A variable-length field whose meaning depends on packetRuleType. If bridgeForbidOui, it specifies a bit pattern to be matched in a packet, stored as a string, but specified in the pattern 'nn:nn:nn...nn:nn', where 'nn' is a hex number specifying a byte of the pattern. E.g. a packetRuleValue of '00:02:02' specifies the OUI to be dropped. If dhcpRelay, it is ascii integer which specifies dhcp subnet group. If bridgeInsertOption82, this value is ignored. If bridgeInsertPPPoEVendorTag, it specifies an ASCII string of up to 48 bytes to be inserted into PPPoE discovery packets (PADI/PADR) which transit this node. String will be inserted as a Vendor-Specific tag. If rateLimitDiscard, this value represents a maximum rate (in kbps). If aclAllow/aclDeny, a text string of the form: all | [Keyword NamedValue | Value[/N]]* where Keyword identifies the field of interest, Value is context dependent on the field, NamedValue is an alias for a Value. N indicates the number of most significant bits of Value to test. If omitted it defaults to the max allowed for the field.