Table B-1. Allowable Primitives (Continued)
Primitive Explanation
expr relop expr True if the relation holds, where
• relop is one of >, <, >=, <=, =, !=
• expr is an arithmetic expression composed of integer constants (expressed in
standard C syntax), the normal binary operators [+, -, *, /, &, |], a length operator,
and special packet data accessors.
To access data inside the packet, use the syntax protocol [expr: size].
Proto is one of ether, fddi, tr, ip, arp, rarp, tcp, udp, icmp or ip6, and indicates the
protocol layer for the index operation. Note that tcp, udp and other upper-layer protocol
types only apply to IPv4, not IPv6
• The byte offset, relative to the indicated protocol layer, is given by expr.
• Size is optional and indicates the number of bytes in the field of interest; it can be
either one, two, or four, and defaults to one.
The length operator, indicated by the keyword len, gives the length of the packet.
B-6 HP ProCurve Secure Access 700wl Series Management and Configuration Guide
