Introduction to Filtering | Black Box LR1530A-R3, LR1530A-EU-R3

Introduction to Filtering

( ) brackets	Used in pattern filters to separate portions of filter
	patterns for specific operators.

Example: 12-80&(14-2414-32) This filter pattern will be checked in two operations. First the section in brackets will be checked and then the results of the first check will be used in the second check using the first portion of the filter pattern. If the packet information starting at the 14th octet equals 24 or 32, and the information at the 12th octet equals 80, the filter pattern will match.

60

Image 66

Black Box LR1530A-R3, LR1530A-EU-R3 manual Introduction to Filtering

Contents

Frame Relay/Leased Line Bridge/Router Specifications Normas Oficiales Mexicanas Electrical Safety Statement Page Page Page Contents Introduction to Filtering Appendix D Software Upgrades Page Unpack the unit Select a Site Identify the Connectors Rear View of the CSU-DSU router Connect to the Console Make the LAN ConnectionsMake the WAN Link Connection Installation Power Up the router Login and Enter the Required Configuration Mandatory Configuration Mandatory Configuration Setting the Link Interface Type Set Link Interface Type Location MainLink Interface Type T1/E1 Selection Location Main Setting the T1/E1ParametersService parameters Location Main Framed/unframed/SF/ESF As specifed First channel Number number of channels Set Link Interface Type Location Main Identify the Status LEDs Green Front View of the router Typical Applications & HOW to Configure Them Managing the router Using Menus Configuration Option Name Location Main ConventionsOption Name Basic Frame Relay Configuration Frame Relay configuration Frame Relay enable Location Main Link Speed Location MainLink Speed Auto Learning the Frame Relay Configuration Manual Configuration LMI Type Auto-Learning Location MainLMI Type Quick Start Frame Relay IP AddressIP Address / Subnet mask size PPP Encapsulation Location Main Disabled Basic Leased Line ConfigurationFrame Relay disable Location Main Quick Start PPP Leased Line Connections Basic PPP Leased Line Configuration Local IP Address Location Main Bridge Connection Should You Bridge or Route? Configure as an Ethernet Bridge Bridged Local Area Networks IP Address Applications Configure as an Ethernet IP router IP Routed Local Area Networks IP Address Define an IP Default Gateway Default Gateway Location MainDefault Gateway Define an IP Static Route Edit Static Route Location MainRemote Site Next Hop Cost Add Define an IP Subnet Mask IP Address & Subnet Size Location Main IP Address / mask size Applications Configure as an Ethernet IPX router Novell Servers in Both Locations Applications Novell Servers in One Location Only IPX Routed Local Area Networks Servers on one side IPX Frame Types Location Main PPP Link Configuration Overview Numbered Links Unnumbered Links Server Configure Dynamic Host Configuration ProtocolDhcp Services Location Main IP Address Pool Location Main Local + External DNS Server Configuration DNS Set-Up Location Main Enabled Configure Network Address Translation NATNAT Enabled Location Main NAT Exports Translation type Location Main Configure PPP Security Security Level Location MainSecurity Level Incoming PAP Password Incoming Chap Secret Outgoing PAP Password Outgoing Chap SecretSecurity Database Entry Location Main Configure Firewall 10 Sample Firewall Application Firewall WAN Remote Site Filter direction Location Main FTP & WWW Designated Servers Location Main Firewall LAN Filter Direction Location Main Firewall Table Entry Location Main Firewall Location Main Applications MAC Address Filtering Introduction to Filtering Pattern Filtering Not Introduction to Filtering Bridge NetBIOS &NetBEUI Microsoft WindowsPopular Filters IP & Related Traffic IP Router NetBIOS over TCPBanyan Other interesting TCP Ports Appendix a Menu Trees Menu Tree From previous Page Appendix B Octet Locations on Ethernet Frames Octet Locations on Ethernet Frames Ethernet Type Codes ARP Octet Locations on Ethernet Frames Octet Locations on a Bridged XNS Frame Octet Locations on Ethernet Frames Opening the case Appendix C Servicing Information Identifying the Internal Components CPU J11 Sanity Timer To Clear a Lost PasswordForce Zmodem Software Load Connecting to the Console Connector Figure C-3 Rear View of the Console and LAN Connectors Module WAN Interface ConnectionPinout Information CSU/DSU Module T1/E1 Module T1/E1 Universal WAN Module Connecting cable must be a shielded cable Link Pinouts Servicing Information RS232C / V.24 Link Pinouts DCE RS530 / RS422 Link Pinouts Figure C-8 RS530 / RS422 Link Pinouts 11 / X.21 Link Pinouts Figure C-9 V.11 / X.21 Link Pinouts 11 / X.21 DB25 to DB15 Connector Cable Figure C-10 V.11 / X.21 DB25 to DB15 Connector Cable Null-Modem Cable Configuration Figure C 11 V.35 Null-Modem Cable RS232 / V.24 Null-Modem Cable Figure C-12 RS232 / V.24 Null-Modem Cable Signal Ground DTE Ready a RS530 / RS422 Null-Modem Cable Servicing Information Appendix D Software Upgrades Considerations Servicing Information Page PC used for Tftp transfers Link