Question about Cisco 1811 Router

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We use cisco 1811 as router and firewall when try to access outlook web access by internet it very slow speciealy in download

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Is this problem solved or you are still eperiencing this issue?

Posted on Sep 09, 2010

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WHAT ARE THE PORT RANGES FOR ADDRESSES


Usable tcp and udp ports range from 1 to 65535. However you should not need to open any ports by default. Most routers include a stateful packet inspection (SPI) firewall. This is a fancy way of saying the router inspects the packet on it's way out to the internet when a computer on the inside of the firewall sends it out to the internet. The firewall will only allow connections from the internet on that TCP or UDP port if it returns from the original destination. For example, if you send a packet requesting the web page at cisco.com, the firewall will only allow traffic back into your network on TCP port 80 from the web server at cisco.com. If a packet from any other IP address tries to piggyback into your network through tcp port 80, the firewall will block it.

The only reason to open ports on your firewall is to allow a server inside your network to receive unsolicited traffic e.g. a web server inside your network may need TCP port 80 and 443 (HTTP and HTTPS) opened if you want to be able to access it from the internet. A mail server may need port 25 and 110 open for SMTP/POP e-mail. However, most home users do not host their own mail or web servers.

Mar 22, 2014 | Cisco Linksys Refurbished E3000...

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Cisco 1800 Series, Business Router for Small to Medium Sized Business/Enterprise


Cisco 1800 Series Integrated Services Routers, the next evolution of the award-winning Cisco 1700 Series modular access routers, own more advantages than the formers. Cisco 1800 series, ideal for small to medium-sized businesses and small enterprise branch offices, enable businesses to reduce costs by deploying a single, resilient system for fast, secure, delivery of multiple mission-critical business services, including data, security, unified communications, wireless.<br /><br /><a href="http://www.router-switch.com/Price-cisco-routers-cisco-router-1800-series_c17">Cisco 1800 series router</a> has several models including 1801, 1802, 1803, 1811, 1812, 1841(most popular), 1861, all of them have some common features: a. Designed for small businesses or branch offices and to offer secure wireless networking; b. Multiple performance options based on local, remote, or broadband connections; c. Integrated security including encryption and protection against hackers; d. Virtual private networks for linking to partners, suppliers, and remote offices; e. Multiple options for adding reliability and option for reduced costs by using power from network cabling; f. Software upgrades to add new features and functions, and integrated switching capabilities.<br /><br /><a href="http://www.router-switch.com/Price-cisco-routers-cisco-router-1800-series_c17">Cisco 1800 series</a> router has several models including 1801, 1802, 1803, 1811, 1812, <a href="http://www.router-switch.com/cisco1841-p-97.html">1841</a>(most popular), 1861. You can check details of every type as follows:<br />The fixed platform models (1801, 1802, 1803, 1811, 1812) include multiple WAN interface options, plus:<br />Up to broadband speeds<br />Eight 10/100 Mbps built-in switch ports with optional Power over Ethernet (PoE), for providing DC power to network devices such as IP phones<br />Up to 50 VPN tunnels<br />Support for wireless local-area network (LAN) standards 802.11a/b/g<br /><br />The 1841 is a modular platform with a wide range of interface options, plus:<br />Up to T1/E1speeds<br />Up to four 10/100 Mbps built-in switch ports<br />Up to 800 VPN tunnels<br />Support for wireless local-area network (LAN) standards 802.11a/b/g<br /><br />The 1861 is a modular platform built on a fixed base with a wide range of WAN interface options, plus: <br />Integrated Cisco Unified Communications Manager Express or Cisco Unified Survivable Remote Site Telephony for call processing<br />Cisco Unity Express, for voice messaging and automated attendant<br />Integrated LAN switching with Power over Ethernet (PoE) expandable through Cisco Catalyst Switches<br />Onboard voice ports for PSTN, PBX, and key system connections<br /><br />With Cisco 1800 Series integrated services routers; you can lay the foundation for future growth and prepare for voice, video, wireless, and security solutions tomorrow. <br /><br />If you want to know more about e about the certain type of Cisco 1800 series, you can visit the list of Cisco 1800 router series, prices also offered.<br /><br />

on Jun 30, 2011 | Computers & Internet

1 Answer

When I try to access my cisco e1000 router on firefox or google it keeps saying that it is busy and will not connect


Are you trying to access the setup page of the router?
Did you install the Cisco connect software on your main computer?
If you have cisco connect software installed then open Cisco connect.
Go to Router settings. Click on Advanced settings. It will open the setup page of your router.

If the cisco connect is not installed then try to power cycle the router. Unplug the power to the router, wait for 30 seconds. Plug in the power cable. Wait for 30 seconds.
Now try to access the setup page.

If that is also not working then I will suggest you to reset the router and reconfigure it manually.

Watch video.
How to reset Linksys router.

Watch Video:
Linksys router setup



Feb 24, 2012 | Cisco Linksys E1000 WirelessN Broadband...

2 Answers

How to block web access to facebook on cisco 2911 router


For most cisco routers there may be an option under "access restrictions" in routers interface called "Website blocking by URL address"

To access the routers administrative interface, open up a web browser and type in the address 192.168.1.1 (by default unless previously modified) Cisco Router Price Buy Cisco Routers 3Anetwork com

Nov 04, 2011 | Cisco 2911 Router

1 Answer

Port forwarding not working on cisco 1811 router? Via the SDM, I have configured NAT, and verified that these settings are correct. However, our videophone application (which requires, TCP:1720,15328-15248...


Most of the CISCO 1800 series have some ACL's configured by default.

You may want to run a show run from the CLI to make sure that there isn't one interfering.

Also from the CLI, see if you can debug port forwarding. I can't remember the command off the top of my head but I will look it up and post it for you.

Oct 15, 2009 | Cisco 1811 Router

4 Answers

Can not login on con 0 port (not text), lost


default username and password for all router are

admin and admin

or

admin and password

try these two combinations

else try link

http://www.cisco.com/en/US/products/ps6187/index.html

Oct 03, 2009 | Cisco 1811 Router

1 Answer

Cisco 1811 router freez


replace your router, got a problem with the board...

Jun 18, 2009 | Cisco 1811 Router

1 Answer

Wrt150n dd-wrt firmware slow loading pages


First off thanks for using fixya.com

Second, I too am a dd-wrt user and found a similar problem when using dd-wrt with my IPCOP. You may want to go into the "Security" section of your dd-wrt and disable any fire walling or access-restrictions. Since you are already running zonealarm. Or remove zonealarm if you plan to use dd-wrt as your firewall.

Running multiple firewalls will slow down your network/Internet traffic.

Hope this helps you out.
Jei

Dec 15, 2008 | Linksys Wireless-N WRT150N Router

2 Answers

Can not conect to internet because of norton internet sercurity


Try to disable it for a while and check if it is really the cause of your problem . Restore service once connected and check norton settings to allow connection

Jun 26, 2008 | HP Computers & Internet

4 Answers

Installation of cisco asa 5510 firewall


If you can't get the manament working initially I suggest the following

Setup a console connection
Type "enable" and press enter to access priveleged exec mode on the ASA
Type "config terminal" and press enter to access configuration mode
Type "configure factory-default" and press enter to load default settings.
Assign a static IP to your PC of 192.168.1.5 and try to browse to https://192.168.1.1 (PC is plugged into management interface)

You should be prompted to begin using ASDM

Jul 30, 2007 | Cisco ASA 5510 Firewall

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