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Related Manuals for Tahoe 1701
Summary of Contents for Tahoe 1701
- Page 1 ANUAL G.703 / Ethernet Routers series TAHOE 1700 FREEDOM OF COMMUNICATION...
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Page 3: Table Of Contents
TABLE OF CONTENTS 1. Introduction ................ 1 2. Interfaces ................2 3. Configuration and management ........5 4. Technical data ..............23 5. Declaration of Conformity ..........25... -
Page 4: User Manual
Other trademarks of other companies are used only for explanation and to the owner's benefit, without intent to infringe. ® Tahoe assumes no responsibility for any errors or omissions that may appear in ® this document. Tahoe makes no commitment to update the information... -
Page 5: Introduction
Single Ethernet port is also available ® Tahoe 1748 router is the most expanded model of all four - has a framed G.703 interface and a built-in managed 8-port VLAN- enabled switch Routers are destined for use with HDLC or synchronous PPP point- to-point connections and Frame Relay networks. - Page 6 The system firmware is stored in the Flash memory - it is possible to update it using the TFTP protocol. The configuration is stored in the EEPROM memory.
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Page 7: Interfaces
The Ethernet interface is used to connect the router to the Local ® ® Area Network. In case of Tahoe 1701 and Tahoe 1741 routers it is a single RJ-45 connector with four LEDs: LNK - LAN Link, signals a proper connection to the LAN... - Page 8 other device, flashes while transmitting or receiving data DUPLEX/COLLISION - when lit signals a full-duplex connection, flashes when a collision occurs in a half-duplex connection The switch can be managed through a telnet or console connection. It supports VLAN tagging and automatically detects a crossed-over cable (so-called MDIX function).
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Page 9: Configuration And Management
IP address is possible from anywhere in the network. After connecting a password prompt will appear: User Access Verification Password: The default password is “Tahoe” (case sensitive). If the password entered is correct, a command prompt will appear: Tahoe> 3.2. Serial console If the telnet connection is not possible (e.g. - Page 10 (the IP address to be deleted should be typed instead of “10.0.0.2” ). A static ARP entry may be added using “arp add”: Tahoe> arp add 10.0.0.3 00:50:13:E9:5C:01 The dynamic hardware address resolution may be disabled using the “ifconfig” command. If it is disabled, only those stations may connect to the router, whose IP and MAC addresses are entered into the ARP table using the “arp add”...
- Page 11 transparent - completely transparent bridge, inaccessible under its IP address - this mode may be disabled only through the serial console Entering “bridge list” displays a list of MAC addresses with the name of the interface on which certain address was heard. Note: To make bridging work properly interfaces used in the process have to be indicated.
- Page 12 Relay Agent listens for such requests and forwards them to a DHCP server, which may be placed anywhere in the network. 3.3.7.1. Review of the settings Entering “dhcp” alone displays current server settings. Here is an example: Tahoe> dhcp DHCP/BOOTP server default-lease-time 43200 max-lease-time 86400 network "lan" (eth0):...
- Page 13 3.3.7.2. Basic DHCP server configuration rules Before starting using DHCP server please read following guidelines: the configuration is organized in a hierarchical manner - the most general group of settings is “network” - the physical network connected to the router. Any number of IP “subnets” may exist within a network.
- Page 14 - domain-name - domain name - domain-name-servers - DNS addresses - filename - name of the file containing the operating system - next-server - server from which the mentioned above file will be downloaded using TFTP dhcp add option domain-name tahoe-group.com...
- Page 15 dhcp add relay <address> [<port>] Adds a DHCP server address to which the DHCP requests are forwarded, when the Relay Agent mode is enabled. The <port> parameter is optional - its default value is 67: dhcp add relay 192.168.0.3 3.3.7.5. dhcp del The command deletes a network, subnet, address range, etc.
- Page 16 (instead of „network”, a „subnet” or „host” may be given; options are described in 4.3.7.4), e.g. : dhcp network add domain-name tahoe-group.com Options are valid only for a given network, subnet or host. Moreover two other parameters can be set: dhcp network default-lease-time <value>...
- Page 17 "long" mode it is 2000m. g703 { on | off } - switches the G.703 port on and off The Tahoe 1741 and Tahoe 1748 routers have framed G.703 ports, which may be configured using following commands: g703 crc4 { on | off } - switches the CRC4 transmission and checking on and off g703 slots <comma separated list of timeslots or timeslot...
- Page 18 Moreover the access to the server may be limited by typing: http host <IP address> Then the server is only reachable from the given IP address. To remove the limitation a 0.0.0.0 address should be entered. 3.3.12. ifconfig The command allows configuring the network interfaces. Following interfaces are available: eth0 - Ethernet interface eth0:0, eth0:1, etc.
- Page 19 3.3.13. ipchains The command is used to control the firewall and the network address translation (NAT, called also “masquerade” - that is giving a network an access to the Internet using only one real IP address). ipchains add - adds an entry at the end of the list ipchains insert - adds an entry at the beginning of the list ipchains del...
- Page 20 Note: The router always chooses the first matching rule from the list. So if the more general rule comes first, and the more specific is later, then the first one will be applied and the last one - ignored. Thus the specific rule has to be inserted before the general one, as in following example: ipchains add -s 215.16.11.0/24 deny ipchains insert -s 215.16.11.5 accept...
- Page 21 in case of connection inactivity and the amount of remaining free table entries that may be used for new connections. Both ports and IP addresses are printed as hexadecimal numbers. 3.3.16. mem “Mem” shows the memory usage statistics. The “free” entry is the most important - it shows how much free memory is left.
- Page 22 <port> debug off- enables and disables, respectively, the syslog debugging of the PPP link 3.3.20. prompt The default "Tahoe>" prompt may be changed to help identifying the router. Enter "prompt <new prompt>" to change the default. 3.3.21. ps Show the processes list.
- Page 23 - removes default route 3.3.24. snmp The “snmp” command is used to configure the SNMP (Simple Network Management Protocol) support. It has following syntax: snmp - shows current settings: Tahoe> snmp SNMP on Read community: public Write community: private SNMP host1: <any>...
- Page 24 MAC address than in the router’s ARP table, it will send an answer with the correct MAC address. ® Such request is sent by the PCs working under the Microsoft Windows™ operating system during the boot-up. If the ARP reply from the router comes, the PC will show a message that this address is occupied, which will make an illegal use of that IP address impossible.
- Page 25 3.3.29. timeout The command sets the inactivity time (in seconds), after which the telnet connection is closed. It has following syntax: timeout <during the session> [<during logging in>] The first parameter is used after the logging in and the second one (optional) during the log-in.
- Page 26 3.3.33. watchdog The “watchdog” command gives additional control over the router’s unpredicted behavior (i.e. a misconfiguration disabling further communication with the router). The router uses the “ping” command to check the availability of certain IP addresses and reboots, if one of them doesn’t answer.
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Page 27: Technical Data
50m / 2000 m throughput: 64 - 2048 kbps Ethernet interface: ® ® Tahoe 1701 and Tahoe 1741: 10BaseT, RJ45 connector ® ® Tahoe 1708 and Tahoe 1748: 10/100BaseT, 8 x RJ45 serial console: RS-232, 9600 bps, 8N1, DB9/M connector... -
Page 29: Declaration Of Conformity
Declaration of Conformity TAHOE Piotr Kaczmarzyk ul. Uniwersytecka 1 50-951 Wroclaw, Poland We declare that the products Tahoe 1701, Tahoe 1708, Tahoe 1741 and Tahoe 1748 routers comply with the regulations of the following European Directives: 73/23/EEC low voltage safety requirements... - Page 30 Other trademarks of other companies are used only for explanation and to the owner's benefit, without intent to infringe. ® Tahoe assumes no responsibility for any errors or omissions that may appear in ® this document. Tahoe makes no commitment to update the information...
- Page 32 TAHOE ® Uniwersytecka 1 50951 Wroc³aw, Poland phone +48 50 100 7362 fax +48 71 344 2642 http://www.tahoe-group.com/...
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