Defines starting with `i' in netccitt

• ia_flags netccitt/pk_var.h:123
• ia_ifp netccitt/pk_var.h:122
• ia_maxlcn netccitt/pk_var.h:125
• IEEEPROTO_802LLC netccitt/x25.h:55
• IFRAME netccitt/hdlc.h:140
• IGNORE_PACKET netccitt/pk.h:94
• ILLEGAL netccitt/hdlc.h:141
• INIT netccitt/hdlc.h:119
• INTERRUPT netccitt/pk.h:185
• INTERRUPT_CONF netccitt/pk.h:186
• INVALID_PACKET netccitt/pk.h:195