All Questions
Tagged with broadcast networking
24
questions
0
votes
1
answer
37
views
How to simulate Hercules on local IP address?
I would like to simulate a TCP server, using Hercules (by HW-Group).
When I configure the port (12714), netstat -aon | findstr "12714" shows me this result:
DOS Prompt>netstat -aon | ...
- 2,283
1
vote
0
answers
623
views
Cannot receive UDP Broadcasts from different subnet addresses
I have setup an independent network (that is not connected to any other devices) with four devices each of which are on a slightly different subnet. There is just a hub with the four devices connected ...
- 111
0
votes
0
answers
67
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forwarding subnet broadcasts in a small test environment
In my test lab I have a small, inexpensive, unnamed router to create two subnets, 12.1.1.0 and 172.17.2.0. The router is configured in Router mode (not Bridge), and I have a bridge defined that joins ...
- 101
2
votes
0
answers
202
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How to forward or fake device discovery broadcast replies
I have an IP camera which I wish to view remotely over the internet. Unfortunately the cloud service for this camera is no longer available nor does it support streaming standards for 3rd party use.
I ...
- 3,134
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
3
votes
0
answers
2k
views
Synology NAS Hibernation issues due to SMB broadcasts
I'm another user going around this merry-go round again. I purchased a Synology NAS DS718+, installed Plex and Docker (calibre-web-server), and have found the NAS is never sleeping.
After looking at ...
- 143
0
votes
1
answer
308
views
Receive UDP packets from multiple broadcast servers
I have two sensors which broadcast their data using UDP. I configured them to use different ports.
If I connect only one sensor, I receive the packets using nc -ul port without any trouble.
If I ...
- 101
2
votes
1
answer
4k
views
When is the broadcast MAC address and broadcast IP address used in a network?
I know that to discover the unknown details (IP/MAC) in a network the broadcast address is used. For example: DHCP client broadcasts request to get network detail from DHCP server, one host gets MAC-...
- 35
1
vote
0
answers
187
views
What happen underneath when I type 255.255.255.255 in web browser?
I've learnt that 255.255.255.255 is broadcast address, then I'm curious what happen underneath if a web page element src is http://255.255.255.255 or I type 255.255.255.255 in url bar, will it ...
- 445
0
votes
1
answer
2k
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Why don't all computers show in Net View?
This is for a Windows environment.
Either in a workgroup or domain environment, why don't all computers show up in Netview or Network (via Explorer)? Assuming all computers are online and pingable, ...
- 209
2
votes
0
answers
754
views
Directed broadcasts to other than own IP subnet are received until socket shutdown - why?
My two hosts reside on the same Ethernet segment. Host A is 10.1.0.1/16, host B is 10.1.0.2/16. A sends directed UDP broadcasts to 10.1.255.255 and a UDP listening socket bound to INADDR_ANY on B ...
1
vote
0
answers
298
views
Why change the IPv4 default broadcast address of a particular network?
Some operating systems allow the user to change the broadcast address of a network, e.g. in Linux this can be done by using the SIOCSIFBRDADDR ioctl.
Why is this necessary? In which scenario would an ...
- 111
2
votes
1
answer
11k
views
Block ARP requests (or broadcast message, if possible) from A SPECIFIC HOST in a subnet
My ISP provide username-password for authentication and also register the client's MAC address for authentication.
I am concerned about someone misusing my connection while I am not using it. ...
- 711
1
vote
1
answer
2k
views
Address LAN computers by name over Open VPN
Using OpenVPN client on Windows 7 laptop to access my home network. Workgroup on the laptop is "MyWorkgroup".
Home network:
Wifi router on 192.168.1.1 - Linksys EA6500 with USB hard drive plugged ...
- 11
2
votes
2
answers
93
views
Is this subnetted IP address valid?
I'm learning subnetting at the moment and I'm unsure whether this is considered a valid IP address.
150.16.5.255/21
My teacher asserts that this is invalid because it is a broadcast address of one ...
- 23