Question about Cisco (1841) Router (cisco1841)

3 Answers

Cisco router 1841 connected to serial interface

Need Help
cisco 1841 router with serial port connected to v.35 adtran exprees 6540 terminal with 2 mb lease line.

lease line ip
isp WAN Interface Address: 202.146.80.45/30 (255.255.255.252)
Customer WAN Interface Address: 202.146.80.46/30 (255.255.255.252

IP Address Block Allocation
Customer Own IP Address Block/CIDR/Mask: 58.71.152.128/28 (255.255.255.240)
DNS Server
Primary : 58.71.132.10
Secondary : 58.71.136.10

i setup the serial connection with customer ip and subnet

the link is up on serial connection. but when i run the test connection it cant ping the dns,
error isp ip adress and dns not correct.
the encapsulation : Hdlc

Have spent about 2 long days but no luck,
do I need to setup the routing and nat

Any help from you guys are much appreciated

Thanks

Posted by on

  • hydac Jul 29, 2008

    Thank you for your prompt reply,sir
    These values were given to me by the isp
    on the serial connection what wan ip do i use the isp wan ip or the customer wan ip.
    thank again for you help appreciate it
    p/s do you think the isp made a mistake

  • Jordan Mkt Dec 28, 2016

    Cisco router tech support phone number at 1877-778-8@9@6@9 in USA and Canada. Our technician’s organizations are additionally splendid and suitable that gives us best service and helps you want. Click Here For Tech Support:https://goo.gl/T2bgVy

×

3 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 248 Answers

You can get more detailed support through this link

http://www.cisco.com/en/US/products/ps5875/

thanks!

Posted on Jul 29, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Master:

    An expert who has achieved Level 3.

  • Master
  • 382 Answers

Hello,
Theres no need to setup for the nat but please check the wan interface and subnet mask ip it has to something else and not 255.255.255.252..Try 255.255.255.240 it must work...

Posted on Jul 29, 2008

  • Natesan Sabesan
    Natesan Sabesan Jul 29, 2008

    Yeah probably the mistake is in the connection set up ,So you need not set up routing and nat..If possible please Get all the address From your ISP..That will surely solve your problem...Thank you!!...


    Regards!!!...


×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 19,396 Answers

Make sure you set up correctly the subnet mask.

Posted on Jul 29, 2008

  • 4 more comments 
  • Ginko
    Ginko Jul 29, 2008

    255.255.255.252 subnet mask, is it correct? weird you are using only two last bits on your network ip range, try 255.255.255.0

  • Ginko
    Ginko Jul 29, 2008

    Try also calling your ISP technical help line and go through settings, they can also check online if there is anything wrong on their side of the fence, what is your ISP by the way?

  • Ginko
    Ginko Jul 29, 2008

    The value is not necessarily wrong, but 255.255.255.252 is 11111100 , that means you have only 2 bits available to define IPs, with that mask IPs will range from 0 to 4.
    Did you already call your ISP tech help phone to verify settings?
    We can find out more if you provide info on your ISP and your location.


  • Ginko
    Ginko Jul 29, 2008

    More, if you get "error isp ip adress and dns not correct", then also dns are not correct.
    If you need to set up serial connection you should use the IP needed to conect with router via serial connection, then I assume you use host IP.
    Ift will be easier if you provide required details, also mention if you have more than one router



  • Ginko
    Ginko Jul 29, 2008

    You configure serial connection if you have






    Normal
    0


    false
    false
    false








    MicrosoftInternetExplorer4









    /* Style Definitions */
    table.MsoNormalTable
    {mso-style-name:"Table Normal";
    mso-tstyle-rowband-size:0;
    mso-tstyle-colband-size:0;
    mso-style-noshow:yes;
    mso-style-parent:"";
    mso-padding-alt:0in 5.4pt 0in 5.4pt;
    mso-para-margin:0in;
    mso-para-margin-bottom:.0001pt;
    mso-pagination:widow-orphan;
    font-size:10.0pt;
    font-family:"Times New Roman";
    mso-fareast-font-family:"Times New Roman";
    mso-ansi-language:#0400;
    mso-fareast-language:#0400;
    mso-bidi-language:#0400;}

    Serial
    interface connected DCE and which DTE CISCO cable to another router, and in settings you put second router IP, if you have only one router it is strange you need to set up serial connection.
    If you are using the router to establish an ordinary broadband connection to an ISP, the mask should be 255.255.255.0.


  • Ginko
    Ginko Jul 29, 2008

    Keep troubleshooting with the expert you voted best solution, thanks.

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Connect to cisco 1841


This is more of a business unit. It requires a serial port connection and a fair amount of CISCO networking engineering knowledge. It is command only. No GUI interface.

Jan 30, 2013 | Cisco (1841) Router (cisco1841)

Tip

Cisco 1841 Router, Hot Sales Product Cisco 1800 Business Router


The Cisco 1841 router is designed for secure data connectivity and provides significant additional value compared to prior generations of Cisco 1700 Series routers by offering more than a fivefold performance increase and integrated hardware-based encryption enabled by an optional Cisco IOS Software security image.<br /><br />The <a href="http://www.router-switch.com/cisco1841-p-97.html">Cisco 1841</a> dramatically increase interface card slot performance and density over the Cisco 1700 Series while maintaining support for more than 30 existing WAN interface cards (WICs) and multiplex trunk cards (voice/WICs [VWICs]-for data only on the Cisco 1841 router).<br /><br />The <a href="http://www.router-switch.com/cisco1841-p-97.html">Cisco 1841 router</a> offers embedded hardware-based encryption enabled by an optional Cisco IOS Software security image; further enhancement of VPN performance with an optional VPN acceleration module; an intrusion prevention system (IPS) and firewall functions; interfaces for a wide range of connectivity requirements, including support for optional integrated switch ports; plus sufficient performance and slot density for future network expansion and advanced applications as well as an integrated real-time clock.<br /><br />Cisco 1841 router Product Details<br />Product Description Cisco 1841 router<br />Device Type Router<br />Form Factor External - modular - 1U<br />Dimensions (WxDxH) 34.3 cm x 27.4 cm x 4.75 cm<br />RAM 128 MB (installed) / 384 MB (max) - SDRAM<br />Flash Memory 32 MB (installed) / 128 MB (max)<br />Data Link Protocol Ethernet, Fast Ethernet<br />Network / Transport Protocol IPSec<br />Remote Management Protocol SNMP<br />Digital Signaling Protocol ADSL over ISDN<br />Features Cisco IOS IP Broadband , firewall protection, 128-bit encryption, hardware encryption, VPN support, VLAN support, Intrusion Prevention System (IPS), 256-bit encryption<br />Power AC 120/230 V ( 50/60 Hz )<br />System Requirements Microsoft Windows 98 Second Edition<br /><br />P.S. If you would like a new sealed Cisco 1841, the competitive price offered at RouterSwitch.com is US$586.00 per. Visit Cisco 1841 to see more...<br /><br />Notes: Router-switch.com is a World's Leading <a href="http://www.router-switch.com/">Cisco Supplier</a>, founded in 2002. It sells new, used and refurbished Cisco network equipment including Cisco routers 800/1800/1900/2800/2900/3800/3900 series, Cisco switches, Cisco Firewalls Security, Cisco IP Phones VOIP, etc.<br /><br />

on Jul 07, 2011 | Computers & Internet

2 Answers

I have Cisco 1841 Router, When I attached it with system and check it dispalys some garbage. please let me know the problem.


if you are connecting via a serial cable you would need to use TELNET to connect to your router...

Here is a link to aid you to connect to your router... http://www.petri.co.il/csc_how_to_use_hyperterminal_with_cisco_routers_and_switches.htm

Feb 17, 2011 | Cisco (1841) Router (cisco1841)

1 Answer

Flash: CompactFlash not present I am getting above error when i power on a cisco 1841 router


Please check the below point and revert if any queries





  • Default/maximum:32 MB/128 MB compact flash,128 MB/384 MB synchronous dynamic RAM (SDRAM)
  • The Cisco 1841 Router has a single, external compact flash memory. This is the only flash memory for the system and should never be removed whenever ROM Monitor (ROMMON) is being updated with a new image or configurations or when the compact flash LED light "busy" is on.

Sep 20, 2010 | Cisco (1841) Router (cisco1841)

1 Answer

G'day, I have a Cisco 1841 router which I would like to get the cable or pinouts to connect a PSTN modem. The aux port is RJ45 and the modem db25


Here is the pin out:
RJ45 DB25
1 -------- 4
2 -------- 20
3 -------- 2
4 -------- 7
5 -------- 7
6 -------- 3
7 -------- 6
8 -------- 5

Jun 30, 2009 | Cisco (1841) Router (cisco1841)

1 Answer

Ethrnet problem for cisco 1841 router?


Hi

You must enter the interface configuration mode and issue the command:

no shutdown

Mar 19, 2009 | Cisco (1841) Router (cisco1841)

1 Answer

Cicso router 1841 not connecting to the internet


When using Public IP addresses on one interface, usually facing your ISP, and using Private IP addresses (AKA RFC 1918) on another interface, usually facing your LAN, one needs to utilize network address translation (NAT) in order to connect LAN computing resources to the Internet.
Cisco has a fantastic article on how to perform the necessary procedures on their web site.
http://www.cisco.com/en/US/tech/tk648/tk361/technologies_configuration_example09186a0080093f8e.shtml

Sep 06, 2008 | Cisco (1841) Router (cisco1841)

1 Answer

Help me plz


cisco routers make use of an IOS software for configurations.

you have to connect the router to a computer system through an hyper terminal program in order to access the router command interface,there is no way you will be able to configure this router without having cisco configurations knowledge.

the steps could be complex/complecated for a novice.but all the same,

after running the hyper terminal program on your computer to connect the router(start-accessories-communication-hyper terminal) make sure you use cisco serial cable or a cat5e roll over cable.

press the enter key once and type 'enable' then press enter,

configure terminal,to take you to a global configuration mode.

i will advice that you should contact a cisco person in your area for help

Apr 23, 2008 | Cnet CN UM56-RS (CNUM56-RS) Modem

1 Answer

Dial-up link for cisco router 1841


It is possible if the IOS on your router supports the necessary dialing features. You'll need to use WIC-1AM analog modem modules (or similar) in each router. A cheaper alternative would be to use standard desktop modems...the serial ports could be connected to the Aux interfaces on the routers.
Good luck...and I hope this is helpful!!

Jan 23, 2008 | Computers & Internet

1 Answer

Adtran Atlas 550 alternatives


1: Would a Cisco 1720 provide a simple soltution for terminating a T1 to Ethernet 100 Mps I recommend a 1721 2: If this would not be an option, what Cisco box would provide the needed termination/routing I recommend a 1721 3: If a Cisco device could do this would it be necessary to replace them at both locations or could it communicate with the Adtran device. It depends on the topology of how your sites are interconnected to each other. Please describe in greater detail.

Apr 30, 2007 | Adtran Atlas 550 Router

Not finding what you are looking for?
Cisco (1841) Router (cisco1841) Logo

Related Topics:

460 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cisco Computers & Internet Experts

Prashant M
Prashant M

Level 3 Expert

2260 Answers

brian soufane

Level 3 Expert

693 Answers

Les Dickinson
Les Dickinson

Level 3 Expert

18381 Answers

Are you a Cisco Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...