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19

You will see the login screen for the Remote Office router. To
connect from the Remote Office router to the Head Office
router, on the Remote Office router use the command:

TELNET 172.16.8.33

Note: We have used the Ethernet address in this example but you
can Telnet to any of the remote router’s assigned IP addresses.

Save the Configuration

Save the new dynamic configuration as a script, by entering
the command:

CREATE CONFIG=IPCONF.SCP

TROUBLESHOOTING IP CONFIGURATIONS

No Route Exists to the Remote Router

1

   Wait for at least one minute to ensure that a RIP update has

been received.

2

   Repeat steps 4 and 5 above. Check that the PPP link is

OPENED for both LCP and IP by entering the command:

SHOW PPP

The display should look like that shown below.

3

   Try restarting the IP routing software (a warm restart), by

entering the command:

RESET IP

If the route still does not appear, contact your distributor or
reseller for assistance.

Telnet Fails

1

   If Telnet to a router fails, check that the IP address you used

matches the one assigned to the router. Check that RIP is
configured correctly (steps 4 and 5 above). Check that the IP
Telnet server is enabled on each router, using the command:

SHOW IP

If the Telnet server is disabled, enable the Telnet server with
the command:

ENABLE IP TELNETSERVER

2

   If Telnet into a host on the remote LAN fails, but works into

the remote router, check the IP address you are using is correct.
Check that both routers are gateways, not servers by typing:

SHOW IP

The “IP Packet Forwarding” field in the output should be set to
“Enabled”. The  host’s TCP/IP software should be configured to
use the Head Office router as its gateway. Refer to the
documentation for the host TCP/IP software for more
information about configuring a gateway.

3

   Contact your distributor or reseller for assistance.

Example output from the SHOW IP

ROUTE command for a basic TCP/IP

network.

Example output from the SHOW PPP

command for a basic TCP/IP network.

IP Routes

-------------------------------------------------------------------------------

Destination       Mask              Nexthop             Interface           Age

DLCI/Circ.        Type     Policy   Protocol            Metric       Preference

-------------------------------------------------------------------------------

172.16.8.0        255.255.255.0     0.0.0.0             eth0               1382

-                 direct   0        interface           1                     0

172.16.31.16      255.255.255.240   172.16.254.2        ppp0                 71

-                 remote   0        static              2                   100

172.16.254.0      255.255.255.0     0.0.0.0             ppp0               1382

-                 direct   0        interface           1                     0

-------------------------------------------------------------------------------

Name            Enabled  ifIndex  Over                  CP           State

-----------------------------------------------------------------------------

ppp0              YES      04                           IPCP         OPENED

                                  isdn-roho             LCP          OPENED

-----------------------------------------------------------------------------

Содержание AR720

Страница 1: ...Simply connecting the world AR720 ROUTER QUICK START GUIDE Software Release 2 3 1...

Страница 2: ...written notice The information provided herein is subject to change without notice In no event shall AlliedTelesyn be liable for any incidental special indirect or consequential damages whatsoever inc...

Страница 3: ...to a Basic Rate S T ISDN Service 9 Connecting to a Basic Rate U ISDN Service 9 Connecting to a Primary Rate ISDN Service 10 Connecting a Terminal or Modem 10 Documentation andTools CD ROM 12 Using th...

Страница 4: ...etwork Many small offices and home offices require fast and efficient access to a central office to check email access a database or download a file The AR720 supportsWindows Novell and Apple Macintos...

Страница 5: ...etworking via Frame Relay Point to Point Protocol and X 25 Basic Rate and Primary Rate access to Integrated Services Digital Network ISDN services with dial on demand bandwidth on demand and channel a...

Страница 6: ...for the PC but the most readily available are the Terminal and HyperTerminal applications included in Microsoft Windows 3 1 and Windows 95 respectively In a normal Windows installation Terminal is lo...

Страница 7: ...yperTerminal group Double click the Hypertrm exe icon 2 In the Connection Description dialog box enter a name for the connection e g AR720 and select an icon from the scrolling list Click OK 3 In the...

Страница 8: ...Ethernet LAN via an AUI interface use a transceiver ETHERNET PORTS FD LNK RX C R 100 COL 0 1 TX Connect the LAN to the Ethernet port on the rear panel of the AR720 using the supplied CAT 5 cable Data...

Страница 9: ...d is shipped with the standard 100 termination jumpers removed This is appropriate for most situations where the local building wiring provides the ISDN termination Your distributor or reseller can ad...

Страница 10: ...to the PRI interface on the rear panel of the AT AR020 PRI E1 T1 PIC If the router is being connected to a 75 network an external balun is required Contact your distributor reseller or ISDN service p...

Страница 11: ...of how to change the communications settings for the terminal or modem If the terminal or modem is to be used with communications settings other than the default settings the asynchronous port must be...

Страница 12: ...ortcuts and commands from the Document menu to page through the document Click on a bookmark thumbnail or hypertext link to jump to a specific section or topic Use the Search command to search for key...

Страница 13: ...command SET Q931 0 SPID1 spid SPID2 spid This section describes how to configure ISDN on the AR720 router using the command line interface ISDN on the router requires minimal user configuration other...

Страница 14: ...AL SEARCHSUB LOCAL NUMBER 9876543 PREC OUT Each call has the same name ROHO and this name is passed via the called subaddress IE to provide identification to the remote end of the link Each router wil...

Страница 15: ...initiate the call but calls from the Remote Office have precedence On the Head Office router create a call to the Remote Office router ADD ISDN CALL ROHO OUTSUB LOCAL SEARCHSUB LOCAL NUMBER 1234567 PR...

Страница 16: ...and any routing protocols such as IP and IPX that are configured to use PPP interface 0 will automatically inherit the dial on demand functionality CONFIGURING ISDN BANDWIDTH ON DEMAND A PPP interface...

Страница 17: ...er Remote Office Router eth0 Ethernet interface eth0 172 16 8 33 Ethernet interface IP address 192 168 31 30 172 16 8 0 Ethernet LAN IP subnet address 192 168 31 16 255 255 255 0 Ethernet LAN IP subne...

Страница 18: ...rs can exchange information about routes to all of the IP devices hosts PCs file servers etc on the internet However on a dial on demand ISDN connection this may result in excessive call charges So fo...

Страница 19: ...uter Check that RIP is configured correctly steps 4 and 5 above Check that the IP Telnet server is enabled on each router using the command SHOW IP If the Telnet server is disabled enable the Telnet s...

Страница 20: ...required to configure a pair of AR720 routers to create a Novell IPX internetwork using the router s command line interface In this scenario PCs at a remote office need access to a Novell file server...

Страница 21: ...network in a Novell internet including all LANs and WAN links must be assigned a network number Novell file servers also have an internal network number These network numbers must be unique across th...

Страница 22: ...can be caused by a number of different events The following give some of the most common 1 Check that when the workstation is moved to the same LAN as the file server it is able to access the server...

Страница 23: ...2 INT PPP0 NETW 129 DEMAND ON SET IPX CIRC 2 RIPCHANGE YES SAPCHANGE YES 3 Repeat this procedure on the Remote Office router defining one IPX circuit for the Ethernet interface and one for the wide ar...

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