Questions tagged [ipv4]
Use the ipv4 tag ONLY if the nature of your question specifically involves IPv4 addresses or networking -- often in contrast to IPv6. Most networking currently involves IPv4 addresses, so you should NOT include this tag with every networking question.
122 questions
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Linux Mint (xfce) is not recognising ipv4 adress of router, but IS recognising ipv6
I have been having trouble connecting to this Wifi router, which is the only one available. When I do connect, I can access ipv6 but NOT ipv4. I have tried disabling and enabling ipv6 and restarting ...
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Is it safe to assign multiple IPv4 and IPv6 addresses to a single interface for roaming across multiple networks?
I’m working on a Raspberry Pi-based network device that moves between several known locations, each with its own IPv4 and IPv6 subnet. To streamline connectivity, I’m considering assigning multiple ...
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cURL IPV4 not working while ports 443 and 80 are open
I'm currently setting up a Linux VPS (Debian-based), to run a Flask app and a python script to make API calls (the API only works over IPv4, not IPv6).
I'm having trouble with outgoing HTTPS ...
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What process can remove an entry from a router NAT table?
I have just been watching a video which explains UDP holepunching.
https://www.youtube.com/watch?v=GfRLNg6DOnI
In this video, some processes which create entries in a router NAT table are explained.
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Force ssh LocalForward to use IPv4 when resolving the hostname
I have the following problem. I need to send report emails for one of our
customers to his customers. Our customer provided an SMTP endpoint for that and
added the IPv4 Address of our server to his ...
- 244
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Docker intermittently uses IPv6 despite disabling IPv6 system-wide on Raspberry Pi
I'm running Docker on a Raspberry Pi 4 (8GB model) with Raspberry Pi OS, and I'm experiencing an issue where Docker intermittently attempts to use IPv6 addresses to connect to Docker Hub, despite ...
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Check if a port is blocked with socat
How to check if a port is blocked with socat?
How to check with IPv6?
I heard a saying that machines behind NAT can still be directly connected via IPv6, is that true?
Anyway, say I have a machine ...
- 1,924
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Setting up network manually, no dhcp, IPV4 only
I’m trying to configure ip (static, so without dhcp), there are some problems that I can't resolve by my self, because I do not understand it in a whole. Sorry if it is already answered, but as I said,...
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curl is not able to resolve host by default, --ipv4 switch works
I have a Linux Alpine (v3.18.6) container running on AKS. The curl command inside that container is not able to resolve a private DNS host. Also, nslookup throws SERVFAIL.
However, when I provide --...
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Trying to conifugre bridge on GRE interface, facing issue
I have created an ipv6 tunnel by using the following commands:
ip link add gre_test type ip6gre remote 2001:4860:4860::8888 local ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff ttl 255
removed actual ipv6
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How to bind a forwarded local port to 0.0.0.0 instead of 127.0.0.1? "Operation not permitted" when using GatewayPorts=yes
A (remote) SSH server remote runs a service on (remote) 127.0.0.1 port 20001. I want to make this service available locally via SSH port forwarding:
ssh -vvv -4 -L 20001:127.0.0.1:20001 remote
Port ...
- 3,586
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Script for ubuntu with 2 IPv4 so that auto choose which direction to go through
I have a PC with two IPs, for an internal network with IP 10.X.X.X and another for an external network with IP 192.168.X.X
I have two network configuration profiles, one for each. If I am on 10.x.x.x ...
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raise network interfaces - debian 12
I'm trying to add one main IP, two extra IP and one IP6. Here is my interfaces file located at /etc/network/interfaces:
source /etc/network/interfaces.d/*
auto lo
iface lo inet loopback
allow-hotplug ...
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Unable to ping or ssh into embedded Linux device: eno1 has no IPv4 address
I am trying to ssh into an embedded Linux device (let's call it petalinux) connected to my Ubuntu server running 22.04 (let's call it oip). petalinux and oip are connected by a direct ethernet cable ...
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Unable to get IPV4 with dhcpcd on Alpine in a dual stack setup
After installing dhcpcd, the machine is unable to get IPv4 from DHCP, but generate IPv6 as expected and get DHCPv6 options (like DNS, domain, etc.); the config in /etc/networking/interfaces is
auto lo
...
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