KVM guest does not receive dhcp request from local network, what to do?

Question

DHCP

On Centos 7, a virtual machine was raised and I run dhcp in it, and so this virtual machine does not receive udp broadcast, although everything is on the local network, and KVM Host itself receives it, but the bridge somehow filters these packets, or something else, in everything else the network is working and the guest can access the Internet and the rest.
Has anyone else had something similar and how did you solve it?

Answer 1

the whole thing turned out to be nwfilter from KVM, there it was, having removed all the filters from the virtual machine, everything worked, there were a lot of nested filters, so I didn’t look for which one created the problem
PS filter just didn’t let through UDP port 67 and a bunch of TFTP services

Answer 2

Maybe the firewall is blocking something?