All Questions
Tagged with tunneling networking
52
questions
1
vote
1
answer
139
views
Traffic shaping ineffective on tun device
I am developing a tunnel application that will provide a low-latency, variable bandwidth link. This will be operating in a system that requires traffic prioritization. However, while traffic towards ...
- 111
0
votes
0
answers
31
views
How do I find out what is stopping a sit tunnel routing?
In my town, IPv6 does not exist with any provider. I own 2001:67c:2284::/48 which I announce with Vultr.
I am trying to set up a SIT tunnel to use 2001:67c:2284:1::/64 from my office using nmcli but I'...
1
vote
1
answer
85
views
Check whether a given host can be reached via a given interface (`tun0`, created by OpenVPN)
I have multiple network interfaces on my Linux system. Some physical (eth0 etc), other virtual (tun0 etc, created by OpenVPN).
Is it possible to check whether a given host (IP address) can be reached ...
- 125
0
votes
2
answers
61
views
Any way to redirect/tunnel HTTP stream from LAN1 to LAN2 through Raspberry?
I have a usual local (192.168.1.x) network with multiple devices and the router with internet connection.
One of the devices is a Raspberry (192.168.1.2) connected via WiFi. It also connected to the ...
- 1
0
votes
1
answer
205
views
why is proxied TCP traffic much faster than routed/VPNed TCP traffic
I have a VPS which can download a file from Server X at 2gbps.
I have a home internet connection which can download a file from the VPS at 1gbps, but from Server X at only 100mbps.
If I use a SOCKS ...
- 1
1
vote
1
answer
181
views
socat tunnel traffic drops after some time
I have two Linux machines, I want to create a tunnel between them using socat, this is my workaround:
Machine1:
socat -d -d UDP-LISTEN:4711,reuseaddr TUN:10.50.50.1/24,iff-up,iff-broadcast,iff-...
- 11
1
vote
1
answer
2k
views
Connect to host machine from WSL2
Problem
Can't connect to Windows X Server (VcXsrv) from WSL2 due firewall rules (sometimes it works, but sometimes it doesnt; it's very strange). Changing the firewall rules is not possible.
But any ...
- 133
1
vote
1
answer
817
views
GRE IP to virtual machine (Proxmox) - Traceroute showing full route
88.198.49.xxx = Hetzner (will run virtual machines on this)
141.94.176.xxx = OVH (contains block below)
164.132.xxx.0/28 = IP block to use on Hetzner as virtual machines
To get GRE set up I ran the ...
- 3,033
3
votes
1
answer
479
views
Explain routing decision
On my linux server, I have the following routing table:
$ ip ro
default via 172.28.127.254 dev wlp0s20f3 proto dhcp metric 600
10.8.3.0/24 dev tun0 proto kernel scope link src 10.8.3.2
169.254.0.0/...
- 33
0
votes
1
answer
84
views
reverse tunneling
for simplicity ill give my servers name, server-A, server-B
server-A - a simple server with public IP, this server is 1G ram, shared CPU
server-B - a more robust server with more ram, cpu cores etc......
- 115
1
vote
1
answer
492
views
How to configure a GUE receive tunnel in Linux for IPv6
I am trying to configure a GUE tunnel to receive IPv6 packets that contain GUE encapped IPv4 packets but I am having trouble de-encapsulating the packets. The IPv6 packets have a GUE encapsulated ...
1
vote
1
answer
1k
views
How to configure a transmit GUE tunnel using iproute2 for IPv6
I am trying add a transmit GUE tunnel with GRE as the header using IPV6 addresses in linux like this:
ip -6 link add name gue1 type ip6gre remote $REMOTE_IPV6 local $LOCAL_IPV6 dev eth0 encap gue ...
0
votes
0
answers
348
views
How to get and use packets coming to a tunnel interface?
I have created a tunnel interface in Linux and assigned an IP for its local and remote addresses. Then, I have created a route for that interface. I want to get the packets coming to that interface ...
- 101
11
votes
1
answer
11k
views
What is this sit0 device?
I'm setting my computer (running Debian Buster) up for Hurricane Electric's IPv6 tunnel broker. They provide instructions for several configuration methods, but here's for iproute2, which I've been ...
- 885
0
votes
1
answer
2k
views
Forward network packets from host machine to QEMU image
I have got a locally built Yocto image with me running inside QEMU. I need to forward a single port from the host machine to localhost inside the QEMU image. The TAP connection I am using assigns 192....
- 11