[Solved] DHCP Denied
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I am not sure what would cause 1 system to have this error and another one on the same port to work. I cannot find any differences between the DHCP settings on the other VLAN that it works on. It does link and the client is an Intel 2.5Gb NIC, but it is successfully linking at 1 Gb.
The FW is an XG-7100 running 21.05.1-RELEASE (amd64)Any ideas where to look?
Backstory, this NIC does not like my switch and frequently will not link so I moved it to an unused port on the FW to see if it would work better there. I may have been wrong...
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@andyrh if you have dhcp enable - there is hidden rule to allow dhcp.. Such a block by default deny should not be possible. Unless dhcp is not enabled on that interface.
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DHCP is enabled and does work for another system. There is not a switch connected to that FW port, but I do not see that causing the problem.
Normally there are no clients using the port.There are few rules on the port.
Kind of a head scratcher.
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@andyrh Your post shows DHCP on LAN but your OP shows lagg0.4091?
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@steveits yup good catch - prob has vlan setup with tags, and non tagged traffic hitting the bare interface.. Which yeah would be blocked by default rule because the dhcp rules would be added to the lan, with tag? etc..
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I am not understanding what you are telling me.
The client is untagged. The interface is the default LAN interface.
Where am I missing what you have found? -
@andyrh This is not the LAN interface:
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Ok, I think I fixed it. I cannot test right now. Does this look right?
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Yes, if the LAN is assigned as lagg0.129.
Steve
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That was most of the problem. I also had to change the VID of each port on the switch and it worked after that.
Thank you for the help.