Questions about using a router/networking, e.g. port forwarding, VPNs

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Router to Firewall to Internal network NAT with Single Public IP

In an effort to learn more about networking I have picked up some old Cisco equipment for home use. I have a 2811 router, a PIX 515e firewall, and a switch (don't remember the model). My incoming ...
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1answer
38 views

How to communicate (route traffic?) across two different subnets

A home networking question. I would like hosts on different networks (subnets?) that use the same internet connection to communicate. Two routers, 192.168.2.x connects to the the internet and ...
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1answer
34 views

How do I protect my hosts in an IPv6 world?

I realize that IPv6 adoption is a long way off but I'm trying to understand the basics in order to stay ahead of the curve, and also just for fun. Communicating using IPv6 is no problem. It works ...
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1answer
24 views

Accessing to IP cameras behind TL-MR3020 nano router

What I want to do is connecting several IP cameras to my LAN with wireless router/AP. I have a main USRobotics modem/router/AP (192.168.1.1) and all my computers are connected to that one using ...
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0answers
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Unwanted routes appear after reboot

I installed Debian Jessie on my laptop. I used the ethernet port. I installed the drivers for wifi, and verified that the wifi worked. I disconnected the ethernet and rebooted the laptop. I indeed had ...
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1answer
13 views

Openvpn client routing not always working

I use a server with openvpn and pptp daemons. In iptables I have rules to give some pptp clients permission to have contact with other clients through pptp or openvpn tunnels, available on the ...
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0answers
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Windows 8: Ping Result : General Failure after disconnect from vpn

In Windows 8 When i connecte to the vpn and then disconnect from it, i get general failure. PING: transmit failed. General failure. the routing table are: Network Destination Netmask ...
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0answers
10 views

Routing TCP traffic through cloud server

Is a scenario like this possible: Windows machine 1 (behind NAT) connects to a cloud server 3 (no NAT) Windows machine 2 (behind NAT) connects to the same cloud server 3 (no NAT) Is there a tool ...
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0answers
27 views

Routing traffic around VPN

I recently setup a OpenVPN client on my HTPC, however once I connected to the VPN server I was no longer able to remotely SSH or connect to the other servers I had running on the HTPC. I followed ...
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26 views

Route between two OpenVPN tunnels

I need to set-up something like this: Clients - OpenVPN_tun0 - Int_Server - OpenVPN_tun1 - Ext_Servers - public_internet Both OpenVPN tunnels are up and running using 'dev tun', but I have ...
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0answers
24 views

OpenVPN on Windows: clients don't see network behind server

I set up my openvpn server on Windows 7 pc. Client is connecting to server succesfully, so my port is forwarded to openvpn server. I'am able to ping 10.8.0.1 address from client. And that's all, but I ...
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2answers
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Why next router have smaller response time than previous router in mtr?

In other words why first host have 20.4 ms response time but second host have 15 ms response time. As I know for access to second host must pass through first host, Is that true? Why is this ...
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2answers
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Windows 7 routing with single NIC

I have a PC with single NIC running windows 7. This PC is a member of 180.x.x.0/24 network and is internet accessible. Now, my brother brought another PC with single NIC. I want to make it also ...
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2answers
18 views

connect from one workstation to another that is on a different IP range?

This is my setup below. Router A is the main router. I am on workstation 1.100 (that gets an IP from Router A via DHCP). Router B has an ip with 10.1 at the end but gets the "internet or WAN" via ...
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Application specific routing in windows

Would it be possible to make a specific application to use a specific route to access the internet? Well this is my scenario: my laptop is connected to two gateways one with ip address 10.10.10.1 ...
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2answers
169 views

Yet another routing issue in OpenVPN - Cannot access local machines while on VPN

This is probably going to be quite a lengthy post because I want to make sure I don't forget anything. This is likely a very trivial issue but I can't figure out what's wrong with my setup. Scenario ...
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1answer
40 views

Configuring routing for two networks (one internal, one external)

Here's the situation. My Mac connects to two networks - one internal, one external. The internal DNS works for both internal and external URLs, the external DNS (obviously) knows nothing about the ...
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0answers
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Open-WRT Receive network over WIFI and share on LAN port

How can I configure open-WRT to connect to a wifi network and then share that connection via one of the LAN ports on the router?
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1answer
24 views

Route traffic through different interfaces randomly

I'm connected to one server from multiple VPN [pptp] connections and each connection gives me a limited bandwidth. When I connect to multiple vpns windows sends all traffic through the last connected ...
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0answers
18 views

Linux, peer addresses and routing between 2 network namespaces

I'm trying to understand something about routing in Linux. I've following devices (veth pairs): veth pair: [ns1-1] <10.8.0.1 peer 10.8.0.2> [ns1-2] veth pair: [ns2-1] <10.8.0.5 peer ...
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Routing only one Program through a VPN/Network card [duplicate]

A user uses a VPN for tons of reasons, Privacy, Evading blockades, or using apps/programs that are blocked on a network, a great example would be a school network! IRC's default port is blocked, ...
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2answers
38 views

Is there any way to route traffic through certain computer located else where? [closed]

Here is my problem. I'm currently working at a research organization. They have an institutional subscription to some journals, which provide full access based on IP. Problem is I tend to work not ...
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1answer
38 views

How does Windows 7 store a mapped network drive? I have one that cannot be deleted, and connects in spite of a required VPN being inactive

When I type \\192.168.1.2\ into Windows Explorer on my desktop, it is connecting to another one of my servers halfway across the state of Pennsylvania and I have no idea how. I have absolutely no ...
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1answer
43 views

Setup public mirror (?) of internet server on my router

Can I somehow setup a mirror (this is the best word I came with) of a server available in the Internet on a specific port on my router? Here is what I have: ISP provides me with a static IP adress ...
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2answers
45 views

How to prevent Windows 7 using VPN gateway by default?

Yes, I am aware of this question. However, I have tried following the answers to the question, and they don't work for me. If I uncheck "Use default gateway on remote network", RDP simply refuses to ...
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Route Lan IP to Gateway on WAN server 2008

On my windows server i have a WAN and LAN interface. ON my LAN interface the ip is 10.200.0.1/16 and my WAN has an ip of 192.168.20.100 with multiple gateways192.168.20.1, 192.168.30.100, and ...
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Linux tun interface packet routing

I have questions on the ip packet flow for the following scenario. The scenario is : A tun0 (10.0.0.2/8) interface and a physical wireless lan card wlan0 (ip address not fix) on the client side, ...
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1answer
31 views

Share Internet through Arch Linux VM

I'm working with a LAN which is behind a router that I don't control. The router admin has allowed internet access to one IP address 192.168.0.50. I would like to create an arch linux VM at that ip ...
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1answer
91 views

Static route between OpenWRT router and TPLink Archer C9

I have an almost identical issue as described here; Static routing on a TP-Link TL-WR1043ND However the answer doesn't work well for me as by doing as suggested my internet speed for devices ...
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27 views

Tracerout fails in last hop but succeed from last machine

I have 3 servers : A, B and C. A = 10.1.52.100 subnetMask = 255.255.255.0 defaultGateway = 10.1.51.254 B = 213.56.106.137 subnetMask = 255.255.255.192 defaultGateway = 213.56.106.190 C = ...
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1answer
53 views

Hosts on subnet can only access hosts subnet directly

I recently setup Proxmox as a virtualization host. It is just KVM + Debian in a nice linux distribution. My home network is 192.168.12.0/24. I wanted to use 192.168.14.0/24 as the subnet for all of my ...
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Is there any reason not to use the external IP when accessing local resources?

Until recently I had always assumed that accessing the external IP address from within the LAN would go out to the internet and then back unless specially configured in the router. Apparently, if it ...
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2answers
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Can a Linux machine have two the same IP addresses on different interfaces/networks?

Is it possible to have two the same IP addresses and subnets assigned from two different interfaces/networks? How would such machine behave? How would route table look like?
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1answer
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Mapped network drive cannot be deleted, but shows up in Explorer; connects to wrong server

This is the most bizarre problem I've ever encountered. Summary: A mapped network drive persists in Windows Explorer and cannot be deleted/disconnected (claims it does not exist; net use shows ...
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3answers
291 views

What is the difference between altering the hosts file and adding a static route in the command prompt?

If I wanted to route a certain IP address to my default gateway, could I do it both using routing in the Windows Command Prompt, as well as the hosts file? Is there a difference? Thanks!
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1answer
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Wireless Multicast transmission

I'm working on a high bandwidth application which uses multicast. Let's say there's 20 ip devices connected wireless to a router. One ip device sends a multicast packet to the multicast group. Will ...
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1answer
78 views

OpenVPN: Route only specific subnetwork through vpn - works for single IP adresses

I was trying to route only specific subnet/single through open vpn. I have read several questions like this on superuser, and even found good answer to my question. So I am now able to route single ...
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1answer
41 views

IP network routing: restrict traffic on an interface

My PC has wired and wireless Ethernet. The wired port connects to a private network with no Internet access. the wireless port connects to a domain network with Internet access. The problem is that ...
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1answer
31 views

Use new Gateway as modem and another gateway as a router?

We recently got TWC internet came with the Ubee ddw365 gateway. For some reason wireless and hardwired the gateway disconnects for a few seconds almost every other minute. At a buddies house I was ...
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Can not connect to VirtualHost when VPN

I run VirtualBox on my local machine with Ubuntu which hosts my application. Application URLs points to VM IP Address in my hosts file (/etc/hosts). And this configuration works fine. I can also ssh ...
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3answers
79 views

How do I set Input interface is output interface

I have eth0 with IP X.X.X.X and eth0:0 with IP Y.Y.Y.Y. My goal is if I connect to eth0 then output ip shoud be X.X.X.X and if I connect to eth0:0 the output ip should be Y.Y.Y.Y. Example: VPN ...
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1answer
44 views

IPv4 interface number

I came across a question in Self Test Software for MS Exam 70-642 Which command adds route to destination server, with IP address 10.51.0.0 and subnet mask of 255.255.0.0. Next hop should be ...
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ADSL > VPN > Squid3 > DHCP > eth1 All on local debian server

I've been trying to setup this config for months but due to lack of knowledge & experience I have no success; HW on hand; Fast enough Local Debian server with 2 NICs & SSD hdd ADSL modem in ...
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1answer
42 views

Access another subnet beside wan through router

I want to access the computer at 192.168.10.5 from my computer ( 192.168.1.2) . I also want to access internet at the same time. If I plug the my computer direct to the switch bypassing my home ...
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1answer
14 views

Customized routing rule for VPN usage

I have a PC running Xubuntu. I purchased a VPS server and setup PPTP VPN with it. I'd like to achieve the following: for services like google, twitter, etc, I'd like to use the VPN connection. ...
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1answer
34 views

Connect two different networks

I have a two small networks: One is cabled and another is wi-fi and has the internet connection. The first one is: 10.5.0.0 subnet 255.255.0.0 gateway 10.5.60.1 The second one is: 192.168.0.0 subnet ...
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How to force all traffic to a certain IP through a specific network interface on Linux

I have an ill-behaving piece of software which requires the usage of a certain network interface on my Linux VM. In practive this is a Vagrant box with a NAT-interface and a Bridged interface. ...
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1answer
30 views

ipv6 forward not work

I have the following problem. I am trying to setup an ipv6 network at my home using my server with an ipv6 tunnel as a gateway. Here is my setup SERVER: server interfaces: he-ipv6 Link ...
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2answers
55 views

IP Route Add Issue

I'm trying to set up IE browsing with fixed routes in the route table. Before adding the static route, I can browse http://www.whatsmyip.org/ with internet explorer After I add a fixed route e.g. ...
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1answer
40 views

vpn connection via socks proxy

I can't seem to get a transparent proxy working in openvz. So instead I would like the VPN client to give me back a local socks proxy (ip:port). Is this possible in OpenVPN or any other VPN client ...