All Questions
101
questions
3
votes
2
answers
2k
views
Want to know the local IP address assigned to me by my ISP
I use a TP-Link router (3420) to connect to my ISP.
My local IP address is 192.168.0.22. The ISP uses DHCP and the router shows the range of it 10.19.xxx.xxx. Sites like whatismyip.com show the ...
- 41
3
votes
2
answers
3k
views
Why won't my DHCP addresses "stick"?
I've been having some addressing issues that I've been unable to solve, and I'm hoping I can get some guidance about other things to research.
Service provider is Time Warner cable. A static IP is ...
- 1,799
3
votes
1
answer
10k
views
Ethernet connection shows unidentified network with no internet access
For years I've used a physical Ethernet connection for my internet access, then a few days ago it went down and said it was an unidentified network with no internet access. I dug out a wifi card and ...
- 356
2
votes
3
answers
7k
views
Why the IP address of the router is used as the address of the dns server?
These are the steps for converting a router to dhcp:
Why used the router IP as the DNS server IP address in the last case?
Should not use the IP address of servers like Google (8.8.8.8)?
- 514
2
votes
4
answers
57k
views
Getting strange IP Address from router
I've had a router set up for quite some time and it has been working perfectly. My wife called me to tell me the wireless internet wasn't working and when I came home I saw that my phone was connected ...
- 58
2
votes
1
answer
299
views
Laptop accessible on the same IP via wireless and wired connection?
I have laptop which I sometimes connect to my LAN via wireless or wired connection (addresses are assigned via DHCP from the same subnet). I wonder how to setup common IP address on Ubuntu 20.04 to be ...
2
votes
3
answers
1k
views
how to connect to different WI-FI with static and dynamic IP addresses?
How to connect to different WI-FI with static and dynamic IP addresses?
I have any user with loptop that connect to Wi-Fi inside Co and I set static IP for them
But when users go to their home and ...
- 21
2
votes
1
answer
2k
views
Prevent networkmanager to disable an interface if dhcp timeout when mixed dhcp and fixe ip configuration
I need to find a way for a computer to have both a fixed ip address AND have be a dhcp client on the same interface. So far it works great, I am using Debian 11 and NetworkManager.
The problem, is ...
- 301
2
votes
1
answer
50
views
Networking subnetting
I have a quick question I'm trying to set up my router DHCP server to have as many leases as possible so I'm trying to change its settings.
At the moment it's set like this:
Lan IP address 10.10.0.1
...
2
votes
1
answer
3k
views
Find unknown static IP without DHCP enabled or gateway configured
I have a device with a static network configuration (DHCP client not enabled).
I don't know the IP address or subnet mask of the device. I only know the MAC address.
The gateway is not configured (0.0....
- 21
2
votes
1
answer
110
views
On boot, how can I switch to a static IP based on a gateway IP provided by DHCP?
I have a "headless" *NIX host -- let's call it 'foo' -- that is to be accessible via SSH and VNC-tunneled-over-SSH on an arbitrary 192.168.x.y/24 private LAN. Sometimes, I want to physically move 'foo'...
- 178
2
votes
3
answers
1k
views
IP Address conflict in a LAN
How to find if someone has taken a particular IP address in a Local Area Network? Or in a more generalized form, how to find the list of IP address that DHCP has allocated in a Local Area Network?
- 23
2
votes
1
answer
861
views
Is it possible to use DHCP to obtain default gateway and DNS server only?
I have a few VMs which I want to keep with static IP addresses. However, I run those on my laptop and frequently connect to different networks which use different default gateway and different DNS ...
- 983
2
votes
1
answer
271
views
Reliable cross-platform way of determining hostname from IP address
Within the DHCP table of a router, clients that have sent their network name are listed with IP and MAC addresses. I need a way to get the host names that clients have sent. The router does not store ...
- 151
1
vote
3
answers
414
views
How to retain a unique IP on a client with a static IP in a DHCP subnet?
When I say DHCP subnet I mean that the clients are intended to receive their network configuration via DHCP, not statically.
Let's observe the following situation:
I set up an IP address statically,...
