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Introduction to Filtering

Banyan

(12-0BAD)

(12-80C4)

(12-80C5)

IP Router

IP router pattern filters are applied to IP Ethernet frames that are being routed. When the

router is operating as an IP router, all IP routed frames will be checked against the defined

IP router pattern filters. IP routed frames are unaffected by the bridge pattern filters and

the IPX router pattern filters.

NetBIOS over TCP

NETBIOS Name Service

(22-0089)

NETBIOS Datagram Service

(22-008A)

NETBIOS Session Service

(22-008B)

Note:

Uses the TCP Destination Port location

Other interesting TCP Ports

Decimal

Hex

Usage

FTP

Telnet

SMTP

TFTP

109

POP2

110

POP3

Содержание LR5100A-T

Страница 2: ...servicio deber ser referido a personal de servicio calificado 9 El aparato el ctrico debe ser situado de tal manera que su posici n no interfiera su uso La colocaci n del aparato el ctrico sobre una c...

Страница 3: ...declares that the product conforms with the requirements of the Low Voltage Directive 73 23 EEC and with the requirements of the EMC Directive 89 336 EEC for radiated emissions at the Class A level Th...

Страница 4: ...is performed using the options provided in the menu system The Menu Tree is like an index to the menu options Octet Locations on Ethernet Frames provides a graphical representation of the various com...

Страница 5: ...ateway 20 IP Static Route 20 IPX Routing 21 Novell Servers in Both Locations 21 Novell Servers in One Location Only 22 Novell Server with Dual LANs 24 PPP Overview 25 PPP Link Configuration 25 Numbere...

Страница 6: ...Banyan 62 IP Router 62 NetBIOS over TCP 62 Other interesting TCP Ports 62 APPENDIX A MENU TREES 63 APPENDIX B OCTET LOCATIONS ON ETHERNET FRAMES 67 Octet Locations on a Bridged TCP IP Frame 67 Octet...

Страница 7: ...on 79 Console Pinouts 81 V 24 RS232C Link Pinouts 82 V 11 X 21 Link Pinouts 83 RS442 RS530 Link Pinouts 84 V 35 Link Pinouts 85 RS232 Null Modem Cable Configuration 86 V 35 Null Modem Cable Configurat...

Страница 8: ...Contents...

Страница 9: ...hat may operate at speeds up to 2 048 Mbps Frame Relay units provide bridging and IP IPX routing and support 1 to 128 Permanent Virtual Circuit PVC across two physical wide area links running RAW 1490...

Страница 10: ...ole under the front right corner of the faceplate is used in case a hardware reset is required The end of a paper clip is sufficient to toggle the small switch behind the hole Front View Bottom View R...

Страница 11: ...24 Link 1 module Link 2 module LAN Console module Power connector CSU DSU LINE 10 100 BT LAN MDI X MDI Figure 1 3 Rear View of the router with a single LAN connection and two WAN modules CONSOLE 10 10...

Страница 12: ...the communications equipment with the connector screws to prevent accidental disconnection The CSU DSU module uses a RJ 48S connector to interface with the digital data service G 703 modules use a sta...

Страница 13: ...es the minimum configuration parameters required when setting up the router Each of the configuration scenarios requires setting of operational parameters on the router The built in menu system of the...

Страница 14: ...in indicates that this is information that the user will have to enter for configuration The note icon is used to provide miscellaneous information on the configuration and set up of the router Config...

Страница 15: ...hing Telnet connections to a partner bridge router across the WAN This is accomplished by selecting the Telnet option Location Main Configuration Access Set up Telnet Set up Telnet Specify the name or...

Страница 16: ...g AMI INV_AMI B8ZS HDB3 Select the service channel speed framing format and encoding as designated by the service provider T1 service requires the specification of a Line Build Out factor This paramet...

Страница 17: ...ft TS220to330ft TS330to440ft TS440to550ft TS550to660ft If fractional T1 E1 service is being provided you will need to specify the channels timeslots to be used Set Link Interface Type Location Main Co...

Страница 18: ...nternational Remote Site Profile Frame Relay enabled International only Frame Relay disabled North America only The configuration options required for proper initial operation are described in Section...

Страница 19: ...is connected and NOT forwarding i e Listening Learning or Blocking Red Bridge Router is NOT connected to the LAN LAN Off Module is not installed or is configured to be down Disabled Green Connection i...

Страница 20: ...Applications 12...

Страница 21: ...ee When operating the router as a combination bridge router simply configure each of the components separately Note The configuration options described within this section are only for initial set up...

Страница 22: ...etwork address is the same at both locations bridging is simpler and requires less configuration If the locations are to be routed together the network numbers will have to be different in both cases...

Страница 23: ...ion The router are pre configured to operate as an Ethernet bridge compatible with the IEEE 802 1d Spanning Tree Protocol definitions This means that without configuration modifications the router wil...

Страница 24: ...ted there For WAN connections if the destination IP network is found in the routing tables the IP router sends the IP frame to the remote partner router that is connected to the appropriate remote IP...

Страница 25: ...ress there can be over 16 million 224 host devices on each class A network Class B uses the first two fields for network addresses and can address approximately 16 000 networks The two low order field...

Страница 26: ...work may be divided into smaller networks by a process called sub netting A subnet is specified using some of the high order bits of the host field of the IP address for sub network addressing The por...

Страница 27: ...55 192 So setting a subnet mask size of 26 will generate two sub networks with up to 62 host addresses each 64 potential addresses minus the all zero and all one addresses The new IP sub network addre...

Страница 28: ...rn the routes to other devices on the network through RIP messages In some instances it may be desirable to have a predetermined or static route that will always be used to reach certain devices such...

Страница 29: ...outers forward IPX frames based upon their IPX destination address and an internal routing table The router maintains the internal routing table with the network IPX addresses and the remote partner I...

Страница 30: ...on the remote site LAN In the following diagram the router connected to LAN 2 must be configured with IPX network number 1500 or any other valid unique IPX network number using the appropriate frame t...

Страница 31: ...e that IPX network numbers must be unique If more than one frame type is to be used each frame type must have a unique IPX network number There must be no duplicate IPX network numbers within your ent...

Страница 32: ...its routing and server tables Novell Server with Dual LANs If an ROUTER is configured with two LAN interface modules the setup will be similar to the above configuration the difference being that rath...

Страница 33: ...tion In a numbered link configuration the WAN connection may be viewed as another LAN network with the two PPP routers simply routing information between their local LANs and the common connected WAN...

Страница 34: ...PPP router that is the IP address of its LAN connection If the peer IP address is not specified the router will attempt to determine it when negotiating the IPCP connection When an IPXCP link is set...

Страница 35: ...y enable the Multilink Operation option of the remote site profile for that connection When a multilink connection is established the multilink MP options within the PPP set up and Advanced PPP set up...

Страница 36: ...tion to another ISDN router the ISDN information must be defined The ISDN switch type must be defined for the ISDN interface and the phone numbers must be defined Refer to the following diagram that s...

Страница 37: ...nt on each of the units Directory Numbers SPIDs Location Main Configuration WAN Set up Link Set up ISDN Set up Directory Number SPID The directory number will be the ISDN phone number used to establis...

Страница 38: ...ct call is established to a specifically configured remote router when certain IP traffic is received from the local LAN Note that any time the switch type is changed a soft reset must be performed be...

Страница 39: ...remote site router Once the connection is established and working properly the remote site configuration for that router should be entered into the router The remote site profile enables ISDN calls to...

Страница 40: ...remote site IPX PPP router and an ISDN call will be placed IP Router Manual Call Connection To establish an IP PPP direct dial connection the IP addresses must be supplied for this device before the I...

Страница 41: ...to other frame relay units Before the router can establish a PVC connection to another frame relay router at least one PVC must be defined The router is pre configured to query the frame relay service...

Страница 42: ...frame relay service to auto learn the LMI type and the PVC DLCI numbers This auto learn function allows the router to be plugged into the frame relay service and auto learn the PVC configuration to b...

Страница 43: ...lay service provider for the Frame Relay service When the LMI type is set to none the router simply creates frame relay packets and sends them on the defined PVC s The links are not checked for errors...

Страница 44: ...s the router will bridge and IPX route data without any user configuration Because an IP router requires an IP address the router must be configured with an IP address before IP routing is fully opera...

Страница 45: ...bled to disabled Frame Relay disable Location Main Configuration WAN Set up Link Set up Frame Relay disabled The router will request confirmation of the change enter yes Quick Start PPP Leased Line Co...

Страница 46: ...nnection Once the link speeds have been configured the router will attempt to establish the link connection to the remote site PPP router The Bridge connection does not require any configuration for o...

Страница 47: ...The ID numbers are assigned automatically in ascending order as the site profiles are created ID numbers 129 130 and 131 are templates for creating remote site profiles with ISDN Frame Relay or Lease...

Страница 48: ...me prompt receives the name Calgary it will look in the remote site list for a profile with the alias Calgary If the Calgary profile is found the parameters in it will be used for password authenticat...

Страница 49: ...time the router starts up Location Main Configuration WAN Set up Remote Site Set up Edit Remote Site Connection Set up Auto call Enabled 1 d Setting up an activation schedule with times the connection...

Страница 50: ...te site profiles may be renamed for easier identification or usage by changing the Remote Site Alias Remote Site Profile Alias Location Main Configuration WAN Set up Remote Site Set up Edit Remote Sit...

Страница 51: ...emote site profiles are fully configured the CIR and EIR The Committed Information Rate CIR option specifies the data rate that the Frame Relay service has guaranteed to provide The Excess Information...

Страница 52: ...P Parameters menus note compression over frame relay is only available if PPP encapsulation is enabled If either the Bridge portion or the IP or IPX router portion of the connection is not required th...

Страница 53: ...l be used for PPP negotiations after the security authentication process has passed In other words when this router receives a link connection attempt it will prompt the remote device for a user name...

Страница 54: ...m any remote site profile that originally was defined to use the link The link will then be used within the newly defined remote site profile When this remote site profile is defined to use Multilink...

Страница 55: ...a recovery schedule with times the connection is to be activated and deactivated Activation Schedule Location Main Configuration WAN Set up Remote Site Set up Edit Remote Site Connection Set up Activa...

Страница 56: ...dress Pool Location Main Configuration Applications Set up DHCP Set up Server IP address pool IP address pool IP Address number of addresses The IP address pool option requires setting the first IP ad...

Страница 57: ...r Figure 2 10 Local External DNS Server Configuration The configuration options described here are only for initial set up and configuration purposes For more complete information on all of the config...

Страница 58: ...e Internet via the router using a single global IP address A global IP address must be assigned to the WAN link upon which NAPT is enabled for port translation to work The global IP address will be as...

Страница 59: ...Internet Service Provider Private Network Addresses Global IP Address 199 87 65 43 NAPT mapping 1 1 1 2 199 87 65 43 25 1 1 1 3 199 87 65 43 23 1 1 1 4 199 87 65 43 80 e mail server 1 1 1 2 telnet ser...

Страница 60: ...so set when the router is placed in TFTP Network load mode for upgrading the operating software via TFTP transfers Care should be taken when upgrading a group of routers that have security levels set...

Страница 61: ...at this router expects to receive from the remote partner in response to authentication requests For a pair of partner routers with security enabled the outgoing user name in the security parameters e...

Страница 62: ...ess trusted sources such as the Internet or dial up ISDN links The following diagram shows a corporate head office network which is connected to the Internet with an router There is also a branch offi...

Страница 63: ...rate network FTP WWW Designated Servers Location Main Configuration Applications Set up Firewall Set up WAN Firewall Set up ID 1 for ISP remote site Designated Servers FTP Server 195 100 1 12 WWW HTTP...

Страница 64: ...ress 195 100 2 0 Source Mask 255 255 255 0 Protocol Type TCP Entry Direction outbound Finally holes are provided in the LAN firewall to allow Internet access to the FTP and WWW servers Firewall Locati...

Страница 65: ...ovides a very powerful means of controlling traffic flow to and from a network Compression Compressing data allows data throughput rate considerably greater than the physical line rate The actual rate...

Страница 66: ...secondary is activated or below threshold before it is brought down This prevents activation or deactivation of the secondary link due to momentary peaks or drops in traffic Bandwidth Allocation Contr...

Страница 67: ...ged frames IP routed frames and IPX routed frames For more information on filtering please refer to the Programmable Filtering section of the router Reference Manual located on the accompanying CD ROM...

Страница 68: ...on on octet locations in data frames The pattern match value is defined as a HEX string that is used to match against the data frame If the HEX data at the appropriate offset location in the data fram...

Страница 69: ...ket information starting at the 14th octet equals 24 or 32 and the information at the 12th octet equals 80 the filter pattern will match Popular Filters Shown here are some of the more commonly used p...

Страница 70: ...the defined IP router pattern filters IP routed frames are unaffected by the bridge pattern filters and the IPX router pattern filters NetBIOS over TCP NetBIOS over TCP NETBIOS Name Service 22 0089 NE...

Страница 71: ...n each of the menu trees is explained in the accompanying router Menus Manual located on the accompanying CD ROM Menu names are displayed in boxes The numbers on the left side of the boxes indicate th...

Страница 72: ...s 3 4 2 Bridge enabled 3 Tinygram 4 FCS preservation Bridge Parameters 1 1 STP parameters menu 1 State 2 Path cost 3 Priority 1 Callback timer 2 Redial timer 3 Redial count STP Parameters 1 1 Routing...

Страница 73: ...g Table 5 Show Permanent Table 6 Clear Bridging Table 1 Edit MAC Address Filter 1 Status 2 Location 3 Filter If Source 4 Filter If Destination 5 Permanent 6 Remove Edit MAC Address Filter 1 1 3 2 4 8...

Страница 74: ......

Страница 75: ...ns Note the differences in the TCP IP and Novell frames when bridging and when routing When routing the TCP IP and Novell frames are examined after the Level 2 Ethernet portion of the frame has been s...

Страница 76: ...6 ARP 0807 XNS Compatibility 6001 DEC MOP Dump Load 6002 DEC MOP Remote Console 6003 DEC DECNET Phase IV Route 6004 DEC LAT 6005 DEC Diagnostic Protocol 6006 DEC Customer Protocol 6007 DEC LAVC SCA 80...

Страница 77: ...Configuration Pages 69 Octet Locations on an IP Routed TCP IP Frame Octet Locations on an IPX Routed Novell Netware Frame...

Страница 78: ...Octet Locations 70 Octet Locations on a Bridged XNS Frame...

Страница 79: ...er cabling 2 Turn the bridge router over and place it on a flat cushioned surface 3 Remove the six Phillips head screws that fasten the case together 4 across the front and 1 on each rear side 4 Hold...

Страница 80: ...are shown in the following illustration Link 2 Interface Module ISDN BRI DSU G 703 RS232 V 35 RS422 or V 11 Primary LAN Console Interface Module Link 1 LAN 2 or Module ISDN BRI DSU G 703 RS232 V 35 RS...

Страница 81: ...change the password as desired Changing LAN or WAN Interfaces 1 Remove power from the bridge router 2 Remove the screw securing the interface module to the rear of the bridge router 3 Remove the inte...

Страница 82: ...this device CONSOLE Slot1 Slot 2 LAN Console module Remove these screws to remove the modules LINE ISDN U 10 100 BT LAN MDI X MDI Figure C 2 Rear View with the ISDN U Module Installed Processor setti...

Страница 83: ...hain connection to the ISDN circuit by using the ISDN AUX connector Figure C 5 ISDN S T Module Termination setting jumpers Connecting to the ISDN U Link Module The connection to the central office is...

Страница 84: ...y using the newly upgraded software In some upgrade situations the Directory Numbers and SPIDs may be corrupted after the upgrade and will need to be re entered The router may take up to two 2 minutes...

Страница 85: ...ablished only if autocall is enabled on router B The TFTP transfer of the upgrade code may now be performed from the PC to Router C Once Router C has completed programming the flash and has restarted...

Страница 86: ...Servicing Information 78...

Страница 87: ...ck to the transmit clock pins on the DCE interface This clock is then received by the router link interface By using this method the router may be in control of the link speed The link speed may also...

Страница 88: ...ch 1 is down on the normal position the module receives clock signals from the connected network When switch 1 is up up the module will generate clocks When a pair of routers are connected back to bac...

Страница 89: ...X 6 107 CC Data Set Ready X 7 102 AB Signal Ground NA 8 109 CF Received Line Signal Detector CD X 20 108 2 CD Data Terminal Ready X 22 125 CE Ring Indicator X Figure D 3 Console Pinouts The connectin...

Страница 90: ...Set Ready X 7 102 AB Signal Ground NA 8 109 CF Received Line Signal Detector CD X 9 10 11 12 13 14 15 114 DB Transmit Signal Element Timing DCE Source X 16 17 115 DD Receive Signal Element Timing DCE...

Страница 91: ...7 8 Ground Signal Ground NA 9 T B Transmitted Data B X 10 C B Control B X 11 R B Received Data B X 12 I B Indication B X 13 S B Signal Element Timing B X 14 15 Figure D 6 V 11 x 21 Link Pinouts The co...

Страница 92: ...Received Line Signal Detector X 11 DA B Transmit Signal Element Timing DTE Source X 12 DB B Transmit Signal Element Timing DCE Source X 13 CB B Clear to Send X 14 BA B Transmitted Data X 15 DB A Trans...

Страница 93: ...Element Timing B X 17 18 U Transmitter Signal Element Timing A DTE X 19 W Transmitter Signal Element Timing B DTE X 20 H Data Terminal Ready X 21 Local Loopback X 22 J Calling Indicator X 23 Y Transmi...

Страница 94: ...nector on each unit The link speed must be defined for each of the two units Shield Signal Ground DB25 MALE 1 20 7 8 15 17 24 DB25 MALE 1 8 7 20 24 17 15 Signal Ground Shield Transmitted Data Received...

Страница 95: ...Transmitted Data B Received Data B Receiver Signal Element Timing A Receiver Signal Element Timing B Transmitter Signal Element Timing B Transmitter Signal Element Timing A Transmitter Signal Element...

Страница 96: ...ta A Transmitted Data B Received Data B DCE Ready A DCE Ready B Clear To Send B Request To Send A Request To Send B Received Line Signal Detector A Received Line Signal Detector B DTE Ready A DTE Read...

Страница 97: ...Timing DTE Source A Data Set Ready B Transmit Signal Element Timing DTE Source B Request to Send A Signal Ground Request to Send B Shield Clear to Send A Clear to Send B DB25 MALE 2 20 14 23 3 17 16...

Страница 98: ...cessary to connect two units back to back and a set of modems is not available Note that this cable specifies DB15 connectors on each end to allow direct connection to the link interface connector on...

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