User manual D-LINK DES-3550

[. . . ] D-Link TM DES-3550 Managed 48-port 10/100Mbps and 2GE ports Layer 2 Ethernet Switch Manual DES-3550 Layer 2 Fast Ethernet Switch User's Guide ____________________ Information in this document is subject to change without notice. © 2005 D-Link Computer Corporation. Reproduction in any manner whatsoever without the written permission of D-Link Computer Corporation is strictly forbidden. Trademarks used in this text: D-Link and the D-LINK logo are trademarks of D-Link Computer Corporation; Microsoft and Windows are registered trademarks of Microsoft Corporation. [. . . ] Select Packet Content Mask to specify a mask to hide the content of the packet header. Selecting this option instructs the Switch to examine the VLAN part of each packet header and use this as the, or part of the criterion for forwarding. Type Vlan 93 DES-3550 Layer 2 Fast Ethernet Switch User's Guide Source IP Mask Destination IP Mask Source IP Mask - Enter an IP address mask for the source IP address. Destination IP Mask - Enter an IP address mask for the destination IP address. Selecting this option instructs the Switch to examine the DiffServ Code part of each packet header and use this as the, or part of the criterion for forwarding. Selecting this option instructs the Switch to examine the protocol type value in each frame's header. You must then specify what protocol(s) to include according to the following guidelines: Select ICMP to instruct the Switch to examine the Internet Control Message Protocol (ICMP) field in each frame's header. Select Type to further specify that the access profile will apply an ICMP type value, or specify Code to further specify that the access profile will apply an ICMP code value. Select IGMP to instruct the Switch to examine the Internet Group Management Protocol (IGMP) field in each frame's header. Select Type to further specify that the access profile will apply an IGMP type value. Select TCP to use the TCP port number contained in an incoming packet as the forwarding criterion. Selecting TCP requires that you specify a source port mask and/or a destination port mask. The user may also identify which flag bits to deny. Flag bits are parts of a packet that determine what to do with the packet. The user may deny packets by denying certain flag bits within the packets, by checking the boxes corresponding to the flag bits of the TCP field. The user may choose between urg (urgent), ack (acknowledgement), psh (push), rst (reset), syn (synchronize), and fin (finish). src port mask - Specify a TCP port mask for the source port in hex form (hex 0x0-0xffff), which you wish to deny. dest port mask - Specify a TCP port mask for the destination port in hex form (hex 0x0-0xffff) which you wish to deny. Select UDP to use the UDP port number contained in an incoming packet as the forwarding criterion. Selecting UDP requires that you specify a source port mask and/or a destination port mask. src port mask - Specify a TCP port mask for the source port in hex form (hex 0x0-0xffff). dest port mask - Specify a TCP port mask for the destination port in hex form (hex 0x0-0xffff). protocol id - user value: Enter a value defining the protocol id in the packet header you wish to mask. [. . . ] Repair by anyone other than D-Link or an Authorized D-Link Service Office will void this Warranty. Disclaimer of Other Warranties: EXCEPT FOR THE LIMITED WARRANTY SPECIFIED HEREIN, THE PRODUCT IS PROVIDED "AS-IS" WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IF ANY IMPLIED WARRANTY CANNOT BE DISCLAIMED IN ANY TERRITORY WHERE A PRODUCT IS SOLD, THE DURATION OF SUCH IMPLIED WARRANTY SHALL BE LIMITED TO NINETY (90) DAYS. EXCEPT AS EXPRESSLY COVERED UNDER THE LIMITED WARRANTY PROVIDED HEREIN, THE · 190 ENTIRE RISK AS TO THE QUALITY, SELECTION AND PERFORMANCE OF THE PRODUCT IS WITH THE PURCHASER OF THE PRODUCT. [. . . ]