Hi, Which SEOS version for SE600 supports DHCP OPTION 43? Now I have version SEOS-12.1.1.12p15-Release: [test]lab(config-dhcp-subnet)#option 43 ip-address 1.2.3.4 Error: Unsupported DHCP server option code: 43 -- Best regards, Łukasz Kopiszka http://alfa-system.pl