Questions tagged [tunneling]
The tunneling tag has no usage guidance.
177
questions
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What is the use case difference between GRE and GRETAP?
What is the difference use case between GRE nad GRETAP? I understand that GRETAP is layer 2"Ethernet" tunnel.
But when to use GRE and when to use GRETAP? Can you give me specific example for ...
- 21
1
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1
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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
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Permanent SSH tunnel through bastion host
I have the following command that I run locally on my mac to be able to access a DB server trough a bastion host:
ssh -L 9234:MYSERVERIP:5432 USER@MYBASTIONIP -i MyBastionPemKey.pem
that works just ...
- 101
3
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1
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479
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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
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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
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2
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What is the difference between '0.0.0.0/1' and 'default'?
Crew, please take a look at the routing table below. Incoming ping requests from 172.17.4.x are accepted on dev ens160 and answered via dev tun0.
What is the difference between '0.0.0.0/1' and '...
- 11
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699
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How to rebuild a broken SSH session automatically from the remote site?
I use Reverse SSH Tunnel behind a Customer-Grade NATed GSM Modem. This sounds terrible but it is fine. I use the following instruction:
ssh -o ServerAliveInterval=60 -f -N -T -R12345:localhost:22 ...
- 66
0
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1
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602
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Generic TCP connections over a proxy?
Is there any way to achieve this command:
APPX --listen=127.0.0.1:1111 --socks5=someproxy.com:2222 --connect=server.com:3333
Then, if I connect to 127.0.0.1:1111, it will be as if I connected to ...
- 173
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224
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ICMP replies captured but not considered by ping
There is a host with a tunnel interface tunint1 with an assigned IP address. When I'm trying to ping via this interface I cannot see any replies but there are ICMP packets (both requests and replies), ...
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492
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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 ...
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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 ...
1
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1
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570
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Subnets not ping eachother on strongswa vpn tunnel
AOA, I have two clients one remote and other is local but both on same LAN i.e (192.168.137.0/24), while the UBuntu servers in which strongswan is implemented are connected to each other with ethernet ...
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348
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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
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1
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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
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Open VPN packets aren't going through tunnel
port 1194
proto udp
dev tun
ca ca.crt
cert server.crt
key server.key
dh dh2048.pem
tls-auth ta.key 0
key-direction 0
server 10.8.0.0 255.255.255.0
ifconfig-pool-persist ipp.txt
client-to-client
push &...
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