The IP (internet protocol) is a protocol for transmitting data over packets ("datagrams"). It is the primary protocol of the Internet. "IP" may also refer to an IP address, the numerical address assigned to an IP-capable device.

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point multiple ip address to hosting

I have centos server, earlier it had 1 ip [ a.b.c.d ] (external ip , eg., 141.101.114.59). Now, I bought 2 additional ip [b.c.d.e , f.g.h.i] (external ip , e.g, 190.93.244.58 , 130.93.245.8 ). I have ...
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11 views

Remote WOL over CISCO/FW not Forwarding

I'm trying to accomplish a Wake-on-LAN by triggering the two servers' public IPs. Internally, the WOL works like a charm (by either the internal or external IP), externally however, it does not wake ...
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1answer
12 views

Windows Server - Bridge ip address of different subnets

My Windows Server 2008 R2 has two network cards which are connected to physically separated networks. The Adapters have the following IP settings: LAN1 IP: 192.168.2.1 (Netmask 255.255.255.0) LAN2 ...
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2answers
23 views

If two computers use the same VPN can they be targeted with local IP addresses and avoid port forwarding?

If I am using a VPN and my friend is using the same VPN and has some program listening on a specific port on his computer, can I access that computer and port with a local IP address instead of having ...
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2answers
49 views

What is the IPv6 equivalent of 192.168.xxx.xxx? [duplicate]

I have a server which responds differently to requests from the general internet as opposed to the intranet. For IPv4 I can simply check if the address begins with 192.168. This works for my needs. ...
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17 views

Script or tool to browse several ip-adresses [on hold]

I'd like to be able to browse all ip-addresses in a range (say 192.168.x.0). I've used some network discovery tools, but 3 switches don't come up. I'd like something that browses to all 255 addresses ...
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3answers
39 views

Pinging ip address on another interface than the one receiving the signal

I have PCa and PCb. PCa: $> ip addr && ip route 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default link/loopback 00:00:00:00:00:00 brd ...
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1answer
42 views

Can't ping from my office to my home PC

Usually, I used TeamViewer to control my home PC and my office iMac both ways. But TeamViewer doesn't work sometimes. In this case, from my home PC to my office iMac, I used UltraVnc (on home PC) to ...
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1answer
21 views

Does a bridge between 2 TAP interfaces need an IP address?

I am trying to setup openvpn on a machine so that I have 2 different tap interfaces (tap0 and tap1) and then a bridge connecting those interfaces. The openvpn is setup with a server-bridge ...
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3answers
51 views

Static IP without a static IP

I need my network to have an external facing IP address that is static. My ISP will not provide me with one. I know I can use use DDNS to achieve this in a way. I want to setup an Exchange server ...
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1answer
31 views

How may I host a website on my local IP? [on hold]

I am trying to design a web page. I want to assign the URL for it of my machine's local ip,i.e., http://192.xxx.x.x. If any may kindly suggest how may I have to do it? I prefer to use Python2.7+, ...
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2answers
44 views

Is it possible to get a router’s IP address from a Wi-Fi signal?

Is it possible to get a router’s IP address from a Wi-Fi signal without having to connect in, given that it's broadcasting Wi-Fi, but requires a WPA password?
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25 views

Hyper-V, Subnet Masks, External IP Addresses, Hetzner

I am pretty new to this so I am going to try and explain this as best as I can. All Servers I have dealt with in the past have always had an internal IP address, the external access has always been at ...
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1answer
21 views

Getting list of connected devices and types to a network without connecting

I'm using kismet to get a list of networks nearby and all the devices that are connected to them. I can get the MAC address off these devices, but I was wondering if it was also possible to get the ...
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2answers
26 views

When is an IP replaced in routing?

If I have 2 networks, 192.168.1.0/24 and 192.168.2.0/24, and my IP is 192.168.1.2 with the following routes: Destination Gateway Genmask Flags Metric Ref Use Iface default ...
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2answers
33 views

How to restore my default DNS?

I hanged my DNS servers to 8.8.8.8 in order to fix my web browsing (it worked). My coworkers want me to change it back, but i didn't save it! Is there any way to restore my old dns settings? I'm ...
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1answer
18 views

What software can I use to invert txt list IP-ranges? (not a reverse DNS lookup)

This is a blocklist, but I want to have only IP in the list to be allowed. instead of: 1.2.3.5-1.2.10.20 2.2.3.5-3.2.100.20, i need: 0.0.0.0-1.2.3.4 1.2.10.21-2.2.3.4 3.2.100.21-255.255.255.255. ...
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0answers
33 views

static IP not saving in LAN properties

static ip is not saving int lan tcp/ip properties i.e once I enter a static address with subnet mask, default gateway Etc.. it accepts the details, but then I close the dialog and when I come back in ...
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1answer
28 views

Public ip address showing in Hong Kong

It seems that my range of ip address are all showing as if they are in HK. For example, when I use google search, I am stuck on the .hk search site and it is extremely annoying. I also host a email ...
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2answers
56 views

How do I permanently assign an IP address with DHCP?

I am wondering if there is anything (software or hardware) out there that can do something I think I may have made up, Dynamic Static IPs. The idea is that when a new device connects to the local ...
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3answers
30 views

Will home router retain dynamic IP?

The cable from my ISP is connected directly to my computer. Problem is I have a dynamic IP address that changes every time I disconnect and reconnect, otherwise it will not change by itself if I stay ...
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5answers
752 views

How to check public IP address availability

I have a few public IP addresses given by the ISP service provider. My question is how to check which IP addresses are already used up and which are still available to use for new servers? Because I ...
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1answer
28 views

How can I add some static IP address at IPv6 for Windows 2012 DHCP server?

I would like to add some static IP address to my Windows 2012 DHCP server. I have tried to pair the IP address with its MAC address. At IPv4 it works, but how can do it at IPv6? Could anybody link a ...
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1answer
23 views

How to change IP of VPN interface?

I have connected to a VPN on Ubuntu. and type ifconfig shows VPN interface has an IP of 10.10.0.11. Unfortunately, there is another computer in my lan whose ip is also 10.10.0.11 and they're ...
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4answers
83 views

How to prevent computer from taking some IP address

Imagine you got a network to which other users can connect with their PC's, you have set up some rules, for example there is a DHCP server that gives addresses 192.168.2.100 - .254 and first 100 ...
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1answer
22 views

Forwarding requests to my external IP to a different IP

When I connect to my external IP in linux, it gets forwarded to my gateway (router). But I need to run a server, so I need to be able to forward requests to my external IP to my computers ip address. ...
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18 views

Wamp, Route External IP to one file and Internal IP and Localhost to Wamp HomePage

So I recently downloaded WampServer and was wondering if there would be away for me to be able to route my external IP address and my internal IP address, along with Localhost, to separate locations. ...
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6 views

Find My Phone - iCloud - Device Location - Locked [migrated]

My girlfriends computer was stolen this morning. She has Find My Phone installed. I'm tracking it from work, but it has a status of locked. (I'm assuming apple put this on when she called, and ...
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2answers
20 views

Webserver access from Outside Network

I have a Watchguard firewall router with a public IP address and I have a web server in my internal network (192.168.1.5) and i have a domain name (http://www.forexample.com). We can access to to our ...
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2answers
30 views

Does a typical home router support classless IP address?

All typical home routers I know of allow us to set a custom subnet mask, and because of this, I am really curious about whether they support the use of classless addressing scheme, meaning that in the ...
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2answers
27 views

default gateway based on IP?

yesterday I decided to try something extra at my job (volunteered to do so) I decided to manually add a computer and assign it a private ip address netmask and default gateway. On a normal at home ...
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54 views

Nslookup works but ping fails

I've recently ran into this weird problem where the domain names fail to resolve from DNS. When I try to ping google.com, I get ping request could not find host google.com, but nslookup returns the ...
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1answer
31 views

Anoymous ip route on my server

After typing "route -n" on my server, i figured out these lines 1.0.104.156 - 255.255.255.255 !H - - - - 1.9.22.84 - 255.255.255.255 !H - ...
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2answers
36 views

Given the IPs of all on my network, how can I find their computer names? [duplicate]

I obtained a list of all IPs in my network with fing (linux package for analyzing networks). How can I obtain the names of the machines? And maybe could I obtain the OS too?
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How to setup WDE-4220B ip video encoder?

I have WDE-4220B MPEG-2 Encoder with IP Output. Can anyone explain how should the setup/installation of this encoder be done? Obviously there is a software to use but I even don't know how to setup ...
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0answers
15 views

Router sees WAN, but is unable to access

I have a network setup that I believe is pretty simple. One desktop that feeds into a DIR-615, which them feeds into the modem that was given to be by my fiber ISP. Checking on the setup screen, I'm ...
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connection speed gets slow when using ip address but fast when using domain name

I have a web server and recently i changed the ISP for my home. after then, when i tried to connect my web site(admin pages) by ip address of the server, it takes considerably long time to load the ...
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1answer
48 views

Does a host re-order fragmented IP packets received out of order?

Host A sends a 1400 byte IP packet to Host B over an Ethernet and PPP link. The PPP link has an MTU of 532 bytes, which means that the IP packet will be fragmented into 3 smaller packets. Fragment 1 ...
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1answer
27 views

Keeping en0 down while I change IP address mac

I have a DHCP server which assigns myself a new IP address. What I'm wanting to do is power down the wireless adaptor, then change the ip address manually. What's happening is as soon as I set the new ...
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1answer
40 views

Why did the designers of IP Choose the IP Checksum? [closed]

Why did the designers of IP (and UDP and TCP) choose to use the IP checksum to detect errors rather than a more robust error detection code such as CRC-32? I previously thought the IP checksum was ...
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0answers
46 views

A particular IP address stops working on the network

I have a small network with a cisco linksys E2500 series router and few Access points to help with wider wireless coverage. Recently, I notice that a particular IP adderess on my network suddenly ...
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0answers
20 views

Shrew Soft VPN Configuration - manual topology

I have configured Shrew Soft VPN Client 2.2.2 with option "Obtain Topology Automatically or Tunnel All" checked (Policy tab). It's working, but I cannot access the Internet through my regular ...
1
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1answer
45 views

Local Network DNS

I have 3 computers on my local network, A B and C, all running Windows 7. They all have the same network configuration which uses my Netgear router for DNS. I am trying to access them via my Android ...
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1answer
28 views

How to assign my machine static IP of a different VLAN

Imagine a user is on VLAN1 that dynamically gets an IP, and there is a VLAN2 that the users on VLAN1 cannot access. Is there a way to assign the machine of user on VLAN1 an static IP in the range of ...
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35 views

Forward all traffic from one Linux interface to another?

I have a virtual ESX interface "eth1" that I want to act as a gateway for connections, and then route all of the traffic from these connections out of my "eth0" (WAN) interface. Here are my ...
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2answers
74 views

Duplicate IP address Telnet and ARP

I have 3 hosts (PC1, PC2, and PC3). I set the IP addresses for PC2 and PC3 to be 10.0.0.2 and PC3 to be 10.0.0.1. I telnet from PC1 to 10.0.0.2. I then am logged in to PC3. I can see in Wireshark that ...
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2answers
47 views

Is my network traffic really routed abroad if traceroute says that my traffic is routed through servers with foreign IP addresses?

My ISP is owned by a company that resides in our neighboring country. I have noticed that when I do a traceroute to a server that I know is placed in the same country as I live, I can see some hops ...
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2answers
27 views

Debugging access to local FTP server from beyond router

I am trying to set up an ftp server attached to the router, it isn't working for external access only local access so I am trying to debug the cause. Currently I can ping my router's LAN and WAN ...
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19 views

Destination Host Unreachable from own IP error / arp table not showing gateway IP

One of the Newtwork PC (PC A) giving “Destination Host Unreachable from own IP” error when pinging the another network PC (PC B). I have checked the arp table of PC A and it isn’t showing gateway ...
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1answer
73 views

My home IP (supposedly) was involved in a DDoS attack

There did not seem to be any SO community dedicated to computer security, so I'll ask here... As the title implies, my home IP (supposedly) was involved in a DDoS attack. I got a phone call from a ...