LAN Cannot Get IP Addresses?
Mar 15, 2012
On my desk top home computer (XP Home Edition) connected directly to High speed Internet modem/router with a ethernet cable :The modem/computer connection worked for many months. Recenttly, I had to re-install my Network Driver because of a virus problem. The LAN icon now says :"Status: Acquiring Network Address" but it never gets to a connected status. IPconfig/all shows all 0.0.0.0 I have another laptop (Windows 7) using same network/modem thru wifi WLAN mini card and it connects fine to the Internet. IP values[CODE]
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Oct 8, 2012
In setup for old RV042 (V1), when updating / adding Mac addresses, the table is always sorted by IP addresses. But in the new oneRV042 (V3) I have, even with latest firmware 4.2.1.02 the list is random, thereby increasing the chance of user entering DUPLICATE IP addr with diff Mac addr. That will result in conflict.If the firmware sorts the DHCP entries by ip addresses, user would be able to catch duplicate ip errors even if the system does not flag the errors. All Cisco smart engineers can you all get the dhcp entries SORT by ip addresses.
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Mar 4, 2011
Our company is a small one and steadily growing towards mid size. We currently have about 200 or so users. Naturally we have run out of IP addresses and now we must redesign the entire IP schema.Initially our plan was to just implement a class B subnet for the whole network with certain ranges belonging to certain kinds of devices/machines/servers.Are there any cons to this? If so, could you link me to documentation that explains this?
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Nov 20, 2012
I have an exercise with picture you find below. The question is: Will the network shown in the diagram work correctly when you consider that the MAC-addresses PC0 and PC8 are the same, and why?
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Jan 20, 2012
I am in charge of a network that has two dns servers with directorys, one main and one for back up. I also have a cisco firewall.When I run a scan on my network, the scan results return clients that have two diffent IP addresses for one client or server etc.
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Jun 27, 2011
I have a DIR-615 rev C1 with the latest firmware (v3.13). I am trying to reserve all the IP addresses in my home network, which includes a printer, 3 computers, a network bridge to a PS3, the PS3 itself, an iPhone, and an A/V receiver. On my network setup page, I can see the MAC addresses under DHCP CLIENTS for the wired Win7 computer, a Win7 computer with a USB adapter, the PS3, the network bridge to the PS3, the iPhone.
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Oct 24, 2011
Is it possible to have more public addresses to more internal addressees? I have an internet provider which is in control of my router and he is telling me it is not possible. It's a Cisco router and I have static IP address.
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Aug 20, 2012
I'm planning to setup a network with more than 300 PCs. I know that using class C address is not enough to allocate number of IP addresses required. What I meant in the preceding sentence is that If I use this network address 192.168.1.0 (class C), it will allow only 256-2 = 254 IP addresses, What about other PCs in the network ?
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Sep 3, 2012
lost ip addresses and also says dns problems .how do i recover the addresses so i can connect to the internet
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May 25, 2012
We got a bunch of port-sec violations on port fa1/0/42. after checking logs, we noticed that the MAC address responsible for generating the alert was not one, but many.We asked the user, he said he only restarted his computer.The MAC addresses happen to be existing MAC on the network.How is it possible that a port-sec violation is made by many MAC addresses on the same port, successively?
Syslog message generated from device SW_Etage1: May 25 15:17:08 10.100.254.11 1454802: May 25 15:19:11.693 CET: %PORT_SECURITY-2-PSECURE_VIOLATION: Security violation occurred, caused by MAC address 6416.8dbb.930e on port FastEthernet1/0/42.
Syslog message generated from device SW_Etage1: May 25 15:17:29 10.100.254.11 1454805: May 25 15:19:32.874 CET: %PORT_SECURITY-2-PSECURE_VIOLATION: Security violation occurred, caused by MAC address 78e3.b58f.1011 on port FastEthernet1/0/42.
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Apr 21, 2013
When I try connecting via anyconnect the logs (and anyconnect messages) state the connection "cannot be established due to no addresses being available for SVC connection'". The group etc has a dhcp scope assigned, (and this was working for the past year). I'm not sure what config changes (if any) he made before leaving.
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Jan 23, 2012
I have multiple devices running on my home network. Every once in a while my wireless router starts playing up and I have to reset it.Whenever this happens, it changes the internal IP addresses of the devices. Is there a way to make the router keep the same internal ip address for each device? ie Laptop stays at 192.168.1.8I have a few forwarded ports for remote access to certain pieces of software, so each time the address changes, I have to go in and change these details, which is quite frustrating.
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Mar 27, 2011
Here is the question,"If an ISP purchased the following block of IP addresses: 200.23.16.0/20, describe and/or diagram how they would be able to divide this block of IP adresses into 8 subnets for resale. What are the number of hosts for each subnet?"
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Jun 22, 2011
Me and my girl friend both work from home doing freelance work using the internet. The company we do freelance work for allows one agent per ip address and checks the ip address for multiple agents I guess.I only have one modem, router, and two computers, but I believe they are on the same ip address.Is there a way to have two different ip addresses so we wouldn't have any issues with our work here?
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May 25, 2011
How would I connect hopes to router without getting ip addresses from linksys router , rather i want to get ip addresses from Server 2008 that can be done by DHCP server, in that case how would i disable ip addresses getting from linksys router? each time I connect new hopes to network those pcs should get ip address from Server how it can be possible.
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Apr 28, 2013
how to switch between my 5 new static IP addresses that I purchased (on a monthly basis now) from my ISP. I need them for my business so that I can send out more than the 1,000 emails per day from the one IP address to all of my customers which total a little over 1,500 now. Unfortunately I'm quite computer iliterate when it comes to understanding even the basics of computer terminology, etc. My ISP explained to me that if I purchased the bundle of 5 static IPs, then I could in essence send out 5,000 emails per day, which is plenty.
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Nov 15, 2012
I have various unknown Mac addresses on my network,detecting if they are normal/non harmful OR if I've been hacked! I've uploaded a picture of the addresses, the second to the last address is my router's.
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Jul 17, 2012
I want to turn off DHCP and setup static IP addresses, but have some questions about applying the information to my specific system.I have a Cisco Wireless Router, 1-wired computer (windows 7) and 2-wireless computers (1-XP and the other is Windows 7). I also have a dual wireless print server, a Roku box, a Wii, a Kindle Fire, and Vonage which is connected between my cable modem and router (this was the preferred installation method by Vonage).I have ran IPCONFIG /All and have all the addresses. My concern is what to use as a static address for my router first off, and then how I go about picking IP addresses for the computers and devices, and how to set then up both at the router and at the computer or device. Also, do I need any IP address ranges for any of this? I'd also like to make sure it would be possible to setup this system with the Vonage adapter connected between the cable modem and router as it's setup now.
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Feb 12, 2013
I noticed two ip addresses reserved with DCHP on my home wireless. From IP addresses I can't seem to figure out who these belong to at home. All connected computers and devices are accounted for. Could these possibly be someone(s) hacking to my wireless to connect to internet? Or are these for modem setup, etc.?
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Jun 11, 2012
I have 2 PC's networked via a gigabit switch. They are both running Windows 7 Ultimate 64-bit and are on the same workgroup.Addresses Of both - A: 192.168.0.1 , B: 192.168.0.2 , Both are on the same subnet 255.255.255.0.Can I have 2 LAN ports on the PC - "B" , with 2different IP addresses But connected to the same workgroup.I don't need the second port for accessing the PC-B or accessing any of its files or anything. But can 2 programs access each of these ports independently.
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Sep 30, 2011
I have been asked to do is locate some computers on the network and run a security scan on them. Well i pinged the host name and got an IP address. Then the network admin me look up the switch port that the computer is located on and so on. So i find 3 of the computers im looking for and when i get on the computer and look up the name but it does not match the name given to me. So i do an ipconfig /all and see that the computer has the right IP address and MAC address but not the same name. So my main question is, are these computers one in the same or is something messed up?
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Oct 12, 2011
how can i can all email addresses from my web mail box like gmail , hotmail , yahoo etc
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Mar 22, 2011
I have various unknown Mac addresses on my network, I need to detect if they are normal/non harmful OR if I've been hacked! I've uploaded a picture of the addresses, the second to the last address is my router's.
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Oct 31, 2012
I have bridged several w/l Tranzeo's together. I have given each of them an IP address on the same subnet as my gateway and manage the units using that addressOther than for management is the IP address of a bridge used for anything else? I have noticed that I can plug in any gateway address I like and the units are perfectly happy even if the phoney gateway does not exist.
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Sep 2, 2012
I play this hockey.tk game. I want to change my ip to a different nearby state. For example, If I live in new jersey i'd want to change my ip to New York so I can play the game. How do I change my ip to that? For some reason I got ip blocked on a game.. So I was wondering if there was any way to do that
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Jun 6, 2012
How do you resett an IP address for Win 7
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May 21, 2012
We've never had a problem setting up ASA to ASA or ASA to PIX vpn site to site tunnels using RFC-1918 addresses ( 10.x.x.x usually ). Now we have a customer ( a hospital ) that requires a public non-RFC1918 address to be presented to them. Since the addresses that we send are routable, they get routed through the internet instead of going through the tunnel. Here's the boiler plate from the customer:
"Important Note: The following information is to be used as a guideline in setting up a VPN connection between XXXX and your organization. Currently, XXXX supports only site-to-site VPN’s and all partners MUST present valid registered public IP addresses through the VPN tunnel.XXXX is unable to accept RFC-1918 addresses (i.e. 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16). We do not support PPTP, L2TP, or client VPN connections through a dialer application."
I was able to get a tunnel running between two ASA-5505 units using a public class C address that is currently not routable. How do I get this to work with a routable address? The tunnel will be carrying patient data and is basically a single server to single server link. It needs AES-256 and SHA-5 encryption but that shouldn't be a problem. The hospital is using a PIX, we are using an ASA-5510 with Security Plus license. We also have a couple of ASA-5505 units with base license to test with.
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Nov 15, 2011
We sold an ESW 540 switch to a 3COM customer that is replacing old equipment. This replacement will be on different faces so we have to interconnect some 3COM switches to the Cisco equipment. We are installing rigth now and this two situations:
Virtual machines can´t get IP addresses via DHCP (using a different MAC address) when connected to the Cisco switch. Physical machines receive IP addresses from DHCP without problem. This situation never happened with 3COM switches.When we interconect the Cisco Switch to the 3COM switches (not using uplink ports) the connection never goes up. Remembering that 3COM switches are old we fixed the speed to 100 Mbps Full Duplex but it didn't work.
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Feb 14, 2012
I need to put a few cameras, without a server, on a static WAN ip address. Do I just assign them a static LAN ip address(for example 192.168.1.200), make sure the port they use is open, then type the WAN static ip address then colon and the last address? Like this.....I'm making up the WAN address....45.34.55.334:200
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Dec 20, 2011
nslookup shows all ip addresses of a nic. is this expected? i think it should just show the default IP
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Sep 18, 2011
I have 192.168.2.1 and 10.10.0.1But i cant connect to 10.10.0.1 network from 192.168.2.1 network. What should I do to connect that both are same network I have a Linksys Router.
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Oct 8, 2012
Why do we need them? Could we leave the LAN with a subnet broadcast packet (for instance with an address of 192.168.1.255 /24). Are those addresses used for something?
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Aug 24, 2012
In case I configure duplicate IP addresses to the same VLAN(two interfaces in VLAN 1100 have IP address 192.168.2.2) I see following ARP messages rapidly(those six messages were received in less than 2ms time-frame)
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