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

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Route only on output chain?

I have two machines A and B. I want to send iperf traffic from A to B, but first have it route through a userspace program on A. I did this with a tunneling device: therefore, I used the command ip ...
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110 views

Win7 load balancing over 2 default gateways and 1 interface

This is a scenario I've been working on lately: My PC has 1 NIC connected to a 192.168.100.0/24 network. This network has 2 gateways to the Internet, namely .1 and .254. Now I want to get to the ...
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315 views

WANem to route between machines?

I have installed WANem 3.0 Beta 2 on a physical machine with 2 interfaces, and I have 2 Linux boxes connected to it. Like so: Linux1:100.100.100.2 <--> 100.100.100.1:WANem:200.200.200.1 <--> ...
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238 views

Tomato: routing WAN traffic to local port

Setup My Tomato router is configured with one of the lan ports (LAN4) in the same Vlan as the WAN port. The server has its own WAN IP assigned by my ISP (11.11.11.22 in this example). All other LAN ...
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86 views

Dual network interface default gate

I'm running Ubuntu 14.04 with dual NIC's. I'm seeing a problem where by one of the NIC's doesn't seem to want to use it's default gateway to route traffic. One NIC is operating with a Public IP ...
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59 views

Cisco VPN, Site 2 Site Via VPNC Gateway

i may be barking up the wrong tree here, been racking my brains over this. I've been asked to setup a Cloud network which will house a number of services. They asked me to use our excisitng Cisco ...
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71 views

Wamp, Route External IP to one file and Internal IP and Localhost to Wamp HomePage

So I recently downloaded WampServer and was wondering if there would be away for me to be able to route my external IP address and my internal IP address, along with Localhost, to separate locations. ...
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154 views

Setting up wifi network with OpenWrt

I have router MR3020 with OpenWrt. I need wifi network with access to an admin panel of the router and the Internet from the another network. I have another network "BigWifi" (not mine), and I ...
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275 views

VLANs, routing and DHCP

I've got my home network up-and-running to an extent, but I'm trying to improve the setup. On top of this, I'm using it as an exercise to try and learn the ins-and-outs of slightly more complicated ...
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51 views

Add External Internet Route to Existing (VPN based) Network

The situation is as follows. A remote site is connected via VPN router to the "mothership." They now have their own high speed internet connection that they need to use for external internet tasks ...
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58 views

How to use IP address after getting ip pool from irinn?

How to use IP address after getting ip pool from irinn ? What is exact procedure after IP registration till getting ping from outside network ?
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459 views

Connect two subnets over dd-wrt router

I would like to connect a static IP subnet over a DD-WRT router to another subnet. My setup 192.168.22.2 PCs with static IP connected via LAN to 192.168.22.1 DD-WRT Router connected via wifi to ...
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26 views

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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119 views

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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314 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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73 views

Extend existing IPv4 network by embedded System with its own network (different subnet)

I'm developing an "embedded device" using a self-made RTOS that should be connected to arbitrary customer IPv4 networks. Let's call this embedded device "master". Additionally to the NIC connected to ...
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160 views

Multiple NICs on a same subnet

Although there are several articles discussing about the issue, I need some advice because I am still facing the problem. I have 3 interfaces on a virtual machine (cents 6.6) [root@localhost ...
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323 views

Windows 7 IP routing

I'm really stuck on this one and I have been told stack over flow is a great place to come for advice. I have a machine running Windows 7 Professional with two internal gigabit NICs. I have enabled ...
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144 views

Not able to SSH into Raspberry Pi when PPTP is active

I have a Raspberry Pi set up as a seedbox, and I'm trying to make it connect to my VPN. I'm using PPTP to connect, and I can make the connection work just fine, and my IP address as shown to the ...
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25 views

Route network traffic back to the same wire

I would like to monitor outgoing traffic from my wi-fi connected phone using Wireshark on my Windows desktop. I changed default gateway on the phone to the IP of the desktop and Wireshark can now see ...
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56 views

Static routes in ISC DHCP

I have an Ubuntu 14.04 server at home running bind and ISC DHCP. Bind is caching from unblock-us.com so that I can get access to US Netflix content. This all works fine. I'm running into trouble ...
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87 views

Adding a static route for gmail?

I have my PC (windows7) on two networks - WiFi Hotspot and LAN at the same time. I would like to add a route on my PC such that requests to gmail go to the Wifi Hotspot and everything else to LAN ...
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82 views

Dynamic Routes at Home Router

I am currently using a linux box as my home router (PPPoE to my ISP and NAT, etc). Some websites are blocked in my country (don't say the name out loud), so I have another PPP in my router to a VPN ...
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101 views

Is there a way in windows to force/encourage a program to use a specific NIC (not as a developer)

I have multiple network cards, and can use more than one of them to connect to the internet. It is simple to force connections to a specific target IP to go through a specific NIC, using the route ...
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297 views

multiple ip and subnets in virtual routed xen environment

I'm trying to setup a multi ip, multi subnet environment using xen on debian wheezy host. I have only one NIC and the guests are also debian wheezy. this is my original, working, ...
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37 views

IP rule table look up does not seem to work

I have a sytem with three network interfaces. Below is the configuration that I'm trying to set up. wlan0 (its actually an WiFi AP interface) - other devices connects via this interface. net1 - ...
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265 views

How to properly override OpenVPN's redirect-gateway on Linux?

My VPN provider pushes redirect-gateway and I don't like that. On Windows, I override this with routes as advised here: route 0.0.0.0 192.0.0.0 net_gateway route 64.0.0.0 192.0.0.0 net_gateway route ...
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58 views

Always use wireless NIC for Internet access, if it's available

I've got a Windows 7 machine with both a gigabit wired connection and a wireless adapter. Both interfaces have IP addresses on the same network (192.168.0.0/24). I've got a single wireless router ...
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600 views

Intermittent disconnections when using OpenVPN over SSH tunnel; possible iptables issue?

I've recently set up a Debian Wheezy server with OpenVPN to help out some friends in areas where internet censorship is a problem (including the blocking of VPN traffic in general). To overcome this, ...
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2k views

Cisco AnyConnect client removes default gateway after disconnect, but only on Intel Ethernet Adapter not on wireless connection

I recently installed Intel Gigabit CT Network Adapter on my Windows 7 64-bit machine. Previously, I was using wireless connection and Cisco AnyConnect VPN client ver 3.1.0165. When trying connect to ...
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459 views

How to access modem's web gui from inside LAN?

When my Netgear CG3000 is in bridge mode it acts as a modem-only, but it still exposes valuable information about the Internet connection through its web gui. However I cannot seem to access the ...
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165 views

Best way to setup a high performance LAN with a tethered laptop for internet?

This question should be fairly easy for all you network guys out there. So, here is the rundown of what I have access to: -Linksys EA6500 high performance router w/ 4 Ethernet ports + 1 for internet. ...
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110 views

Skip routing via lo interface for outgoing packets

Introduction: I have following load balancing configuration: 10.0.1.31 - lb 10.0.1.32 - node1 (tomcat + mysql) 10.0.1.33 - node2 (tomcat + mysql) I'm using keepalived which is redirecting packets to ...
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385 views

Is it possible to route all traffic on VirtualBox host adapters to guest?

I am upgrading Ubuntu 8.04 on a dedicated router/firewall/NAT/SMTP/SSH server with a current Linux (Debian Wheezy). I am using VirtualBox (4.2) with Ubuntu 8.04 as host and the new Debian build as ...
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270 views

Segregating/Separating a device (ATT 3G Microcell) from internal network without using DMZ

I would like to put the ATT 3G Microcell in an isolated network from a network that has the rest of my devices, by which I mean I want the ATT 3G Microcell to only be able to access the Internet, but ...
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351 views

How to stream WiFi cameras over a Linux gateway to my laptop using iptables?

My setup is as follows: Linux gateway has one WLAN configured as WiFi client (192.168.0.100) to a Linksys WiFi AP(192.168.0.1). There are three WiFi cameras connected as WiFi clients (192.168.0.101, ...
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149 views

Linux routing table entry disappears

I run Fedora 20 (Linux 3.13.3-201.fc20.i686) inside VirtualBox on a Windows 7 SP1 host. The Ethernet adapter on the guest is configured as a Bridged Adapter in VBox, and gets an IP via DHCP. Here's ...
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138 views

multiple ipv4 addresses with internet connection on single physical device

my isp gives me up to two ipv4 addresses. i have a raspberry pi with archlinux connected to the modem. first interface is eth0 and the ip address is obtained via dhcp. i created a virtual device with ...
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833 views

Tunneling traffic through OpenVPN

Following the steps described here I've managed to configure both the VPN server and client(I can ping both ways). Their respective configuration files are: server: ;local a.b.c.d port 1194 ;proto ...
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213 views

BindIPEndPointDelegate to select VPN interface on Windows

I have multiple Windows-intergated L2TP VPN connections on my server. By default, all internet traffic should be routed through my local network adapter and not through the VPN. My application should ...
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185 views

ARP for a multihomed machine (Linux)

I try to configure two interfaces on my server to behave as independently as possible on the same medium. However I have some problems with ARP (maybe related to ARP flux). I hope somebody can ...
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513 views

Ping through GRE tunnel discarded between 2 interfaces of a router - Ping does not reach subnet

I have an interesting issue that I hope someone can help with. I am trying to create a GRE tunnel between 2 routers (running Linux Ubuntu 12.04) and pass traffic between 2 subnets trough this tunnel. ...
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102 views

Query an office gateway/router to confirm all routes?

Is it possible to send a 'query' of some sort to a gateway device in an office to see what subnets I have access to? For example, I know that I have access to multiple subnets because we have many ...
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286 views

ESXi connect to external management network from internal VM

My ESXi server has two vSwitches: One has a physical NIC attached which I labelled "external". The other has no NICs attached which I labelled "internal". My external network is in the subnet ...
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156 views

How does UPnP know which IGD to port forward on if there is more than one IGD?

Say I have two IGDs on the same subnet with UPnP enabled. The host is configured to use one as its default gateway. How do UPnP applications know which IGD to port forward on. I don't think they use ...
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2k views

How to troubleshoot routes while trying to forward all traffic through VPN

I've recently set up a LogMeIn Hamachi VPN in Gateway mode. My goal is to forward all internet traffic from my local machine through the VPN. I've been searching for a while now and have only found ...
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198 views

Can I force putty to use some networking interface?

The problem is that I've two networking interfaces one of them does not allow any outbound ssh connection. How can I force putty to use the second network interface so I can connect to a remote host? ...
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504 views

Understanding Linux routes in Proxmox

I have a server and decided to go ahead and practise with Proxmox. This is the network setup I have right now: Two interfaces: eth0 & eth1 (different NICs, both connected to internet) Two ...
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161 views

NAT routing command in windows

Is there any specific command in windows which do the following task: I want to modify the source IP address in the packet whose Destination IP is not in the private LAN, i.e., I have a virtual ...
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38 views

Route certain programs to different gateways

I own a small network with 15 windows computers, 1 linux server with samba for network storage and 3 aDSL lines of 8Mb/s each. I have set 5 computers in each adsl line. What I want to do, is having ...