3Com Switch 7750 Configuration Guide

386 CHAPTER 37: IP ROUTING POLICY CONFIGURATION
the condition. However, if all the items are in the deny mode, no route will pass
the ip-prefix filtering. You can define the item “permit 0.0.0.0 0 less-equal 32”
after multiple items in the deny mode for all other routes to pass the filtering (if
less-equal 32 is not specified, only the default route will be matched).