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Can 2 services use the same port?
For TCP, no. You can only have one application listening on the same port at one time. Now if you had 2 network cards, you could have one application listen on the first IP and the second one on the second IP using the same port number. For UDP (Multicasts), multiple applications can subscribe to the same port.
What does it mean to be on the same subnet?
It means when two IP addresses have a subnet mask such that the addresses share the same network address and broadcast address. For example: 192.168. 0.1/24 and 192.168. 0.254/24 are in the same subnet because of the /24 subnet mask.
Can multiple threads listening on same port?
Multiple servers (processes or threads) can bind to the same port if they each set the option as follows: With TCP sockets, it allows multiple listening sockets—normally each in a different thread—to be bound to the same port. Each thread can then accept incoming connections on the port by calling accept().
Can two UDP sockets same port?
2 Answers. The only way to associate multiple sockets with a port in TCP is by listening and then accepting. The purpose in that case is to give every incoming client a unique socket so as to keep their byte streams separate. You don’t need that in the case of UDP because there are no byte streams.
Can two interfaces have same IP?
You cannot use the same IP address on multiple interfaces. It just won’t work properly (usually it will only work on the last interface the IP was assigned on). You need to put the ethernet interfaces into a bridge and assign the IP address on the bridge itself.
Does TCP listen on one port and talk on another port?
Thus the server can have many TCP sockets using the same local port, as long as each of the sockets on the port is connected to a different remote location. Theoretically, yes.
Can a IP address be used to indicate a subnet?
Because an IP address is limited to indicating the network and the device address, IP addresses cannot be used to indicate which subnet an IP packet should go to. Routers within a network use something called a subnet mask to sort data into subnetworks.
How does a subnet work in a router?
Once the packet arrives at that network, a router within the network consults its routing table. It does some binary mathematics using its subnet mask of 255.255.255.0, sees the device address “15” (the rest of the IP address indicates the network), and calculates which subnet the packet should go to.
Can two NICs have the same subnet but different?
If you’re talking about two (physically) separated networks with both the same subnet, and the same subnet mask, Eth0 has the 192.168.1.0/24 subnet, and Eth1 has the same 192.168.1.0/24 subnet, even though the two networks are physically seperated: Yes.
Where is the subnet address in the range?
The Subnet Address is always on the first ip address in the range, and the Broadcast Address is always on the last one in the range. Okay I’m going to change our subnet from 255.255.255.0 to 255.255.255.240.