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Questions tagged [tunnel]

226 questions
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Dynamic VPN tunneling technologies

Ok, so I'm asking a more specific question this time. I'm writing a paper about Cisco's DMVPN and one of the tasks I have is to make the analysis of available network solutions which use dynamic VPN tunnels. Because the paper is about DMVPN, I have…
Adam
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Tunnel apt traffic from private network through public to the internet

I've got 4 Servers under the following config: Servers 1 and 3(Web Server, Mail server respectivelly): NIC1: Public Network, Connected to the Internet NIC2: Private Network, Communication between servers. Servers 2 and 4 (DB and Backup Server): NIC:…
Constantine Loukas
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How do i route TCP connections via TOR?

I was reading about torchat which is essentially an anonymous chat program. It sounded cool so i wanted to experiment with making my own. First i wrote a test to grab a webpage using Http. Sicne .NET doesnt support SOCKS4A/SOCKS5 i used privoxy and…
user274
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Configuring ipv6 over radvd using sixxs, routing not working

So this morning, I have been trying to configure IPv6 upon my network using the guide I found on reddit (of all places) at http://ipv6friday.org/blog/2012/06/ipv6-enabling-training/. Now at first glance, this appears to be working, however, the…
Matthew Gall
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Programmatically open a SSH tunnel in active session?

I'm aware that after starting a new SSH session I can open the SSH shell to start a new tunnel (Enter then ~ and finally C): >ssh -L 9000:localhost:9000 Forwarding port. Is there a way to do it in a non-interactive way, while already SSHd in? I'm…
lukaszkorecki
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Linux lightweight tunnels

Linux now support lightweight tunnels https://lwn.net/Articles/650778/ which means tunnel configured on the routes (so no need to set up one interface by tunnel). But unfortunately I did not manage to find much documentation on them. In the patch…
Damien Robert
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aws ec2: ipip tunnel between instances via public ip addresses

Can anyone kindly tell me that it's possible or not in the first place? Suppose: There are two ec2 instances In one aws account/vpc. In different subnets/available zones each other. Runnig on CentOS 7. There need to create an ipip tunnel…
Takao IIZUKA
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Reverse SSH two times from C to B and from A to B to shh from A to C

My hosts: A - windows WSL (can not install ssh in Windows, only in WSL) B - ubuntu 16.04, with sudo C - redhat 7, without sudo or root Then access I have: I can access B from A I can access B from C I cannot access C from A or B I cannot…
Robert Grzelka
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If an echo from tunnel interface IP is successful but an echo from the tunnel interface source fails, is that an outage with ISP?

Trying to track down an outage. Our Cisco ASR has a tunnel configured as IP: 100.64.#.# Source: 192.#.#.# (Amazon DX block, this address is also configured as a loopback on another interface) Destination: 52.#.#.# (tunnel endpoint through…
screampuff
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How to get reverse tunnel IP

I created reverse tunnel from Server to Endpoint using command: ssh -R 127.0.0.1:4000:localhost:81 user@server.domain Tunnel was created on Endpoint side and it leads from Server port 4000 to Endpoint port 81. There is a service listening on this…
Kolibra
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Tunneling on Linux through VPN on windows host for yum

I need to upgrade and install some yum packages on remote server without internet access that's only accessible with a VPN client on a Windows host. Once this VPN connection is established the Windows host loses internet access, but can still access…
imbtfab
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VPN Tunnel - Crypto map policy error

Good day! GCP reports the following error: The peer gateway notifies: Proposal mismatch in CHILD SA (phase 2), Please look at peer logs. On the ASA 5505 side I'm getting: Map Policy not found for remote traffic selector…
Andrew H
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forward vpn server traffic to another server

I have set up 2 VPN servers in 2 different locations [ A:openvpn server(ubuntu) , B: PPTP Server-RouterOS Mikrotik ] What I want to do is to make A route all client traffic tthrough the pptp tunnel established between A and B: Client <=> Server A…
user3699217
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OpenVPN clients with same subnet connect to server

Is there any way at all to connect possibly hundreds of IOT devices that have the same LAN IP (192.168.1.1) to one OpenVPN server? The devices have openvpn client preinstalled. I've been told it's 100% not possible. Is that correct? Obviously I am…
cv05
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Linux Advanced Routing Use Remote Gateway On LAN

I am trying to route a remote gateway so it can be used on the LAN to assign public IPs from a remote network. I have partially succeeded with some hacking around but cannot fully achieve what I want. LAN A needs to use the remote gateway of WAN…
Areeb Soo Yasir
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