Questions tagged [ipv6]
IPv6 is the successor to IPv4. Rather than 2^32 addresses (like IPv4), it has 2^128, which is 340,282,366,920,938,463,463,374,607,431,768,211,456 unique addresses (34 undecillion). IPv6 addressing is quite different to IPv4 and is not backwards compatible, but protocols that sit on top (HTTP, SSH, etc) remain unchanged.
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Link-local IPv6 address unpingable through guest VM
We have multiple virtualizor based KVM VM provisioning hosts and none of the VMs can ping link-local IPv6 Addresses. To simplify:
VM <--> VM Host: working
VM <--> VM: not working
VM <--&...
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Any way to to add more than one IP at a time using "ip addr add"?
Is there any way to do this?:
ip addr add 2b00:13d8:700d:b8cf:cd8:15da:3b72:c792/64 2b00:13d8:700d:30fb:c60:a08e:225a:7073/64 2b00:13d8:700d:30fb:c60:a08e:225a:8a23/64 dev eth0
One IP works but I can'...
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Disable IPv6 on Amazon Linux 2023 Instance
For STIG reasons I need to disable IPv6 on my Amazon Linux 2023 Instance. I have tried adding the following lines to /etc/sysctl.conf
net.ipv6.conf.all.disable_ipv6=1
net.ipv6.conf.default....
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IPv6 disappears from virtual machines after exactly 30 minutes
I have a dedicated server hosted in a local data center and VMware Esxi 7 is installed on it . I recently ordered an IPv6 range and as soon as they told me that the IPv6 range is activated , I noticed ...
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RTNETLINK answers: Invalid argument for IPV6 route add
My ISP provided me a leaseline with static IPV6 address, my side is A:B:C:41::2 and the oppsite side is A:B:C:41:1. And also they provided the IP set A:B:C:42:: for the users.
All users are using ...
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I would like to connect over LAN to a webapp listening on IPv6. What are some ways to accomplish this? [migrated]
I would like to host a guestbook for our home for visitors to use to post messages and photos.
In my router settings I can use a DNS to forward guestbook.example to my local IPv4 adress, 192.XXX.XXX....
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Statically create multiple IPv6 default routes
How do I create multiple default routes, each with unique nexthop addresses?
I'm using Ubuntu 24.04.
With two IPv6 routers on a network, they each send their RA and my host creates two default routes, ...
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SSH session over ipv6 hangs after short time, works fine over ipv4
I have set up a server and a router (two machines) with both ipv4 and ipv6 (ULA).
Ubuntu Version: 24.04.
When using ipv4 for both ssh and cockpit everything works fine.
When using ipv6 following ...
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Configuring systemd-networkd for IPv6 on Azure
I'm new at both Azure and systemd-networkd, so bear with me.
I've deployed an Ubuntu 24.04 VM on Azure, and have configured the Azure side of things to a state that appears fully correct — I have both ...
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NTP server not responding to IPv6
I have been trying to set up my NTP server for both IPv4 and IPv6. IPv4 is working fine, as are other TCP and UDP services configured on IPv6, but I cannot get my NTP server to respond to IPv6 queries ...
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IPv6 Route with expiry time, expires late
In recent versions of Linux, when an IPv6 route is added with an expiration time, I have noticed the expiration is exceeded by up to about 30 seconds.
Is there some slack built into the route ...
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Using addresses from subnet v6 vultr
Hi I have an inquiry for you guys, is it possible to use the address from the subnet//64 ipv6 through applications without bind it?
I currently have an address, and I would like a python script to be ...
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What do stateful/stateless IPv6 address configurations do with temporary/non-temporary IPv6 addresses?
I've learned the way to automatically configure a device's IPv6 address. It's based on some flag bits in the RA (router advertisement) ICMPv6 packet.
When using SLAAC (stateless), the device will ...
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iptables prerouting ignores traffic
I'm trying to prerouting port webserver via IPv6 without sucessfully.
I'm having this.
ip6tables -t nat -A PREROUTING -d 2604:a080:xxxx:xx::xxxx:1002 -i eth0 -p tcp --dport 80 -j DNAT --to fd10:8:0:1::...
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Why do I get No buffer space available when trying to use a gre tunnel?
I am trying to tunnel from a vps to another vps via ipv6 and this is my /etc/rc.local
sudo ip -6 tunnel add gre1 mode ip6gre local *LOCALIPV6* remote *REMOTEIPV6* ttl 255
sudo ip addr add 10.0.0.2/30 ...
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