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Questions tagged [nat]

Network Address Translation (NAT) is a method of connecting multiple computers to the Internet (or any other IP network) using one IP address.

Network Address Translation (NAT) is a method of connecting multiple computers to the Internet (or any other IP network) using one IP address.

NAT is also known as IP masquerading.

RFC 2663 - IP Network Address Translator (NAT) Terminology and Considerations

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How do i check my nat type using stun? New on this

i want to know my nat type, i was trying with this command "netsh interface Teredo show state" however someone suggested me that i should ie a stun server or client to have a better idea of my nat. But i dont have any idea of this, i just want to…
neto333
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Computer Networks: how do packets find a computer in a network?

Suppose I have a computer network, and all computers in this network have the same external IP. The network uses a NAT service to direct packets to specific computers in the network. Let's say that one computer in the network sends a packet to a…
CrazySynthax
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How to add NAPT/PAT rule?

My goal is to forward packets from an interface to another interface without source port conflicts using the right feature, NAPT. I couldn't find how to add a NAPT rule (Network Address Port Translation or also known as PAT) with iptables and…
Alexis
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Removal of Natgateway and add internet gateway

I want to remove nat gateway and make all instances that were in private subnet to get access through internet gateway .Please suggest me the procedure. When I have added internet gateway and removed Natgateway then started getting API…
Rashmi Pandey
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Dynamic Network Address Translation

The question I'm asking is probably very elementary, but It is about the subject of DNAT in Networking. Imagine we have a LAN with 2 computers that both of them want to connect with a single server, outside of LAN (Internet). My question is how our…
DariushStony
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Identifying correct IP address of my machine

Let's say we have a wifi at home. When I google "whatsmyip", it gives me public IP address, which is essentially IP address of my router on the internet. Now lets say I have two machines (A and B) both hosting a web server. I want to reach to a…
codeluv
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nftables - IPv6 port knocking - accept whole subnet

I'd like to add port knocking to a server which is already working. My client sends the magic sequence of packets and the server will add it to a nftables set of allowed clients for specific time. Therefor the clients are allowed to use some…
bago
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How packet gets routed towards IGW of my VPC?

Below is the public route table, that is associated with IGW of my VPC, where first entry indicates that any packet with destination IP address(private) part of CIDR space 172.31.0.0/16 will be accepted(target-local), by this VPC. But packets…
overexchange
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Static and public IP addresses for regular computers

I want to do a messaging application on the browser using WebRTC, but I want to get rid of every third party like STUN and TURN servers (I also want to get rid of signaling servers but first things first). I want the users to keep their contacts in…
JacopoStanchi
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How to NAT source IP address of POD connecting to server on external Public IP address?

I have an application running in a POD on kubernetes. This application connects to server external Public IP address and expects the clients to have specific public IP address. The server checks the source IP address for security. Now that my…
Chandu
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Iptables NAT one-to-one

I use linux serve Fedora 4.14.33-51.37.amzn1.x86_64. I want use NAT 1-to-1. For example Is it same problem My scheme is: My server has two network interfaces. eth0: mtu 9001 qdisc mq state UP group default qlen…
Zak Shirak
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Administer a Domain with only one IP in AWS

Networking Noob here in some dire need for help! Say I have only one public IP (let's say 54.0.0.1) I want to use and several servers in a domain locally. I have created and registered a domain example.com. Now I would like to have one server with…
T. Moser
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Had only one public subnet to VPC, and added NAT gateway to that public subnet instance, but i'm not able access the instance using NAT ip address

I had only one public subnet to VPC,and added NAT gateway to that public subnet, but i'm not able access the instance using NAT ip address. @1)I'm able to ping the instance, with public Ip address(added icmp to security group), but by using NAT…
raju
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'Duplicating' a host from another network to my network

I have two devices connected by USB, having their own network 10.1.1.0/24 on their USB interfaces. From my computer, I'm connecting to Device 1 over Wifi. Both my computer and Device 1 have an address on the network 192.168.42.0/24. What I want to…
deb0ch
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cisco port forwarding to internal webserver

I have one public ip 123.123.123.3 and this is the router port on cisco router.MY website is running on pc4 IP:192.168.0.3. All the internal traffic is going outside by doing nat.My website is bind with the public IP: 123.123.123.3(www.example.com),…
user6730525
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