Re: Freeradius DHCP and "Failed adding ARP entry: Failed to add entry in ARP cache: Operation not permitted (1)"

On Aug 2, 2021, at 3:57 PM, CpServiceSPb <cpservicespb@gmail.com> wrote:

I may be wrong. But I detected that the issue appears for udp 0 0.0.0.0:67 only. If there is udp unicast_IP:67 (for example udp 192.168.0.254:67 - packets receiving from relays) , there is no such issue.

Yes... if the address is unicast, then ARP works. FreeRADIUS could create DHCP packets itself and send them. But that also requires opening a "raw" socket. So it will still need special permissions. Alan DeKok.