DHCP issues on VAP (new bridge)

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scope2
DD-WRT User


Joined: 12 Jul 2017
Posts: 181

PostPosted: Sun Mar 05, 2023 19:56    Post subject: DHCP issues on VAP (new bridge) Reply with quote
Router: R7800
Firmware: R51887

Following a factory reset I am trying to configure a VAP on a new bridge and its own DHCP Server.. Im following notes I made last time I did this, as well as screenshots of the system pre-factory reset.. But I cant for the life of me get an IP when I connect to the VAP:

VAP Setup:


Bridge:


Assign to Bridge:


Network Config and DHCP:


DNSMASQ:


When I connect to the VAP it does not give me an IP address..?

The Log shows the following:
ar 5 19:32:30 R7800 daemon.warn dnsmasq-dhcp[22692]: DHCP packet received on br1 which has no address
Mar 5 19:32:31 R7800 daemon.warn dnsmasq-dhcp[22692]: DHCP packet received on br1 which has no address
Mar 5 19:32:33 R7800 daemon.warn dnsmasq-dhcp[22692]: DHCP packet received on br1 which has no address
Mar 5 19:32:35 R7800 daemon.warn dnsmasq-dhcp[22692]: DHCP packet received on br1 which has no address
Mar 5 19:32:36 R7800 daemon.warn dnsmasq-dhcp[22692]: DHCP packet received on br1 which has no address

Have I missed anything, or is this an issue with the firmware I am using?
(this is the thread from last time I had this issue, along with some answers, all of which I think I have resolved above: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=330635&highlight=
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ho1Aetoo
DD-WRT Guru


Joined: 19 Feb 2019
Posts: 2927
Location: Germany

PostPosted: Sun Mar 05, 2023 20:05    Post subject: Reply with quote
Your bridge br1 needs a different IP address in a different subnet than your router.
ebsp 192.168.2.1/24
important is also the subnetmask in CIDR format (/24)
scope2
DD-WRT User


Joined: 12 Jul 2017
Posts: 181

PostPosted: Sun Mar 05, 2023 21:38    Post subject: Reply with quote
ho1Aetoo wrote:
Your bridge br1 needs a different IP address in a different subnet than your router.
ebsp 192.168.2.1/24
important is also the subnetmask in CIDR format (/24)


The /24 was an oversight from my part.. It still didnt work, which I think it should, as br0 is on 192.168.0.1.. Anyway, switching it to 192.168.2.1/24 worked.. So thanks for your help. Smile
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