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22

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.

The command has following syntax:

¡

watchdog on

- enables the watchdog

¡

watchdog off

- disables the watchdog

¡

watchdog <interval> <amount> <wait> <IP address>
[<additional IP address> ]

- configures the watchdog. After

<interval>

seconds the router sends

<amount>

of pings to

the

<IP address>

(and the

<additional IP address>

if set)

waiting

<wait>

seconds after each of them. If there is no answer

for any of the pings sent to the first address or for any of the pings
sent to the second address, then the router is rebooted.

3.3.34.

write

Saves the current configuration to the EEPROM and displays an

information about the EEPROM usage. If the configuration is to large to
be stored some settings should be deleted, like static ARP entries, DHCP
options, etc.

23

4.

Technical data

¡

processor:

Motorola MC68302

¡

network protocols:

IP, TCP, UDP, ICMP, TFTP, SNMP, DHCP, BOOTP,

®

RFC-1490, PPP, Frame Relay, Cisco HDLC,
IEEE 802.1q

¡

Frame Relay signaling:

®

ANSI T1.617 Annex A, ITU Q.933 Annex D, Cisco LMI

¡

G.703 interface:

®

®

Tahoe 1701 and Tahoe 1708:

unframed
coding:

AMI, HDB3

receiver sensitivity:

-12 dB / -43 dB

range:

50m / 2000 m

throughput:

2048 kbps

®

®

Tahoe 1741 and Tahoe 1748:

framed according to G.704 or unframed
coding:

AMI, HDB3

signaling:

FAS, CCS, CRC4

receiver sensitivity:

-12 dB / -43 dB

range:

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

¡

dimensions:

229 mm (width) x 57 mm (height) x 152 mm (length)

¡

power supply:

®

®

Tahoe 1701 and Tahoe 1741:

7.5V, 400 mA

®

®

Tahoe 1708 and Tahoe 1748:

7.5V, 1.2A

external power supply included

¡

environmental conditions:

storage:

temperature

-20°C to 65°C

humidity

5 to 95%

operation:

temperature

0°C to 40°C

humidity

0 to 85%

4

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Содержание 1701

Страница 1: ...G 703 Ethernet Routers series TAHOE 1700 FREEDOM OF COMMUNICATION USER MANUAL ...

Страница 2: ......

Страница 3: ...i TABLE OF CONTENTS 1 Introduction 1 2 Interfaces 2 3 Configuration and management 5 4 Technical data 23 5 Declaration of Conformity 25 ...

Страница 4: ...rved 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 contained here and may make changes at any time without notice ...

Страница 5: ... console Traffic statistics are available through WWW Router status messages can be sent to a central server using syslog protocol One network interface may support more than one IP subnetwork thanks to interface aliases eth0 0 eth0 1 etc and VLAN interfaces eth0 1 eth0 2 etc Router may also work as a bridge in this mode both interconnected networks create one whole on the hardware level e g compu...

Страница 6: ...2 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 ...

Страница 7: ...or with four LEDs LNK LAN Link signals a proper connection to the LAN COL Collision signals an attempt to transmit to the LAN while another device also sends data LRX LAN Receive flashes when data is received from the LAN LTX LAN Transmit flashes when data is transmitted to the LAN A router should be connected to an Ethernet switch or a hub using a straight patch cord or to a PC another router or ...

Страница 8: ...ct it to a PC Three lines bolded are sufficient Terminal settings are 9600 bps 8 data bits 1 stop bit no parity no handshaking After connecting the console to the PC and running a terminal software user has the same access to the router functions as through a telnet connection see chapter 3 Pin Name 1 DCD 2 3 4 5 6 RXD TXD DTR GND DSR Description carrier detect transmission readiness signaling dat...

Страница 9: ...ser 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 there s no telnet client available or the router s IP address is unknown the router may be connected to the PC s serial port using a null modem cable After starting a terminal software e g...

Страница 10: ...lution 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 command This way an unauthorized network access may be prohibited 3 3 3 bridge The bridge command enables or disables the bridge mode in which two interconnected LANs create one whole in the hardware layer The ...

Страница 11: ...ry defaults Until the reboot it will continue to run with its current settings which can be saved again using write command 3 3 5 config The config command displays current configuration The command output may be entered on another router to make an exact copy of the configuration 3 3 6 console This command is used to enable or disable password the protection of the serial console By default the c...

Страница 12: ...OTP requests and replies between separate networks The DHCP and BOOTP protocols work only within one physical subnet The station using such protocols doesn t know its IP address yet so its packets cannot be routed to other networks 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 ...

Страница 13: ...copied it may be modified or deleted later on the beginning a network for each interface should be created in each of the networks an IP subnet should be created according to IP subnets connected to that interface router may not have the routing set up to each of them it s enough that they are in the same physical network now IP ranges and static IP entries may be added 3 3 7 3 dhcp on off relay D...

Страница 14: ...red subnets Only this IP address will be assigned to the given MAC address dhcp add host server 00 50 13 2e 15 ca 10 0 0 5 dhcp add range start address end address Adds an IP address range from which addresses will be assigned to the network stations The address range must be contained inside one of the subnets dhcp add range 10 0 0 5 10 0 0 37 dhcp add option option value Adds a global DHCP optio...

Страница 15: ...address Deletes a DHCP server address used in the Relay Agent mode dhcp del range start address end address Deletes an IP address range assigned to the network stations dhcp del option name value Deletes a global option Besides the option name its value should also be given because some options may have more than one value e g domain name servers routers etc 3 3 7 6 dhcp rename The command changes...

Страница 16: ...n IP address when a station is switched off without releasing that address dhcp network max lease time value A station may request other lease time the negotiated time may not be higher than this setting 3 3 7 8 dhcp default lease time value dhcp max lease time value These commands are similar to those described in the previous paragraph but their meaning is global 3 3 8 exit quit The command clos...

Страница 17: ...lue sets the value sent in unused timeslots g703 short long selects the sensivity of the G 703 receiver In the short mode the transceiver s range is 50m and in 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...

Страница 18: ...P interface used when the G 703 link works in the PPP mode hdlc0 HDLC interface used when the G 703 link works in the Cisco HDLC mode This command has similar syntax as the Linux ifconfig ifconfig interface name IP address netmask network mask bcast broadcast address static dynamic bridge on off The ifconfig alone displays information about the active interfaces Entering ifconfig interface name sh...

Страница 19: ...eter is omitted then the entry concerns all source addresses d destination subnet netmask port range Defines the destination addresses which this entry concerns If this parameter is omitted then the entry concerns all destination addresses p protocol optional Optionally the application of this rule may be limited to a certain protocol y optional The rule may be applied to the TCP SYN packets only ...

Страница 20: ...68 0 0 16 subnet other addresses are passed unchanged 3 3 14 lang Selects the language used to display messages during the telnet or console connection and on the LCD lang 0 Polish lang 1 English 3 3 15 masq The masq command displays a list of masqueraded connections The list consists of source and destination addresses the port assigned by the router the time remaining to the removal of an entry ...

Страница 21: ... ppp command sets up the PPP parameters when the G 703 link works in the synchronous PPP mode Following options are available the port parameter should be set to ppp0 ppp port defroute on ppp port defroute off the command enables and disables respectively adding of the default route through the PPP interface after the connection is established ppp port mtu value sets the maximum packet size that t...

Страница 22: ... identifying the router Enter prompt new prompt to change the default 3 3 21 ps Show the processes list 3 3 22 reboot Reboots the router All unsaved changes to the configuration will be lost 3 3 23 route The route command is similar to analogous Linux command It is used to configure the IP routing The route alone shows the current routing table It may be modified using following commands route add...

Страница 23: ...p off disables SNMP support snmp rdcomm text sets the read community the password used to read the SNMP parameters snmp wrcomm text sets the write community the password used to write the SNMP parameters snmp host1 address snmp host2 address snmp host3 address allows setting of up to 3 addresses from which the SNMP access will be permited Entering 0 0 0 0 allows access from any address while 255 2...

Страница 24: ...les logging syslog off disables logging syslog host IP address sets the IP address to which the messages will be sent 3 3 27 telnet The command allows limiting the telnet access to the router The access may be enabled or disabled by entering telnet on or telnet off respectively Moreover the access may be limited to a certain IP address telnet host IP address If the IP address is set as 0 0 0 0 the...

Страница 25: ...outer The router may work in two different modes single user only the password is necessary to access the router The user that logs in has the full access to the device multiple users allows creating many users with different names passwords and access levels The user command has following syntax user list shows the user list user add name adds a new user user del name removes an user user passwd ...

Страница 26: ...og interval amount wait IP address additional IP address configures the watchdog After interval seconds the router sends amount of pings to the IP address and the additional IP address if set waiting wait seconds after each of them If there is no answer for any of the pings sent to the first address or for any of the pings sent to the second address then the router is rebooted 3 3 34 write Saves t...

Страница 27: ... to G 704 or unframed coding AMI HDB3 signaling FAS CCS CRC4 receiver sensitivity 12 dB 43 dB range 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 dimensions 229 mm width x 57 mm height x 152 mm length power supply Tahoe 1701 and Tahoe 1741 7 5V ...

Страница 28: ...24 ...

Страница 29: ...quirements 89 336 EEC EMC requirements 99 5 EEC radio telecommunication terminal equipment requirements The compliance of Tahoe 1701 Tahoe 1708 Tahoe 1741 and Tahoe 1748 routers with the requirements of the above mentioned directives is ensured by complete application of the following harmonized European Standards EN 60950 2000 EN 55022 1998 EN 61000 6 1 2002 EN 61000 6 3 2002 Signed Piotr Kaczmar...

Страница 30: ...nly 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 contained here and may make changes at any time without notice ...

Страница 31: ......

Страница 32: ... TAHOE Uniwersytecka 1 50951 Wroc aw Poland phone 48 50 100 7362 fax 48 71 344 2642 http www tahoe group com ...

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