Router Cannot Get Dynamic IP From Network
May 7, 2011
I am using Charter and have been at this location for several year. All was well until they added one of those "walled gardens" like Comcast uses.When the cable modem comes on, and the wireless router is turned on, the router has trouble getting it's dynamic IP from the network. If I plug my workstation directly into the cable modem - bingo - IP comes very quickly every time.I have tried multiple cable modems and multiple wireless routers. I use MAC cloning otherwise Charter doesn't give an IP ever. I have tried using both Unicast and Multicast for getting the IP but, it seems like the routers request/respond to DHCP differently than a Windows PC (Vista and 7) does. If a computer and router use DHCP differently? It is weird because when there is a power outage things generally come back on without a hitch. Though if I unplug/plug the devices manually it takes me half an hour or more to get an IP most times.
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Dec 19, 2011
I have a high speed wireless DSL router from my ISP (Telus). I use one port off the router to connect directly to my desktop computer. Another port is connected to a switch to which ethernet cables to three other rooms are connected. My problem is that when I connect my Bell PVR (9242) to the 'switched' ethernet cable, I'm apparently not able to get a dynamic ip address, which the Bell unit requires, and can't connect to the network.can I connect another router, in place of the switch, to deliver dynamic IP addresses to whatever I connect to the ports in the other rooms in my house?
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May 3, 2011
I am wondering if there is any way to get the name and last name of the person that has the internet connection corresponding to a particular dynamic IP address that I know, that was used to send an email at a particular date and time that I also know.
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Feb 16, 2011
If this is the wrong thread for this pasted config, I am sorry. Let me know and I will delete it and move it else where. I just cannot seem to connect my Cisco 2651xm router to the internet from my PC. Here is the output of my config. I have Cox Cable Internet and my IP address is Dynamic but it has lukily stayed "static" if you will since I can remember am plugging in my laptop via straight-through to 2950 switch port fa0/2 and fa0/1 is connected via staright through calbe to router fa0/0. I told my PC to "obtain IP address automatically" since I made my router a DHCP server, but still no internet. I can however, ping the ISP 24.253.136.243, my default-gatewat on the router, 192.168.0.1, and I made a the vative vlan 192.168.0.2 and I can ping all interfaces fine and packets are being sent and received[CODE]
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Aug 1, 2011
I need to create a VPN tunnel between two offices of the same company. I bought two Zyxel P-661HW-D to create the secure VPN tunnel but the problem is that the two offices has a ADSL connection with dynamic IP. Is possible, with this router, to use a DDNS service to create the VPN tunnel or it' s required to have static IP ?
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Feb 11, 2013
I am on the lookout for free dynamic DNS for top level domain name such as example.com
There seem to be quite a few free dynamic DNS providers for third level domain but I am having trouble finding one for top level domain. I am almost on the verge of actually mapping the top level domain to a CNAME of a third level domain with dynamic DNS but I really don't want to do that.
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Aug 10, 2012
Having setup several WLC4402's in the past, I am posed with a new implementation that I have never tried before. I will be setting up a new 5508 that will ONLY be used for remote access-points in H-REAP mode. It is going into a data center and there will be no local LWAPP's.Is it still required to setup a dynamic interface on a network that will essentially only have the controller IP? Or can I serve all the AP's out of the single, untagged management interface (which I believe is also the old ap-manager interface now?)
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Jan 23, 2012
I am working with MS Windows 2008 R2 and a Belkin F5D8635-4v1 router.
I have already set up a dynamic IP address which points to my router at home. In my home network I have multiple PC's that I would like to access from the internet. I would like to achieve this without needing to change my port forwarding rules on my router each time...
My thoughts are that I use a single dynamic IP address pointed to my router. My router then forwards to a server with some sort of software that can then forward to the correct PC based on the host name.
So I have 3 domains set up all pointing to the router's IP address:
dest1.domain.com -> 41.xxx.xxx.45
dest2.domain.com -> 41.xxx.xxx.45
dest3.domain.com -> 41.xxx.xxx.45
The router is not smart enough to redirect by host name, so it will just forward everything to 10.0.0.20 The server based at 10.0.0.20 must then have software to now redetermine the target based on the host name. The rules would be set up as follows:
dest1.domain.com -> 10.0.0.22
dest2.domain.com -> 10.0.0.24
dest3.domain.com -> 10.0.0.26
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Nov 23, 2012
I`m working on Dynamic Vlan Assigmenton the basis of end user authenticatedwhoc are part of specific AD Group in c ampus enviorment.Objective: Need to assign the vlan on switch port on the basis of authenticated users OU Group in Active Directory. Eg: There are 2 OU groups in AD, Sales and Administration. Authenticated user in Sales group should get Vlan 10 and user in Admininstration Group shoudl get Vlan 20.
Components:
Cisco 3750x/Cisco 4500
ACS Version 5.2
Microsoft AD
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Apr 11, 2013
I'm trying to use 802.1x to authenticate clients on my network with dynamic VLAN assignment from RADIUS. We have IP-Phones(powered by PoE) that only supports EAP-MD5, and we would rather use MAB(it also uses LLDP-MED for some settings) to authenticate the phones using the MAC-range from the phones vendor. The following scenario works perfect:Connect the phone and let it boot up(takes a while) and authenticate with MAB.Connect a computer in the phones data-port and let it authenticate with 802.1x(or fail and reach guest-vlan) However, the following scenario doesn't work:The computer is already connected to the phoneThe phone is then connected to the switch What happends now is that the computer is authenticated using 802.1x before the phone boots up and get's authenticated with MAB. When the phone is ready, it's authenticated with MAB and everything works. However, after a short period(let's say a minute), using `debug authentication all`, we see a "NEW LL MAC: phones mac" message(which is weird since the mac has already been MAB-authenticated), and then we are unable to contact the phone using ping. When I check `show mac address-table` it has now moved the mac from `Port Gi 0/12` to `Port Drop`. However, if I check `show mab interface Gi 0/12` or `show authentication sessions` it lists the phones-mac as `mab auth sucess `.why the first scenario works, and not the second?
The switch is a 3560E PoE 24p with IOS 12.2.58SE2. Sample of the switch-config: network-policy profile 1voice vlan 90!interface GigabitEthernet0/12switchport mode accessnetwork-policy 1authentication control-direction inauthentication event fail retry 1 action authorize vlan 60authentication event server dead action authorize vlan 60authentication event no-response action authorize vlan 60authentication event server alive action reinitializeauthentication host-mode multi-domainauthentication order mab dot1xauthentication priority mab dot1xauthentication port-control autoauthentication periodicauthentication violation replacemabdot1x pae authenticatordot1x timeout tx-period 5dot1x max-reauth-req 1spanning-tree portfast!Btw, when we tried authenticating the phones using 802.1x too (EAP-MD5), there are NO problems in any of the scenarios. However, we want to use MAB instead of 802.1x to avoid the requirement of configuring the phones with a username and password. The RADIUS response was the same when using 802.1x as it is with MAB for the phones (including device-traffic-class=voice AV-pair).
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Jun 19, 2011
this is ASA5520 associate with 8.4(1). very simple scenario , three ports: inside . outside . DMZ my problem is how to use network object NAT to perform Regular Dynamic PAT and Identity NAT.
for example, this is my configuration
**** first i configured Regular Dynamic PAT****
object network myinside
subnet 10.200.11.0 255.255.255.0
nat (inside,outside) dynamic interface
**** then , i met problem when i want to make identity NAT between inside and DMZ****
**** if i add below CLI , the first nat line will be replaced ****
**** SO IF I ADD THIS****
[code]......
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Dec 30, 2011
I Have a D-Link 364M, and a dynamic IP. But I've had this IP for over 2 years now and it does not changeCalled the ISP, they said it's a router issue and I need to contact D-LInk. D-Link says they do not cover my router anymore so I can't get support. Unplugging the router for 24 hours did nothing So I assume the problem is some internal setting on the router website that is doing this.
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Dec 8, 2012
I have one Dynamic DSL line, this line plug to the Dlink router can work properly. But for some reason, we need to change to the cisco 877 router, when I conenct this line to the cisco router, it cannot work, the configuration seems incorrect. [code]
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Jan 2, 2012
set up Dynamic DNS on 2 wire router 2701HGV-E
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Jun 27, 2012
I'm using comcast broadband, motorola SB6121 modem and a edimax br-6424n wireless router.I set up everything myself and it worked great for 3 weeks.Usually, I have 2 laptops connected and iPad.[CODE]
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May 27, 2013
I've got an 887M router which will be configured with two linke - one ADSL, one 3G - both of which will have (obviously) a separately suppplied IP address from the different ISP's being used. The 3G is a backup - plain and simple - for use only when the DSL service flakes out (which it does often)
Routing is pretty simple - I'll either do soemthing with a bit of PBR, or a simple weighted static, but the NAT has me scratching my head a little.
Can I have two outbound NAT pools (ip nat outside) for each interface which will be used ONLY for traffic going out the interface concerned?
For example, I have one for the primary link
ip nat inside source list 2 interface Dialer1 overload
Can I do the same for the second dialer interface like this
ip nat inside source list 2 interface Dialer2 overload
and have them automatically switch to using the dialer 2 IP for the outbound NAT if the dialer 1 link fails?
I don't think I've ever come across this before, so I'm not sure if it can even be done.
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Jan 10, 2013
Region : Portugal
Model : TL-MR3220
Hardware Version : V2
Firmware Version : TL-MR3220_V2_121126_UK
ISP : OPTIMUS (26803)
I buy a Router TL-MR3220 and Forwarding e Dynamic DNS not work. I installed the latest firmware version (TL-MR3220_V2_121126_UK) and does not work well.
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Aug 22, 2012
I have an Internet link, connected to my Cisco Router. The package I subscribed for comes with a dynamic IP Address. I was told, if I need to remote access into the Cisco Router, I need to enable the DDNS feature. Can this be done on a Cisco Router?
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Dec 18, 2010
how to configure the Cisco 1941 router for PPPOE with dynamic IP
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Mar 25, 2013
I'm wondering if there is a possibility to get my homepage provider's custom dynamic DNS service working on my Cisco SRP541W Router as I'd not like to be forced to sign up for either DynDNS or TZO which are available through the web frontend.
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Dec 12, 2010
Am trying to do a dynamic configuration of a 3900 series router (3925 to be precise).For the software and licenses, under the IOS technology Package Licenses, what's the significant of SL-39-DATA-K9 and SL-39-SECNPE-K9? Are they really necessary for the router?
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Nov 13, 2011
i have internet connection which is connect using dynamic ip address but if i add ip address in Local Area Connection i get two networks, one is internet dynamic ip & other one is ip which i setup in Local area connection. so if i select LAN network for lan clients i can access lan. but now i have DLINK DIR 615 router so what should be my settings?
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May 2, 2012
I have applied for a dynamic dns service, but need applying in linksys E1000 settings
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Jul 18, 2011
Any list of dynamic protocols that support BFD, 2821 router support for BFD dynamic routing protocols
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Feb 11, 2012
I've got problem trying to connect the CISCO-887VDSL/ADSL OVER POTS ROUTER to internet. Only got the LAN part working.I'm trying to setup PPPoE with dynamic IP Followed CISCO's documentations but the commands used were not recognized by the router.
here's my config.
!
! Last configuration change at 08:31:51 UTC Sat Feb 11 2012
version 15.1
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
[code]....
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Apr 22, 2013
Cisco RV042 Dual WAN VPN Router -how to configure dynamic DNS without having to use the pre-programmed DDNS companies that are populated by default if my DDNS company is not listed and you cannot manually enter another company that is not on the list?
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Feb 6, 2012
I have a WRT300n router and want to connect to my Uverse Gateway. When I connect them & try to use the internet connection I get an error that says a connected router must be capable of using DYnamic IP addresses.
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Nov 17, 2011
I need to configure an existing 2600 router to use dynamic NAT for access to the web and ALSO I have (5) fixed IP addresses for use with an email server, a web server, and (3) future servers. I do not know the concept of how to set this up. I'm currently using dynamic NAT for the web and this seems OK but I dont know how to map my fixed servers. I assume this is done with static NAT. Do I need to add sub interfaces on the S0/0 T1 interface for each of these fixed IPs? Then do I somehow do static NAT on these fixed IPs to their respective servers?
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Dec 12, 2010
I have Cisco 877 routers, with ethernet (LAN) and ADSL (external) interfaces. The ADSL interface gets dynamic IP. Is Site to Site VPN with Dynamic IP and Internet Browsing Possible on the Same Router.
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Mar 8, 2013
My ISP provides two dynamic IP addresses. I have two computers that I want to each have a separate IP. I was told by the ISP, by two different CSR's, that I need a Desktop switch in addition to my Linksys WRT400 router. I purchased the D-Link 8-Port Gigabit Desktop switch and connected everything correctly. Although the internet works on both machines, they are still showing the same IP address. How do I allocate a separate dynamic IP to each machine?
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Jan 19, 2011
I have a PC that I would like to access remotely though VPN. My internet service provider is Time Warner Cable and it provides me with a dynamic Ip address.
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Apr 9, 2013
where I can find a step by step guide of how to setup Dynamic DNS so that my PCs can be accessible from outside the LAN using Remote Desktop?
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Mar 31, 2013
Exactly as the title states. I have looked at my router and whats my IP; made sure I was 100% correctly typing it in. All failed. Even resolves to the same IP.I can remote desktop, visit my forum, minecraft; all via dns but not IP.
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