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Configure Cisco router as a basic DHCP server | Cisco router | Tech-Recipes

Started by qdideas · il y a 9 mois

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8 comments

Anonymous
il y a 4 années

Where does the DNS server gets its IP address?, Do you have to configure it?, does it contain in its default configurations. Please calrify.

reply

ABC
il y a 3 mois

DNS Servers are manually configured by the System admin... In the above example the DNS Servers are assigned IP from the Excluded range because DNS Servers need to be configured by Static IP's..

reply

qmchenry
il y a 4 années

If I'm understanding what you are asking, the answer is that hosts that provide services such as DNS or HTTP need to have statically assigned IP addresses. While this can be done by configuring the DNS server to map a static IP address to the MAC address of the DNS server and have DHCP assign this IP address to the server when it asks, but it may be easier and safer to manually configure the IP address of the DNS server rather than use DHCP. One reason to do this is so that, in the event that you have to change the ethernet card in the DNS server, you won't have to rememeber to change the MAC address in your DHCP server.

The command

dns-server 192.168.1.5 192.168.1.6

In the configuration above sets the values for DNS servers that the DHCP sends to clients for use in the client resolution of names.

If this doesn't help you, let me know what you are looking for and I'll try to help.

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Anonymous
il y a 4 années

Will this configuration only assign IP's to clients on the interface that 192.168.1.0/24 is attached to? say I have an external interface of eth0 which connects to my firewall and between my firewall and my router I have clients who rely on another dhcp server for their configuration. Behind eth1 I have clients that require dhcp for their configuration and I want only the ip pool on the router's dhcp server to be assigned to these clients as I'm trying to seperate subnets.

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Anonymous
il y a 4 années

<ul id="quote"><h6>qmchenry wrote:</h6>If I'm understanding what you are asking, the answer is that hosts that provide services such as DNS or HTTP need to have statically assigned IP addresses. While this can be done by configuring the DNS server to map a static IP address to the MAC address of the DNS server and have DHCP assign this IP address to the server when it asks, but it may be easier and safer to manually configure the IP address of the DNS server rather than use DHCP. One reason to do this is so that, in the event that you have to change the ethernet card in the DNS server, you won't have to rememeber to change the MAC address in your DHCP server.

The command

dns-server 192.168.1.5 192.168.1.6

In the configuration above sets the values for DNS servers that the DHCP sends to clients for use in the client resolution of names.

If this doesn't help you, let me know what you are looking for and I'll try to help.</ul>

reply

Mandar C Jambotkar
il y a 4 années

Hi...

i'm developing an uniformed mobile applicaton which should support 3 OS, i.e Symbian, Palm, Win CE.

The issue i'm struggling with is, i want to exclude the neccessity of Sync server in between. I'm using Appforge Crossfire as front end and Ms SQL Server 2000 as backend.

Thus, to identify any PDA device is there any other option rather than MAC addr and how can i achieve the same.

Thanking You...

reply

winelle
il y a 6 mois

where did you get the dns server?? and what ip should be use is it the lan or wan?

reply

Sridhar V
il y a 2 mois

We are getting a 4 mb internet leased line to our college. We have a cisco 2600 series router. I want to config NAT as well as DNS in the router so that the clients will be given static IP address in the local LAN side with Gate way only. WIll the router be able to resolve the DNS queries of the computers. If can please give me details how to configure the above in the router.

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