3Com HomeConnect 3CP3647 Cli User's Manual

Also see for HomeConnect 3CP3647: Installation guide

Contents

Assigning Filters 4-5will define in the future. Also, use the # sign to add comments or what you expectthe filter to do for future reference.4 Enter the rules you are defining. Observe the following guidelines.n Begin each rule with a unique line number ranging from 1 - 998.n Arrange rules in increasing line number order within each protocol section.n Arrange rules so that the rules you expect to be matched most frequently aretoward the top of the listn Delimit each rule with a semi-colon. Example:BR-ETH 1 ACCEPT src-addr = 00-20-69-00-00-01;2 ACCEPT src-addr = 00-20-69-00-00-02;999 DENY;5 Inspect the file to ensure that it meets all filtering rules.6 This step is important since you cannot edit the filter file from within the CLI. Toedit the file, you must modify it using a text editor, TFTP the modified file into theFLASH (replacing the original file) and verify the filter using the verify filtercommand.7 Save the filter file using a .flt extension. The filter file extension will allow you todifferentiate the filter file from other files stored in the bridge FLASH memory.8 You can use the list files command to ensure the filter file was successfully storedin the bridge FLASH memory.9 Configure a PC as a Trivial File Transfer Protocol (TFTP) client of the bridge byentering add TFTP client .10 From a machine that has access to the same network as the bridge, use a TFTPcommand to transfer the filter file to the bridge FLASH memory. For example,from the workstation command line enter tftp <3Com HomeConnect ADSLModem Ethernet IP address> put 11 The bridge does not recognize a filter file stored in its FLASH memory until youadd it to the managed filter table. To notify the unit about the filter file for the firsttime, you must issue the CLI command add filter to add the filter to themanaged filter table. When the filter is added, the unit automatically verifies thefilter file syntax. If you modified a file that had already been added, use the deletefilter command to remove the old file before TFTPing the new file. Thenuse the add filter command again or TFTP the new file over the old oneand use the verify filter command.12 If the syntax is valid, no message is generated and the command prompt returns. Ifthe syntax is not valid, error messages are generated detailing the source of theerrors.13 Apply the filter to the appropriate interface or port profile. After replacing a file,you need to re-apply the filter for the new filter file to take effect.For more details, refer to the next two sections. Assigning Filters discusses howto decide where to apply a filter, and Applying Filters explains the appropriateCLI commands to use.Assigning Filters Once a filter has been added to bridge’s list of managed filters, you can assign it tothe unit’s: