Satish Patel <satish....@gmail.com> wrote: > After reading further related DHCP checksum issue, it seems we need > that rules when you running DHCP on same host machine where your guest > using host DHCP service, in that case virtual nic won't do checksum. > If your DHCP running on different host then your physical nic perform > checksum.
Partially right, its only needed for older dhcp software that relies on packet-header checksum correctness (metadata contains info when checksum will be filled in by nic later, modern servers will use that and ignore the packet-header checksums in this case). If you remove the rule and your VMs still get leases via DHCP then the CHECKSUM workaround isn't needed.
