D-Link DES-3350SR Reference Manual - Page 254

DES-3350SR Layer 3 Fast Ethernet Switch User's Guide Command Parameters user_define priority replace_priority replace_dscp delete Due to a chipset limitation, the switch currently supports a maximum of ten access profiles, each containing a maximum of 50 rules − with the additional limitation of 50 rules total for all ten access profiles. Access profiles allow you to establish criteria to determine whether the switch will forward packets based on the information contained in each packet's header. These criteria can be specified on a VLAN-by-VLAN basis. Creating an access profile is divided into two basic parts. First, an access profile must be created using the create access_profile command. For example, if you want to deny all traffic to the subnet 10.42.73.0 to 10.42.73.255, you must first create an access profile that instructs the switch to examine all of the relevant fields of each frame, and specify deny: create access_profile ip source_ip_mask 255.255.255.0 deny profile_id 1 Here we have created an access profile that will examine the IP field of each frame received by the switch. Each source IP address the switch finds will be combined with the source_ip_mask with a logical AND operation. The profile_id parameter is used to give the access profile an identifying number − in this case, 1. The deny parameter instructs the switch to filter any frames that meet the criteria − in this case, 254