An IP address is a unique network-level identifier assigned to a network-enabled device.

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14
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2answers
10k views

Mac OS X: Please explain ifconfig output?

When I do ifconfig on my Mac, I get a list of the following interfaces: lo0 gif0 stf0 en0 fw0 en1 vmnet8 vmnet1 I wonder what each interface is. Also, which of these is the IP interface ? I don't ...
2
votes
3answers
2k views

Connect to {MACHINENAME} from iPad

I have a website in development running under IIS 7.5 on a Windows 7 machine. From my PC, I can browse to the site via: http://localhost/mysite http://mymachinename/mysite ...
0
votes
3answers
5k views

IP “Address Book” of Countries [closed]

I'm looking for a list, 0-255, which tells the country by the first byte of an IP address. for example 81.0.0.0 here 81 is a country code which I need to know.
1
vote
1answer
945 views

Unable to access bbc.co.uk - “Error resolving hostname www.bbc.co.uk: timed out” - possibly proxy related

I'm having some problems accessing bbc.co.uk. Each time I try I receive the error message: **Connection Error** Unable to connect to the requested site. **Details** Error resolving hostname ...
0
votes
2answers
316 views

Can I disable warnings about IP conflicts?

Running Windows 7 x64 Ultimate. I travel with my laptop back and forth between home and the office, and usually hibernate as opposed to shutting down, so I do not need to reopen all the documents and ...
1
vote
1answer
672 views

Strange LAN failure: what possible cause?

My home machine is intermittently failing to send data (via ethernet) on my LAN. There is a 4 port wireless router, with 3 other devices that are working fine. I've tested two of them with ethernet ...
1
vote
2answers
956 views

Should I use the same IP address and hostname in each OS for dual boot machines?

On my home network I have both a desktop PC and laptop that dual-boot windows/linux. I assign static addresses to all my computers (I have other single OS ones as well). I want to know whether it's ...
0
votes
2answers
1k views

How to filter out information in Wireshark

I am not interested in any information about network activity from any address that starts with 192.168. How can I make Wireshark hide those?
0
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1answer
1k views

tools to hide ip and mac address

Are there any fast and free software to: Hide my IP address without proxy server as it changes the layout of the web site and makes it not fast at all. Dynamic MAC address generator to change it ...
2
votes
2answers
3k views

Can't get IPv6 address using radvd on wireless interface on windows, wired works fine

I set up my router to use OpenWRT and set it up to use IPv6 using a tunnel form SixXs. I'm having problems with stateless autoconfiguration using radvd. On my computer, wired connection can get its ...
8
votes
9answers
2k views

Tracking my home IP from anywhere on the internet?

I have an ISP that serves semi-permanent IPv4 addresses. They can't promise fixed IP addresses, but unexpected changes are quite rare. This begs me to ask however: what would be the easiest/most ...
7
votes
3answers
1k views

Why do the IP addresses randomly change?

I have a network with the following: Cable modem with static IP address Router Desktop - Win 7 VM Host - VMware ESXi 4.0 A couple of VM Guests - Windows Every now and then my Win 7 PC is unable to ...
2
votes
4answers
3k views

How to find out what computers are connected to an access point/router using Linux terminal?

I would like to determine what computers are currently connected to my access point/router via the command line in Linux. How can I do this?
0
votes
1answer
936 views

Dynamic to static internal IP address (Snow Leopard server)

I purchased a new Mac mini server, since my old iMac, which was a server pretty much died. My problem is this. How do I change my internal IP address for my mac mini server to a static address, like ...
27
votes
3answers
59k views

Why is Windows' default IP address 169.xx.xx.xx?

My Windows system got an 169.xx.xx.xx IP address the other day, and I fixed the issue, but why did Microsoft chose this address as the default? Why not 1.xx.xx.xx or 255.xx.xx.xx? Did one guy at ...
0
votes
4answers
6k views

Change IP address of the network card?

How can I change IP address of my network card which have an odd IP address 169.254.57.200 which is not known by my router? My router has IP addresses 192.168.0.2 - 168.168.0.254 I have problems with ...
10
votes
3answers
8k views

What is the maximum number of IPs that can be assigned to a given computer?

I really need to know this for a linux server, but since it also applies to client OSes, I figured the question should be posed here instead of server fault.
1
vote
1answer
15k views

Adding localhost entry to Windows\System32\drivers\etc\hosts file with port number

I have set up a local site under IIS 7.5 under port 900. to access it I should type localhost:900 in the address bar. I'm a little bit familiar with the System32\Drivers\etc\hosts file and I know I ...
1
vote
1answer
4k views

Outlook 2010 Block Email by IP Address

I have Outlook 2010. Is it possible to block incoming email using its IP Address? I have had a look at filters and the Junk Emal settings, but cannot find a specific IP Address filter. Question: ...
3
votes
3answers
720 views

Wireless router's ip address

Does my wireless router have an ip address that's independent of my computer's ip address? Is there any way to determine what that ip address is? Note: I'm not talking about the internal router ip ...
2
votes
3answers
4k views

How to bind IP address to MAC address in Windows XP?

I want to bind IP address to MAC address on my computer, how to do it?
0
votes
2answers
2k views

DD-WRT WAN IP Address Lease Time

Is there a way to reduce the lease time of the WAN IP address in DD-WRT? It seems like this should be an easy setting to find, but I'm not seeing it anywhere in the settings.
4
votes
1answer
15k views

Get Hostname from IP address/MAC address

I have a list of IP addresses and MAC addresses connected to my local network, but I need to get the hostnames of each device, is there a command line or terminal (mac) command for this?
1
vote
2answers
353 views

Setup router with 1-1 NAT

How do you setup a router, or if possible the Linksys WAG160Nv2 router to 1-1 NAT. I am asking this as i will like to give one of my LAN computers a Static "External" IP (which i've got from my ISP) ...
1
vote
1answer
541 views

How does tumblr point to your domain?

Lets assume I have a tumblr account: http://sheehan.tumblr.com Tumblr allows it so that it can point to www.sheehan.com if I enter an A-Record. How does Tumblr scale this to millions of users? How ...
5
votes
7answers
9k views

Make dynamic IP address fixed?

I am using Time Warner cable internet service. My IP address changes every couple months. However, I need to access some access limited servers which has firewall rules on it. Is there any way to ...
2
votes
1answer
7k views

How can I allow a Limited User to change TCP/IP settings, while strictly maintaining the principle of least privilege?

In Windows XP or Windows Server 2003: I have a laptop configured with software for network-based vulnerability scanning of systems. The reason this is put on a laptop instead of a desktop or server, ...
1
vote
2answers
7k views

Mac change ip address from terminal

I want to change my ip address from terminal in mac. So i used the following commands. ifconfig en1 192.168.110.1/16 route add default 192.168.110.1 if i change the ip here. It is getting reflected ...
0
votes
1answer
2k views

Can I learn someone's IP address by Skype text chat?

It may be possible to learn on voice or cam conversation but is it possible by text chat? If so how can I?
1
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1answer
230 views

IP Address Changing

How can I go to the same website but use a different IP address every time? Does TOR do this? I want to access a site but not have it know that the same IP is hitting it everytime. TOR or ...
-1
votes
1answer
2k views

Get a user's current IP address from Skype

This is assuming that you (/police/ISP) can get the [rough] location of a laptop based on IP address. If your laptop is stolen, and the thief unwittingly connects it to the Internet, and you have ...
1
vote
4answers
12k views

How to find out ip address of router

How can I find out what IP my router on my local area network is using?
8
votes
9answers
14k views

Can ping fine but no browsing

I've got a laptop which has a verified internet connection. I can ping www.google.co.uk and receive a response no problem. However IE, Chrome, Firefox, MSN messenger cannot connect to the internet. ...
12
votes
7answers
37k views

What regular expression can I use to match an IP address?

With the following grep syntax I want to match all IP address in a file (from a ksh script) grep '[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}' file The problem: It also matches words ...
2
votes
1answer
813 views

What is the purpose of the network id?

I know that for addresses like e.g. 192.168.17.5 with 255.255.255.0 subnet mask, address 192.168.17.0 is the network id and 192.168.17.255 is the broadcast address and that valid hosts are from ...
2
votes
5answers
9k views

Can you have a class C IP address with a subnet mask of 255.255.0.0?

Can you have a class C IP address with a subnet mask of 255.255.0.0? What happens when you have a setting like this?
0
votes
2answers
71 views

how to broadcast/multicast a service over the network for clients to discover without any need for server IP

how to broadcast/multicast a service over the network for clients to discover without any need for server IP? how to let other clients discover the service from a server, without the client requiring ...
0
votes
1answer
4k views

Block incoming traffic from specific ip address

How do I block incoming connections from a specific IP address in Windows XP without installing a firewall? I've found this: http://www.ehow.com/how_5038640_block-ip-address-windows-xp.html But I ...
0
votes
3answers
509 views

How to find the next IPv6 address in a sequence

I have a /96 block of IPV6 addresses and i'm wondering how i could some how find the next address (Since ipv6 addresses can contain numbers and letters). I know the first address could be in numbers ...
1
vote
4answers
2k views

Should I use VPN to Remote Desktop from outside my home?

I want to access my home computer from my work. Should I use a VPN network setup and make a RDP connection then? Or is it possible to use RDP by typing in my ip-address without VPN?
0
votes
1answer
143 views

Duplicate IP Adresses [duplicate]

Possible Duplicate: Duplicate IP Adresses My roommate and I have a problem. We have the same IP address. This started a few days ago and I don't know how to change the settings, preferably ...
5
votes
4answers
685 views

Duplicate IP Adresses

My roommate and I are experiencing a problem in that our computers have the same IP address. I have a laptop and he's got a desktop, and only recently did this occur, in the past day or two. Is there ...
2
votes
4answers
1k views

How to find out an unknown PC Server's IP without Monitor

I have a PC Server running but without a monitor. The OS is Windows Server 2003. I can connect my laptop to its network interface. How can I find out its IP?
3
votes
3answers
2k views

Ping [computer] get strange IP address

On my local network, I have multiple computers that I connect to. I don't typically remember the IP address nor do I care. This morning, I went to RDP put "Sam" in the field and pressed enter. It ...
0
votes
3answers
6k views

How do I change my system's IP address?

I need to test my application when there is a change in the IP address. What should I do to change my machines IP address? Note: The IP address for my machine is obtained automatically. It's not a ...
3
votes
4answers
2k views

How often do users change their IP address (average time needed)?

Basically, i need to know how long (on average) and ip address is used per user, this can be US-only stats or World-Wide stats, if you have a source please state it. If its your own data please let us ...
3
votes
1answer
2k views

Could you help me to understand netstat output?

I am trying to figure out how to get IP of a suspicious access point I am using to access the internet. Running netstat, I get the following: $ netstat -rn Routing tables Internet: Destination ...
3
votes
3answers
1k views

How to troubleshoot DHCP problems?

This question was originally titled "How to gather information about suspicious wireless access point?" but then this topic has been moved to another question, leaving here discussion of connection ...
1
vote
3answers
2k views

How can I hide, spoof or mask an IP address? [duplicate]

Possible Duplicate: Make my IP address appear to be from another country Several friends said they have done it with a proxy address. Is there a quick/easy way of doing it without having to ...
-1
votes
2answers
4k views

How to change a static IP to a dynamic or at least change it?

I have a static IP address and I want to change it or convert it into a dynamic IP address. How would I do this? I'm using a Linksys router and running Mac OS X. Thanks! FW_Alex