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Hello,
I have working network configuration, VMs have access to the external
network, hosts have access to VMs. But DHCP replies are not making it
back into the VMs.

tcpdump and iptables tracing show me that the requests make it through
just fine, but the replies don't make it out of the qdhcp-XXXX
namespace (the go out the tap interface there but I'm not sure what
happens to them next)

How should I go about debugging this?

Thanks!
-- 
Mina Nagy Zaki