I have cisco router C1700. Interface FastEthernet0 is connected to ISP and obtain public IP and DNS via dhcp.On interface FastEthernet1 is connected private network. On router is configured dhcp pool that assigns addresses to private network connected on FastEthernet1. Is there configuration that automatically add the DNS servers from my ISP into the DHCP pool?
View 5 RepliesAutomatically some client ptr record vanishes from dns where as host (a) record exists, how can i verify from client side or how can i see logs files in client machine for the same.
View 1 Replies View RelatedI coulden't visit any websites and it gave me an "error 105" something. So i tried connecting my other comp to the internet cabel with the same result. So i tried to find a solution on the web (wierless internet still worked) and stumbeld upon a similar problem were the answer was to manually fill in an adress in the "internet protocol version 4" properties in the "local area connection" properties. I then noticed that i dident have the "Obtain DNS server address" set to automatically and that the other manual boxes were empty. I then turned the auto on an i had access to internet. Is this safe? Cause i read somewere that DNS server addresess were provided by the company that provide you your internet service, and that you can be redericted to a fake website that can get a hold of your account information on it
View 1 Replies View Relatedi have a server with windows server 2003 that SQL server 2008 is installed on it.regulary server service will be stoped automativcaly and all shared folders will be unshared and i must restart server and waiting for next stop and .
View 1 Replies View RelatedI would like to know on how can i setup my cisco 877 router at my small office. Here are the things that i need to do:
1. I need enter the internet static ip address 61.10.xx.xx/subnet mask/gateway/dns provided by my ISP.
2. I need to configure the cisco router DHCP so that the 4 computers can obtain an IP automatically. Howow can i accomplish this setup.
Why do I not have internet access from C1700? I have 2 routers and two cat switches.
View 6 Replies View RelatedI Have a problem I'm trying to configure automatically my switch over ther DHCP when I start the switch it request an IP from the DHCP from here everythings is fine but it does nothing more,indeed I put on my dhcp the option 66 and 67 which is an adress of my TFTP server and a file to download and the switch seems not to understand theses options , I tried my dhcp with a cisco airport and everythings works fine the File from the TFTP is automatically downloaded into the airport...There is an option to add or am I missing something in order to make it work with my switch ?
My switch : Catalyst 2960IOS VER : 12.2(55)SE5
I just bought a Linksys E4200v2 router and updated the firmware to 2.0.26.124551. The DHCP server is turned on however, it won't issue any IP addresses. I have to set IP reservations for all of my devices in order for the router to give them an IP address. This includes my printer, xbox360 and 2 computers. I'm also having this problem with the wired and wireless lan.
View 4 Replies View RelatedI have a Cisco router C1700 and it is presenting unknow errors on Serial 0/0 and fa0/0 interfaces. Why this counter is increasing?? Im not very sure if is by CDP neighbors or Vlans that are not configured on a switch attached.I undertand that the unknown protocol drops field displayed in the above example refers to the total number of packets dropped due to unknown or unsupported types of protocol. How to solve this unknown DROPS? [code]
View 4 Replies View Related2 dhcp server on the same lan segment not thesame ip add series , how can i prevent to lease ip from another ip series
View 2 Replies View RelatedI have a LAN running on a 10.60.1.* scope and I am running out of IP addresses. My windows server 2003 IP is 10.60.1.3 router is 10.60.1.4, If I create a superscope with 10.60.1.* and 10.60.2.* scopes within it and add an IP address from the 10.60.2.* range to both the servers and routers network configurations would this allow the clients on both scopes to see the network? The router links our office to other offices as well would the new IP range cause all kinds of routing issues?I know with the resubnetting option changing to a 255.255.254.0 from the current 255.255.255.0 would allow the use of 10.60.0.1-10.60.1.254 in a single subnet but I suspect this would cause problems with seeing the other offices unless all routers were reconfigured to recognise our offices new subnet mask.
View 1 Replies View RelatedI am trying to set up a small domain for my business. I just purchased a Windows 2008 server and would like to use it as my domain controller.Also, I just had a new ATT DSL line put in. It came with a 2Wire modem/4-port router/wireless router device, therefore the modem can handle DHCP. The line has a static IP address as well so that I can eventually use my own exchange server and web server.I have tried 2 different configurations and couldn't get either to work) I tried to put the router into Bridged Mode and use DHCP server on my server using a PPPoe connection to connect to the Internet. I was confused as to what my static IP address and default gateway of my server should be.2) Then I tried to turn DHCP server off on the server and routing back on the modem/router. This didn't work either.What method would you recommend and why? Also I have some additional questions on each method.
Method 1)
* What is the static IP address of the server. Is it in the 192.168.1.x address or the static IP assigned to my account?
* Do I need a second Nic Card And Router to connect to the rest of my network or can I use the router provide
* What would the Static IP addresses of the additional PC be. Do I need more than 1 static IP from AT&T Method 2)
* Will this allow me to use all internal IP addresses on my machines and use port forwarding if I want a specific box to be a web server or exchange server.
Ethernet adapter Local Area Connection 2; DHCP Enabled: No
View 4 Replies View Relatedhow can i see unauthorized dhcp servers in my network
View 1 Replies View Relatedi have the following scenario that i'm requesting you guys verify if it will work.I have a 3550 catalyst switch running EMI and an auotomous 1131AG aironet ap, i have two dhcp pools already setup on the switch one for the LAN and the other for the wireless clients.There are two vlans on both the switch and ap for LAN and wireless clients.I have already setup multiple SSID's to be broadcasted from the AP, is there a way i can bind one SSID to the lan dhcp pool and the other to the wireless clients dhcp pool?
View 1 Replies View RelatedI have successfully configured my DHCP server because I can ping it from the clients PC and my clients PC automatically grabs IP from my DHCP. How my clients can have access to internet. Here is my hardware setup: 1. I connect clients PC and one DHCP server in one unmanaged switch2. I have my Bell DSL Modem but not connected yet to one of these machines. I do not know how I can configure it yet to work with my machines.The IP I assigned started at 10.10.200.10 to 10.10.200.90How do I connect the DSL and configure so that it may give everyone access to internet?
View 1 Replies View RelatedI've done a very crude drawing of the network setup I'm working on. I just need to run an idea past some network guru's to see if I'm right about my idea.
The existing network consists of
Internet
Proxy Server
Several switches scattered around school
PC's
What the school wants to do is setup a side-along wireless network that uses the same physical switches but on a different subnet. The current subnet is 10.172.1.x .
To facilitate this I'm running a 2008r2 running RIP V2 to route internet traffic to 192.168.1.x subnet. I've had the wireless units use a static address and their own dhcp servers on the 192.168.1.x subnet. Wireless devices found their way to the internet fine. But I'd like to control the addresses from a single point of contact, hence the 2nd domain server running 2008r2. There are reasons for using a 2nd server, I've covered this in previous topics. If it's important, lets call it an intellectual exercise and leave it at that.
The question(s) : If I run a DHCP server on the 2nd server serving 192.168.1.x addresses, then any device on the physical network will obtain either an 192. or a 10. address correct ? The wireless devices will only take a 192. address because the wan address is statically assigned to a 192. address ?
The 2nd question : By setting a static routes out of the 2nd nic on the 2nd server, I can control the dhcp server so it will ONLY route dhcp requests to the statically assigned wireless devices ?
I have Server 2008 R2 DC & One ISA server 2006 enterprise. im facing problem with DHCP unable to give DHCP IP from internal LAN. Its taking IP from External LAN IP i.e. connected to Linksys external Router which has DHCP enabled with different IP class i.e .class B. After shutdown client PC it will take 0.0.0.0 no IP will be assigned & says linited connectivity.
View 4 Replies View RelatedI have two locations both about 800meters apart, one is my home and the other address is a campsite where i have a linked router network (WDS with routers running ddwrt) where campers can all use the internet and also i have several IP cameras. Obviously both address have different gateways and therefore their own DHCP server. Everything was running perfectly until.I linked both of my address up using a long range antenna and now i am having problems.
Sometimes the two DHCP servers are competing with each other (i need both addresses on the same subnet in order to view my IP cams from home) and sometimes the computers log on to the wrong gateway. Its very annoying because the only way i can resolve it is by turning of the "linking routers" for a minute and then the Computers log onto the correct gateway. This happens to clients both side of the bridge. I have many different clients on both side of the bridge so assigning each computer (via windows) its fixed default gateway and DNS is out of the question as some of the clients are Camper's PC's and mine and my wifes laptops swap between both locations.
Now my query is, how can i block both DCHP servers from going over the bridge? OR can i have them on both separate subnets and still view my IP camera and still access all the routers from each subnet (i need this because sometimes i need to reboot the routers from home)
I have a WLC 2106 which is configured and working as follows: [code] how do i get the AP at Site B to use the local server (10.0.28.x) to hand out DHCP leases?
View 3 Replies View Relatedwin 2003 dhcp server. when I leave dhcp services OFF i can ping the server fine. once i turn ON dhcp services the connecting drops in and out.. what is going on here?
My users are unable to get a steady connection to the dhcp server.
dhcp server failed while running network diagnostic test for windows xp
View 1 Replies View RelatedI can't seem to find any info on how to configure 2 DHCP server pools on a C3750, to use with 2 user vlans. The purpose is that users in vlan 1 should get an IP address from DHCP server1, and users in vlan 2 should get an IP address from DHCP server2. Both DHCP servers are configured in a stack of C3750 switches, which acts a a L2 switch.
View 2 Replies View RelatedI'm using a 2601X router connecting to a broadband connections. The following NAT connections is working but I need to do NAT exemptions to set up my VPN appliance on the DMZ. I see a lot of documentation on how to use a pool of public addresses to do that, but I only have the one dhcp address from my isp.
!
boot system flash:c2600-adventerprisek9-mz.124-25d.bin
!
!
!
interface FastEthernet0/0
[code]....
Do you have the ability to setup DHCP servers on this layer 3 switch? I know I can with my old 3550 switch. Want to upgrade and make sure this model supports setting up dhcp servers on it.
View 3 Replies View RelatedWe are planning to split the Private servers from the DMZ Servers and configure an additional Interface and segment for this purpose.
Private Servers Segment: 192.168.4.0/24 (there is no DHCP all servers' IPs are statically configured)
DMZ Segment: 192.168.3.0/24 (This is a future deployment)
LAN Segment: 172.17.0.0/16
Both, Private Servers and DMZ Servers are in a collocation as well as the ASA5520. There are multiple Branch offices that uses subnets within the 172.17.0.0/16 Network and they are connected to the ASA5520 via Metro-E.
I do not know if this is possible but what I want to do is this:
In order to avoid the change of internal DNS records I want to mask the DMZ servers with a Private Server IP when a Private server or LAN host wants to access it like this:
The FTP server in the DMZ has the IP address: 192.168.3.100. But when a PC from the LAN wants to reach the FTP server it should points to its old IP: 192.168.4.100. This way the PC sends a packet to the ftp.corporate.net (192.168.4.100) the ASA recieves the packet and translate it to the (192.168.3.100) and send it out through the DMZ Interface.
Also if the Private Servers wants to reach the same FTP the ASA will act like a proxy-ARP and send the paquet to the DMZ by means of the translation of the IP.
I Have exented vlan 120,121 from DC-1 to DC-2,the DC-1 and DC-2 are connected using L2 Trunk over fiber terminated on Cisco 6513 on both site ,the distance around 40 Km ,on the DC-2 i just assigned server-1 TO VLAN 120 while server-2 in vlan 121 ,but these servers unable to communicate neither with DC-1 Servers or betwen them locally on DC-2 ,pls note that the servers at dc-2 rely on DC-1 for routing.
View 7 Replies View Relatedi'm trying to connect 5 servers together to create a private network.Each server has a network of it's own and i'm trying to make all 5 servers communicate with each other to share and search data simultaneously..
View 16 Replies View RelatedI have some DHCP trouble since I subnetted my network with a 2921. My clinets are in 172.16.2.0/23 and DHCP servers are in 172.16.5.0/24.Sometimes, randomly I guess, I get NACK from my DHCP server, and if I look into DHCP logs I got something like this:
15,11/09/12,09:52:27,NACK,172.16.3.172,switchE51D12.host.com,A0CF5BE51D12,,0,6,,,,,,,,
15,11/09/12,09:52:28,NACK,172.16.3.172,switchE51D12.host.com,A0CF5BE51D12,,0,6,,,,,,,,
15,11/09/12,09:52:29,NACK,172.16.3.172,switchE51D12.host.com,A0CF5BE51D12,,0,6,,,,,,,,
[code]....
Have a client wanting to hand out public ip addresses to all clients from a PFSense Firewall terminating the internet connection.
How do I allow the Cisco Switches currently in place, configured with private ip addresses in the 10.10.x.x ranges and Vlans, where the main 3550 layer 3 has defined dhcp scopes for each vlan, to relay dhcp requests from all vlans to the PFSense firewall?
I assume I would take off the currently defined dhcp scopes for the vlans and configure each vlan/switch with the ip helper address and specify the PFSense firewall and that Nat would have to be disabled onthe firewall?
I have a Cisco ASA 5500 as the main router with a DIR-655 as a wireless access point behind it. DHCP is turned off on the 655 as the ASA is providing DHCP. This worked great for about a year and now suddenly, without any changes, I'm having problems. The only thing that connects without a problem is a laptop, which shows up on the device list with an IP. Other devices have problems. iPhones connect, show an IP on the device itself, but when listed in the connected list on the 655 show no IP. The connection is super slow. An Airport Express will connect, but again, shows no IP in the connected list on the 655. Using the ethernet cable from the Airport Express, nothing can get an IP. I can live with the iPhone not connecting, but the Airport Express not connecting is a major problem. Any reason why this would just stop working one day?
View 2 Replies View RelatedHow to set up time automatically in DI-624. I know that is old, but I need to syncro with an NTP.
View 3 Replies View RelatedMy bootvar is set to boot up images from disk0. The 6500 series switch has two redundant supervisors.Each supervisor has a PCMCIA card with the exact same IOS images in the 0 slot. The secondary supervisor is given the disk name slavedisk0 and the primary is simply disk0
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