Hello, In my network there is Cisco ISG acting as DHCP relay. It relays requests from customers to DHCP server of freeradius: Sep 25 12:51:05.045: DHCPD: input i/f override GigabitEthernet0/1.33 for client Sep 25 12:51:05.045: DHCPD: Reload workspace interface GigabitEthernet0/1.33 tableid 0. Sep 25 12:51:05.049: DHCPD: tableid for 193.200.84.232 on GigabitEthernet0/1.33 is 0 Sep 25 12:51:05.049: DHCPD: client's VPN is . Sep 25 12:51:05.049: DHCPD: using received relay info. Sep 25 12:51:05.049: DHCPD: Sending notification of DISCOVER: Sep 25 12:51:05.049: DHCPD: htype 1 chaddr 00e0.9110.8347 Sep 25 12:51:05.049: DHCPD: remote id 000600226b2a8d52 Sep 25 12:51:05.049: DHCPD: circuit id 000400210103 Sep 25 12:51:05.049: DHCPD: interface = GigabitEthernet0/1.33 Sep 25 12:51:05.049: DHCPD: class id 4d53465420352e30 Sep 25 12:51:05.049: DHCPD: No internally specified class returned Sep 25 12:51:05.049: DHCPD: Looking up binding using address 193.200.84.232 Sep 25 12:51:05.049: DHCPD: Found previous binding with giaddr 193.200.84.232 Sep 25 12:51:05.049: DHCPD: Keeping state for received DHCPDISCOVER, from UNNUM-IF Sep 25 12:51:05.049: DHCPD: setting giaddr to 193.200.84.232. Sep 25 12:51:05.053: DHCPD: BOOTREQUEST from 0100.e091.1083.47 forwarded to 193.200.85.22. freeradius listens 67 port on 193.200.85.22: # sockstat |grep rad freeradius radiusd 94903 5 udp4 193.200.85.22:67 *:* I see incoming packets: # tcpdump -vvvni re0 port 67 tcpdump: listening on re0, link-type EN10MB (Ethernet), capture size 96 bytes 16:05:23.403248 IP (tos 0x0, ttl 254, id 142, offset 0, flags [none], proto UDP (17), length 345) 193.200.84.232.67 > 193.200.85.22.67: BOOTP/DHCP, Request from 00:e0:91:10:83:47, length 317, hops 1, xid 0x4bb0c74b, Flags [none] (0x0000) Gateway-IP 193.200.84.232 Client-Ethernet-Address 00:e0:91:10:83:47 [|bootp] 16:05:26.404455 IP (tos 0x0, ttl 254, id 143, offset 0, flags [none], proto UDP (17), length 345) 193.200.84.232.67 > 193.200.85.22.67: BOOTP/DHCP, Request from 00:e0:91:10:83:47, length 317, hops 1, xid 0x4bb0c74b, secs 768, Flags [none] (0x0000) Gateway-IP 193.200.84.232 Client-Ethernet-Address 00:e0:91:10:83:47 [|bootp] But radiusd does not process them: I see no any debug output when running 'radiusd -X'. The dhcp configuration is default from raddb/sites-available, I only added 'detail' in every dhcp-section. Any ideas? Thanks in advance. -- MINO-RIPE