Now I also have this problem:
Jan 21 2016 09:17:48 BJT: %DHCP_SNOOPING-5-DHCP_SNOOPING_MATCH_MAC_FAIL: DHCP_SNOOPING drop message because the chaddr doesn't match source mac, message type: DHCPDISCOVER, chaddr: 00c2.c629.7efe, MAC sa: 3c97.0ecd.7c00
...
