works just fine for my LAN interface!
Tried removing and adding the interface, rebooting, reconfigure and so on.

Anyone who can help?
Or just tell me "You stupid son of a ..., you just forgot about this simple thing!!" :P

phil.davis · May 6, 2017, 2:17 PM

When an interface has StaticIPv4 and a static IPv4 address and CIDR then there should be a tab for that interface in DHCP Server.

Is the IPv4 type of the interface set to Static IPv4?

What other odd settings did you make? (e.g. it should NOT have an upstream gateway specified)

mindless · May 6, 2017, 2:28 PM

Thank's for the reply! :)

Well, I have configured it with an IPv4 address and no other settings modified.
To me it's just the same as LAN except for the IP address, but I suppose something is off anyhow.. :P
(attached screen shot)

ptt · May 6, 2017, 2:44 PM

@mindless:

To me it's just the same as LAN except for the IP address,

Is "not the same" ;) you have a /32 (LAN have /24 )

mindless · May 6, 2017, 2:52 PM

Omg!!
I knew it was something really small and stupid I!! :-[ ;D
Think I have looked at that page like a 100 times and "It looks just like my LAN"..

Now my DHCP server works just fine!

Anyhow, thank you sooo much for noticing my stupid error! :)

ptt · May 6, 2017, 2:57 PM

You're welcome !

Glad to be of help

1reason · Mar 29, 2018, 2:57 AM

@ptt:

@mindless:

To me it's just the same as LAN except for the IP address,

Is "not the same" ;) you have a /32 (LAN have /24 )

Saved me, thanks. You have a cold beer waiting for you anytime you're in northern Wisconsin

poiasd · Aug 20, 2020, 1:30 PM

@ptt said in Unable to enable DHCP server for OPT1 interface:

@mindless:

To me it's just the same as LAN except for the IP address,

Is "not the same" ;) you have a /32 (LAN have /24 )

Made an account just to say thanks.

GregTheHun · Oct 1, 2020, 7:55 AM

Sorry for the resurrection, but I have set my interfaces to have Static IPv4 addresses and the option in Services > DHCPv6 Server & RA doesn't show up.

Help please?

GregTheHun · Sep 30, 2020, 3:26 PM

Here's a screenshot of what I'm looking at after clicking "Services > DHCPv6 Server & RA" and it won't give me the option to select another interface. I know for a fact that my OPT interfaces have DHCPv6 as the address method, but I also can't select another interface, other than LAN, to Track Interface with WAN.

(Sorry, apparently I can't edit a post after 3600 seconds)

Gertjan · Oct 1, 2020, 7:55 AM

@GregTheHun said in Unable to enable DHCP server for OPT1 interface:

my interfaces to have Static IPv4 addresses

You can even disable / remove the IPv4 address on your interface.
For "DHCPv6 Server & RA" to work, you should have a valid IPv6 set up.
If your question was remotely related to the subject of this thread, you have set a /128. Which leave zero space for a pool, so DHCP (V6) isn't possible.
You didn't do that ?? Did you ?

@GregTheHun said in Unable to enable DHCP server for OPT1 interface:

I know for a fact that my OPT interfaces have DHCPv6 as the address method

Show the details ?! :