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Problem connectiong to DHCP server and acquiring a network address from router. using netgear router and linksys adapter. ICS

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  • Mark Robinson May 11, 2010

    when you view available wireless networks are you able to connect to your preferred ie netgear router ? if so try resetting the router and let me know what happens then

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Hi There,

Your router, is it wireless?... anyway take a look at the security settings. I think that you have setup up your security setting with a wep key. If so than you need to enter a pass work into your computer to access the router for it to assign a IP address.

Let me know if you need more help.

Regards,

Philip

Posted on Dec 09, 2008

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Need help connecting wireless router


To connect a laptop to a wireless network for accessing internet....you have two ways:-

  1. DHCP (Dynamic Host Control Protocol)
  2. Manual entry of settings in wireless adapter properties.
1.DHCP:-
In DHCP method you dont have to enter any settings on the wireless adapter. The wireless network which you are connecting will automatically assign an IP Address to you. But to use DHCP it must be supported by your wireless network.

2. Manual entry of settings in wireless adapter properties.

This method is mostly used over wireless Connection in small networks connecting 2-200 computers. In this method you have to obtain the following information from your connection provider.
  • IP address (Its format is "xxx.xxx.xxx.xxx")
  • Default gateway address (very important)
  • Primary and secondary DNS (If not given then you can use "8.8.8.8" as primary DNS and "8.8.4.4" as Secondary DNS...thats free DNS service from google and its very fast)
  • Subnet Mask (not needed mostly...automatically generated)
To enter these settings you have to rightclick the Wireless Adapter>> and select properties>>Then double click the Internet Protocol version 4(TCP/IPv4) and enter these settings. In many cases when you are using proxy server then you have yo use proxy settings also in your browser..
Hope this will help....Cheers..:)

Sep 25, 2010 | PC Desktops

Tip

DHCP Server configuration in Linux


Linux is a UNIX based operating system. It is a server operating system. REDHAT Linux is Enterprise version of Linux. Now a day's Most of corporate sectors use red hat Linux as server in their company because it is secure very much.

Full form of DHCP "Dynamic Host Configuration Protocol. DHCP server assigns IP addresses and other network configuration information like subnet mask, broadcast address, etc to computers on a network. The DHCP assignments are the following.

Lease Request: Client broadcasts their request to DHCP server with a source address of 0.0.0.0 and a destination address of 255.255.255.255.
IP lease offer: DHCP server replies with an IP address, subnet mask, network gateway, name of the domain, name servers, duration of the lease and the IP address of the DHCP server.

Lease Selection: Client receives offer and broadcasts to al DHCP servers that will accept given offer so that other DHCP server need not make an offer.

The DHCP server then sends an ack to the client. The client is configured to use TCP/IP. Lease Renewal: When half of the lease time has expired, the client will issue a new request to the DHCP server.

Installation of DHCP server: First of all while install the RedHat Linux enterprise version server be careful about the ports and the services must be turned on. To create DHCP server in Linux first download DHCP RPM package and install with "rpm-ivh" command. Where I have done it there I have create YUM server, so easily I have download and install it by YUM (yum install dhcp version). DHCP package will locate in /usr/share/doc/at Linux file system. I copied the DHCP's files from /usr/share/doc/ to /etc/dhcpd.conf.. Then I started to configure the dhcpd.conf file to route the DHCP server in there local network. I have open the configuration file with "vi" command. Then commented out the lines from "default gateway to option netbios" because system don't read the commented lines. After that I set the range of IP address in dynamic- bootp of their local assumption of system. I have change the "next-server" with the dhcp server name and have also change the fixed address with the dhcp server IP address (end range of dynamic IP). It is very easy job to configure DHCP server. After configure the .conf file of dhcp just turn on the service with "chkconfig" command and restart the dhcp service. After that entire job I reboot the system. And after rebooting of server I turned on the other client system. While startup the client system without static IP address all of those picked up IP from dhcp server and going on successfully. I have prefer the command line mode to do the total job.
The DHCP server configure file is following:

ddns-update-style interim
ignore client-updates

subnet 192.168.1.0 netmask 255.255.255.0 {
# The range of IP addresses the server
# will issue to DHCP enabled PC clients
# booting up on the network

range 192.168.1.201 192.168.1.220;
# Set the amount of time in seconds that
# a client may keep the IP address

default-lease-time 86400;
max-lease-time 86400;

# Set the default gateway to be used by
# the PC clients

option routers 192.168.1.1;
# Don't forward DHCP requests from this
# NIC interface to any other NIC
# interfaces

option ip-forwarding off;

# Set the broadcast address and subnet mask
# to be used by the DHCP clients

option broadcast-address 192.168.1.255;
option subnet-mask 255.255.255.0;

# Set the NTP server to be used by the
# DHCP clients

option ntp-servers 192.168.1.100;

# Set the DNS server to be used by the
# DHCP clients

option domain-name-servers 192.168.1.100;

# If you specify a WINS server for your Windows clients,
# you need to include the following option in the dhcpd.conf file:

option netbios-name-servers 192.168.1.100;

# You can also assign specific IP addresses based on the clients'
# ethernet MAC address as follows (Host's name is "laser-printer":

host laser-printer {
hardware ethernet 08:00:2b:4c:59:23;
fixed-address 192.168.1.222;
}
}
#
# List an unused interface here
#
subnet 192.168.2.0 netmask 255.255.255.0 {
}

on Mar 17, 2011 | PC Desktops

1 Answer

Unable to connect to DHCP server. getting 169.254 ip Have already tried the following: unplug/ reset reboot router; ipconfig /release /renew; Run MBAM Version 1.43; System restore to a date when connection...


Whew! Awesome troubleshooting work there.

When it's configured for DHCP, go to the Internet Protocol (TCP/IP) Properties and hit Advanced to bring up the "Advanced TCP/IP Properties" dialog.
Under the IP Settings tab, the top panel should be "IP addresses" and should have "DHCP Enabled" as the only entry, and the default gateway should be blank.

If both of those are correct, then I have one other question for you:

When you manually set an IP, are you able to use the network? If so, are you able to ping the DHCP server's address?

If so, then my guess would be that the DHCP server has a stale record for your Dell's MAC address.

Post back with the "Add Comment" button here and we'll get it working for you.

Jan 06, 2010 | Dell Dimension 3100 PC Desktop

3 Answers

No ip address


Network Card's driver is not installed. Check and install drivers from Device Manager Window.

IP Address can be assigned automatically(through APIPA/DHCP) or Manually.

Automatic:
There is no DHCP server, it takes the Automatic Private IP address(APIPA) or else get it from DHCP server by using "ipconfig" command
Steps: Start>accessories>command prompt>ipconfig /renew

Manually:
Right click on My Network Places> Properties>Right click on Local Area connection>Properties>General Tab>select Internet Protocol(TCP/IP)> Properties>General> select "Use the following IP address> assign IP, Subnet Mask, Gateway and DNS> Press OK Tab.

Dec 10, 2009 | Dell Dimension 3000 PC Desktop

1 Answer

Acquiring Address Problem


you will need to make sure that DHCP is enabled within the routers settings as this will tell the router to assign ip addresses automatically, then go to network connections, right click on your network card>properties>TCP/IP line>properties and tick 'obtain an ip address automatically', click ok, close window and restart pc.

Sep 24, 2008 | HP PAVILION A6230N DESKTOP PC

3 Answers

Attempting to acquire network message but fails


is your network on DHCP, trying using the static IP Add.

Jul 17, 2008 | Belkin PC Desktops

1 Answer

Replaced Linksys Wireless-B 2.4GHz 807.11b Router and Wireless B 2.4GHz 802.11b Wireless-B Notebook Adapter with Linksys-N Ultra Range Plus Wireless-N Gigabit Router, and Wireless N Ultra Range plus Dual...


Try resetting your IP address:
The laptop may be trying to use the IP address from the old router.

1) Click Start (assuming Windows 2000, XP, or Vista)
2) Click Run
3) Type in CMD
This will take you to a black command box
4) Type in: ipconfig/release
The chart should show your IP address as 0.0.0.0
Once this has happened, proceed to step 5
5) Type in: ipconfig/renew
You should now see a new IP address listed.

Also note that you need to set up your network key (assuming that you are using one) on both the router and laptop.
Make sure that your router is set up to perform as DHCP server.

FW

Apr 30, 2008 | PC Desktops

1 Answer

Wireless connection to netgear Rangemax Wireless router, see's router but won't connect?


Check your router to see if the DHCP server is enabled. If not, then either enable that, or manually assign your wireless network card an IP etc.

Also check the router to see if it is set to have access restrictions like mac address filtering. Even with the right IP setup on your wireless card, you will still need to be authorised in the mac address list of the router to gain access.

If you don't have another computer there, or a lan cable to connect to the router, then do a reset to default and it should have most if not all of the security features off and the DHCP server on.

Apr 18, 2008 | PC Desktops

1 Answer

WINS Servers


Are you sure that you need WINS? WINS is typically only used on a corporate network and is not used very often anymore. Whether you are using static IP's or dynamic (DHCP) you can still manually add the WINS server IP address in the TCP/IP settings of the adapter in question. If you're using DHCP, are other systems on the network getting WINS? Perhaps ths DHCP server is not set up (or not capable) to pass out the WINS server address.

Sep 02, 2007 | PC Desktops

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