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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6 views
trying to set dhcp fallback address but avahi-autoipd seems to be overwriting it
I added
timeout 10;
lease{
interface "eth0";
fixed-address 169.254.1.42;
option subnet-mask 255.255.0.0;
}
to /etc/dhcp/dhclient.conf
and this is what I get from ifconfig after doing ...
0
votes
2answers
46 views
Confusion in IPv4 addressing scheme and classfull addressing
I am relatively new to the field of computer networking. I am trying to understand the subject. I know that the question here might be outdated but I still need to understand "why", because I am just ...
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2answers
39 views
traceroute simple real time example
I am relatively new to the field of computer networking. I am trying to understand the subject. I know that the question here might be outdated but I still need to understand "why",because I am just ...
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1answer
32 views
practical example for the architectur of the internet
I am relatively new to the field of computer networking. I am trying to understand the subject. I know that the question here might be outdated but I still need to understand "why",because I am just ...
-1
votes
2answers
27 views
How do I keep my internal IP?
Whenever my router restarts (D-Link DIR-655, firmware v2), the internal IPs get scrambled among everyone connected, in the order they connect (and because everyone on the network is set to ...
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1answer
18 views
Geolocation database or api [closed]
Hi guys what is the best geolocation database out there? except maxmind because on some ip's isn't so accurate. And the html5 API isn't an option
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3answers
25 views
DHCP Reservation (MAC)
I've been having problems with a few statements I've been reading.
When setting up DHCP Reservation based on MAC addresses... Do the reserved IP's need to be in one of the scopes or not?
Judging from ...
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0answers
11 views
Isn't TTL value length too larg?
TTL value length is 255.I know sometimes when packets are waiting in queue TTL reduces without hop changing.But TTL is often equal to the number of hops.Isn't 255 too long?!Isn't 30-40 more logical?
...
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2answers
54 views
Is ip address unique to a user? [closed]
I don't have a great understanding of how networking works. From what I understand the WAN ip address which is visible to the outside world is different from thed LAN ip address. Inspite of that at ...
-1
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0answers
25 views
Strange route through private IP instead of ISP
After performing a traceroute this morning, I noticed my traffic is not passing through my ISP at all and just after my router there is a private IP address of 10.10.0.34 which I have never noticed ...
-1
votes
1answer
32 views
Can I have my web hosting company redirect all requests to an IP address? (from blahblah.example.com to 123.456.789.012) [closed]
I have a web hosting account, from FatCow. They gave me a subdomain, blahblah.fatcow.com. Would it be possible to simply redirect all traffic from that subdomain to my home IP address?
For example, ...
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1answer
37 views
Computer not connecting to wireless getting 169.254.x.x address
I have a computer trying to connect wirelessly to my network. All the other computers behind this router have a 192.168.1.x address, this computer is getting a 169.254.x.x address. I know that this is ...
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0answers
37 views
accessing server internally using it's public ip address [closed]
Accessing a server from internal pc using the server public ip address
public users can access the server externally
and internal user can access the sever internally using the server internal ip ...
0
votes
1answer
25 views
Firefox not requesting scripts from domains hosted at 127.0.0.1
I have 127.0.0.1 ajax.googleapis.com in my hosts file and a script listening (and dummy-serving) on port 80. When I load http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js directly, ...
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1answer
20 views
how to take subnet mask for an IP.
I am having difficulties to find the subnetmask for a given ip address.
I am reading one textbook and there i saw an example which i still dont understand how they picked up a subnetmask.
here it ...
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votes
1answer
32 views
Device is connected to network, but doesn't have an IP
I have a DroboShare (NAS drive) connected to my router (directly, not wifi), but the software that runs the Drobo couldn't find it.
I can access the drive directly by Start --> Run --> "\droboshare", ...
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votes
1answer
31 views
How do I setup DNS names and static IPs for an Ubuntu virtualbox?
I have Ubuntu installed on VirtualBox, on top of a Windows 8 host. How can I setup a static IP and DNS name for this virtual machine that other virtual machines will see?
1
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2answers
49 views
Is there any way to trace a facebook page owner IP? [closed]
I am in a country which limits political opinions I need to create a facebook page but first I need to know is there any way that someone can trace my IP ? In other words could I be busted ? Please I ...
0
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1answer
41 views
Get public IP from remote wireless access point [duplicate]
Is there a way to find out the public IP of a wireless access point in the "available networks" list without being connected to it?
-2
votes
1answer
28 views
How to change wireless carrier on a windows phone [closed]
How can I change the wireless carrier AT&T on a windows 7.5 phone, I have a sim card for telcel america everything works I get e-mails and updates from facebook but I can not surf the netor get ...
0
votes
0answers
24 views
Software evaluation-registration verification [closed]
I download the trial version of a latex editor, Bakoma. After 30 days of evaluation, I tried to install it on a virtual machine (VMWare) and use it.
But both surprisingly and not-surprisingly, it ...
3
votes
1answer
58 views
Relation between a packet and a frame over the network
I am learning how networks work and I have a question. What is actually sent over the network? A packet/datagram or a frame?
I believe it is a packet. If so, let's say Computer A wants to communicate ...
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3answers
175 views
How to make ssh tunnel open to public?
Well refering back to this question i am running the command ssh -R 8080:localhost:80 -N root@website.com on mac. Yet the port that is being tunneled is not working publicly. I am running such a ...
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votes
1answer
33 views
How to make my IP address appear to have a specific prefix (when connecting to a ssh server)?
I have ssh access to several machines at our university computing center, but they only allow connections from within university network which means I have to go on campus everytime I need to run a ...
3
votes
2answers
84 views
What could be the reason for a Windows System to have multiple preferred address?
While googling, I came across the following Question Multiple Preferred IPv4 Addresses, where the user reported that multiple IPs were shown as preferred. I found few other places where the same ...
1
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1answer
69 views
Extract ip address from specific NIC in win7 batch file
I am building a batch to automatically switch a proxy config and the related ip settings bui i am having trouble extracting the ip address of the network adapter i need. I have one "real" nic, and two ...
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3answers
53 views
Reserving DHCP address
I am working in a serviced office, where I do not control the DHCP server.
I have more than 3 machines that I need to have the same IP address after they get assigned. How would it be possible for me ...
2
votes
2answers
46 views
Why does ping sometimes decrease in a traceroute?
I've run a traceroute. (see image). The "Avg" column shows that on hop 7, the ping actually decreases between ping 6 and 8. This can't be due to an anomaly because this data is averaged over 24 ...
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0answers
147 views
How does iptables masquerading allow to access a different local subnet?
My Linksys router (IP 192.168.1.1 inside a /24 subnet) is connected to my ADSL modem (IP 10.0.0.138 inside a /24 subnet) to establish an internet connection via PPPoE. To be able to access the modem's ...
1
vote
2answers
100 views
Simulating multiple IP access
Is there any way to simulate multiple IP access for a particular app (my app) from one machine? I do create some interesting facts/reports based on client IP, which is not related in anyway to app ...
0
votes
1answer
30 views
My laptop can't find a device that is connected to a my router but my other laptop can find it
I have this device that uses port 80000 and UDP. It came with a program that communicates with it. However, my laptop (laptop A) can't find that device using the program. So I tested the program to my ...
3
votes
1answer
66 views
From where does IP geographical location data come?
I don't understand how some sites (e.g. https://www.ultratools.com/tools/geoIpResult)
show country and town for an IP address. For example 193.45.10.135:
Continent: Europe
Country: Germany
Country ...
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1answer
50 views
Remote connection with a public IP
I want to connect remotely to a friend's computer via remote desktop. That remote PC is not in the same network. I should connect through the Internet. I know, we should need a public IP address to do ...
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1answer
65 views
Enter Network Password [duplicate]
When I try to open shared folder in another computer, it opens correctly.
Ex : \\192.168.1.1\folder1
But When I try to enter \\192.168.1.1\c$ , it asks a Username and a Network password.
But that ...
1
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0answers
74 views
Is it allowed to Ping Backbones or other ISP Servers for a prolonged pingtest? [closed]
I made a few Ping tests until now, once I made it a whole week, but now I'm not so sure about the thoughts of the Admins which are owning the servers I ping.
Now, I have found a few posts which are ...
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2answers
97 views
How to circumvent a private WAN IP address?
I just signed up with a new ISP and I got a dynamic private-range (172) IP as WAN address on my firewall/router, so I can't do any port forwarding. They say that to do port forwarding I must buy a ...
1
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0answers
38 views
Advanced QoS on prioritized first packages set by ISP
I have the following problem my ISP (Fibertel from Argentina) accelerates, 'enhances' the first 6.8 megabytes of downstream transfer and it's seems the first 1.8 megabytes of upstream transfer.
This ...
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1answer
47 views
OpenVPN configuration
Preamble: I am lucky to have an IP subnet which has real IPs, so no NAT. I have a network from 1.2.3.0 to 1.2.3.128.
I have a Debian server with an eth0 interface say 1.2.4.9. Now I want to have an ...
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2answers
57 views
Splitting and connecting a small subnet
It's been a while since I built out a network so bear with me as I've lost some of the nomenclature.
Given "5" usable static IP addresses from our ISP is it possible to use 3 of them for globally ...
0
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1answer
53 views
How to create local network in virtualbox between Ubuntu server
I created a Ubuntu server on virtualbox that Ubuntu server install with minimal virtual machine.
I created the three linked clone and I have internal network between them. I removed ...
1
vote
3answers
149 views
Can we use public IP addresses on private networks?
Think, there are two computers which use two private IP addresses to connect each other. They don't connect to a router so there's no NAT in here. Just peer to peer. But I want to know, can we just ...
0
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3answers
92 views
I should have a dynamic IP, but it won't change
I have run ipconfig /all, which tells me DHCP is enabled, meaning I should have a dynamic IP address. However, no matter how many times I restart the modem, I end up with the same IP address. What am ...
0
votes
1answer
100 views
TCP\IP Packet Signature - how to identify such data packets?
I know of a program that can "carve" (look for) TCP IP Packets from raw binary data. The results it presents are the source and destination MAC addresses, the source and destination IP addresses and a ...
10
votes
7answers
671 views
Is it possible for many domain names to share one IP address?
Is it possible for many domain names to share one IP address? For example, www.xjtl.com, www.fmie.com, sdmfl.com, etc.
Hundreds of domain names share just one IP – when you do a DNS query for each of ...
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1answer
40 views
Mulitple ISP IP's pointing to one router
My ISP is providing me with two dynamic and one static IP.
My question is: How is it possible to have three IP's, but i only have one router?
Or is it that i can only have a static or a dynamic ip ...
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0answers
20 views
GNU/Linux: Make bad connections usable
I have recently been traveling. On my way I experienced 3 different
bad connections:
Long latency (1000-10000 ms with around 10% loss)
High packet loss (50% loss)
Connection flapping two hops from ...
0
votes
1answer
36 views
See which dns addresses link to your ip?
I have a server on an IP with one dns listing pointing to it. Is there any ways to see which urls are set up to go to this ip. Also, is there a way to prevent people from setting up dns listings that ...
7
votes
3answers
246 views
How do routers assign IP addresses?
How does a router assign an IP address? Is this random or is there a set method?
It seems that the same device – regardless of the time it was connected – seems to get the same IP assigned. Does the ...
5
votes
3answers
944 views
What's the difference between 127.0.0.1 and 127.0.0.0
I know that both are loopback IPs, but they have another ip mask.
What's the difference between them? Can they be used interchangeably?
...
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3answers
64 views
Finding IP address of a PC when it changes by making some setting
I have a shared PC at a remote place on the LAN. I usually work on it using remote desktop connection. Sometimes the IP address of the PC gets changed when someone accidentally or intentionally ...
