diff --git a/config/cfgroot/advoptions-list b/config/cfgroot/advoptions-list
index 8a1e75ebb..6330aefde 100644
--- a/config/cfgroot/advoptions-list
+++ b/config/cfgroot/advoptions-list
@@ -22,6 +22,7 @@ option mask-supplier flag;
 option max-dgram-reassembly uint16;
 option merit-dump string;
 option mobile-ip-home-agent ip-address [, ip-address... ];
+option ms-classless-static-routes string;
 option netbios-dd-server ip-address [, ip-address... ];
 option netbios-node-type uint8;
 option netbios-scope string;
@@ -38,6 +39,7 @@ option perform-mask-discovery flag;
 option policy-filter ip-address ip-address [, ip-address ip-address... ];
 option pop-server ip-address [, ip-address... ];
 option resource-location-servers ip-address [, ip-address... ];
+option rfc3442-classless-static-routes string;
 option root-path string;
 option router-discovery flag;
 option router-solicitation-address ip-address;