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

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Prevent Users from accessing certain IP ranges when Teamviewer is active

I asked this question on Network Engineering, but determined that possibly using a script or software might be the better solution. I have a network with multiple VLANs and subnets that get routed to ...
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12 views

Prevent DHCP Lease Updates From Adding Gateways

I am having a problem preventing DHCP Lease Updates from modifying my route table in Windows. My issue is that I am routing all my traffic through a VPN and purposefully delete the 0.0.0.0 route ...
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1answer
20 views

How to route openvpn-server traffic over the vpn itself

So I have a server with the public ip address of 101.102.103.104 (for example). This server is running an openvpn server, plus a bunch of other stuff that is listening on the public ip network device ...
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2answers
67 views

Why is tracert showing a private IP address right after my router, even though it has a public IP?

Here is a log of tracert superuser.com from my computer: Tracing route to superuser.com [198.252.206.16] over a maximum of 30 hops: 1 2 ms 2 ms 2 ms 192.168.1.1 2 11 ms 17 ...
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1answer
24 views

How to setup routing on a Windows 7 machine

I have a machine with 2 network interfaces. The network itself looks like this | access point | wi-fi | my machine | | 2-nd machine | | 192.168.1.1 | ...
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1answer
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Windows 7 setup routing between 2 networks

Situation: | access point | wi-fi | my machine | | 2-nd machine | | 192.168.1.1 | --------- | 192.168.1.37 | Ethernet | | Internet ---- ...
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7 views

ShrewSoft VPN, multiple users with same external gateway issues

I have a VPN firewall, we can connect more than one user if using different external gateways. If we have more than one user with the same external gateway then only one can connect and keep pinging ...
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10 views

Prioritizing connections and network interfaces Windows 8.1

I am a gamer and regularly stream various games that I play. Unfortunately, in my area the upload speeds are not suitable for streaming competitive online games, such as League of Legends, since it ...
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27 views

How can i ssh to remote computer that uses vpn connection

How can i ssh to my machine when it uses vpn connection? Same problem with deluge, i cant connect. I cant ssh to my vpn external ip. I can connect on local network with local ip adress. Is there any ...
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23 views

Port Routing/DNS for individual program

Problem: Flickr has closed its http api leaving an https only api. My favourite uploader is no longer maintained, so this change broke it. My current solution to this is to set up a reverse proxy ...
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2answers
47 views

Topology for multiple networks with one common shared network

In an appartment building we need to share common equipment (IP intercom with video stream, SIP server, internal web server) with multiple households. Each household has its own internet connection ...
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17 views

On a dual-homed Linux machine, why do packets route correctly without a link scope entry in one table, whereas the other table requires it?

I have a Linux (3.2.0-35) box with two network interfaces, bond0 on 192.168.20.0/24 and bond1 on 10.1.3.0/24. Here are what I believe to be the relevant routing tables and rules: $ ip rule 0: from ...
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24 views

Inter vlan routing through Layer3 switch vs Router

I am trying to understand a network configuration that I have recently inherited. I am trying to diagnose slow network speeds, internet latency, dropped packets... you name it, the network it kind of ...
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48 views

Can a cisco router execute a command itself? [migrated]

I'm experiencing a problem with my Cisco router 1900 Series, the router sometimes stop routing packets, and when i log into it and show the running-config i see no ip routing executing ip routing ...
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6 views

vpn from another router onto main router

I have two routers at home. One "normal one" ASUS RT-AC66U with original firmware 192.168.10.1 and A tomato "flashed one" one 192.168.0.1 I needed the Tomato one for connecting my Voip via VPN ...
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24 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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22 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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35 views

Route incoming traffic from VPN Clients through localhost-proxy on VPN server?

I’m still quite a newbie to Linux in general and I want to learn by establishing useful projects. My actual project is for a vpn-server to get rid of ads, cookies etc. for all clients. Meaning: No ...
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1answer
66 views

static IP outside of subnet range

I have two questions, but let me explain the situation first. They are about the (static) IP address of a printer attached to the network. We had this networking setup, using a normal consumer router ...
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1answer
40 views

Creating a whitelist of websites on the router

I have a home network using a Siemens SL2-141 ADSL router. Is there a way to tell the router to allow only specific websites, for example, to protect kids using the computers from harmful sites? I ...
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1answer
72 views

Block All Traffic and Allow from Defined IP only in IPTABLES

I want to create a gateway firewall for my network . I want to block all the internal traffic on gateway and allow it from two computers only . On gateway --> eth0 is network card in gateway PC ...
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22 views

Windows 8 - switch active routes

I have a LAN connecting all the PCs in an office within 10.0.1.0/24 subnet, and a wireless USB card with a WIFI router as an alternate way to access the Internet. Both adapters use DHCP with default ...
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1answer
39 views

Cannot route traffic between 2 networks

>C:\>netstat -r IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface ...
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50 views

How to route ports through TeamViewer VPN?

I want to route some specific ports (eg. 1111, 2222, 3333) through a TeamViewer VPN. Here is my setup: Machine 1 (Win7) Machine 2 (Win7) Machine 3 (WinCE) 1 NIC ...
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37 views

Command to add multicast address to routing table

I am trying to add a multicast route. If I do a netstat -g I get: idf@idf-ZBOX-ID42-BE ~ $ netstat -g IPv6/IPv4 Group Memberships Interface RefCnt Group --------------- ------ ...
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1answer
65 views

Iptables mark incoming packet - vpn routing

I have connected my home to my workplace for out of house backup reasons through OpenVPN. The connection is working nicely. At work I have 5 fixed IP addresses. Now I would like to assign one of ...
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42 views

UDP port binding to loopback interface

I've been trying to play a video game in multiplayer, but after trying a lot of time, I begun to realize there was some problem with my loopback interface (Windows 7) I have UPnP activated in my ...
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2answers
39 views

Routing table with openvpn over an unstable wireless network

I'm connected to the Internet via a campus network: IP range is, let's say 10.42.0.0/16 and everything has to go through a proxy server 10.42.0.42. I'm sometimes connected to this network via a ...
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95 views

Routing inside Virtualbox Linux Guest on Windows Host connected to WiFI

How can I route a whole net traffic from a laptop (192.168.1.100) connected via WiFi to a router (192.168.1.1) to which I don't have access and cannot mofidy routing table, to other host in this same ...
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25 views

2 network interfaces - route LAN to interface 1, Internet to interface 2

I want to route LAN traffic over wired LAN interface and Internet traffic to Wireless interface. Which is the best way under Windows? Route command?
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1answer
32 views

Routing ABCs - Packet goes up, must come down [closed]

Can anyone give me a summary of routing technologies? A packet is kicked into the air, reaches an apex, and comes down to earth at some destination. Kicking is pretty simple. The packet just ...
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1answer
70 views

Ubuntu vs. Windows VPN routing behavior

Both my home and workplace networks are the same (subnet 10.0.0.x). When I configure a VPN connection on my Windows 7 machine (PPTP), I can ping any server that is located at my workplace without any ...
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23 views

Route packets from any network to any network

Assuming we have the following network topology and CentOS 6.5 on each router, how can i set ALL traffic go from ANY host in ANY network to ANY host in ANY network? I have already enabled ...
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1answer
511 views

Exactly how many valid IPv4 addresses are there?

Seemingly simple question, with enough edge and corner cases that I don't trust my ability to calculate it. What is the exact number of valid IPv4 addresses that could potentially be used as ...
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1answer
33 views

Is there a way to fix the DNS Routing bug in 84.06.06?

My research with forums and google searches hasn't turned up anything relevant. I have lodged a service request with AVM, but not holding my breath. Overview: The Fritzbox adds static host routes to ...
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4answers
200 views

How to direct IP route through specific interface in OS X?

I'm on a mac and trying to route a particular address though a specific gateway on my wifi connection. I'm using: route add -host 54.81.143.201 192.168.15.1 Sometimes this will work, other times ...
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35 views

Access other PCs connected to LAN through VPN

I had setup a VPN in my windows server 2003 and one client computer is connected. Actually my intention for setting up VPN server is to reduce the PC requirements for remote users. That is a single ...
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2answers
56 views

Global DNS / host for home network [duplicate]

I'm in a situation where my Comcast cable modem will not resolve URLs hosted locally. Essentially, if I access my website from the same network, I cannot use www.mysite.com, but instead must use ...
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530 views

pfSense to route between multiple subnets on same LAN

I started with a fairly standard pfSense setup: one WAN and one LAN interface, LAN-to-WAN access via NAT. Now I needed a second logical subnet on the LAN, which I set up in the following way: ...
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2answers
55 views

Interview on network connections

I was on an interview for a web developer position and for some reason, in the test, there was a question about networks that sounded like this: Your PC ip address is (--something like--) ...
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2answers
39 views

How can i keep an entry in my routing table, even when the associated interface goes down?

I have a linux box set up as my internet router. I have the eth0 interface connected to the lan, and the eth1 interface connected to a pppoa modem and configured with dhcp to my public ip. Due to ...
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1answer
103 views

Synology DSM 5.0 Routerless Configuration

I posted this on the Synology forum and received zero feedback... I was considering eliminating the router from the network configuration by using one of the four ports on a DS1813+ for the internet ...
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1answer
50 views

Static route set from dhcp

Does anyone know if it is possible to add static routes with dhcp? I know that there is option 121 in dhcp but I read that it can set routing via some gateway IP, and I need to set routing via device. ...
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1answer
22 views

Transparently proxifying certain devices on the network

I'm using my computer as wireless access point and router to my home network using hostapd under Ubuntu 14.04. I want to transparently proxify certain wifi devices in the network (identified by their ...
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0answers
37 views

OpenVPN client can't reach a box on server's LAN

I can't seem to figure this out. The server runs on a VPS with private networking. I need to reach another VPS on the same datacenter from the client via the OpenVPN server. The server's LAN IP is ...
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1answer
49 views

Can only ping one way through a VM router

tl;dr I have two local networks (one a VirtualBox internal LAN) and a Win2K VM acting as a router between them. I can ping hosts from one network to the other, but not vice versa. Summary I am ...
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49 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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1answer
31 views

Nginx routing root (/)

I'm trying to serve an app behind an Nginx router. The app is running on port 3000 and services several routes such as /api, /login, and /logout. I also have static content that I want to show for the ...
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32 views

NetworkManager - IPv6 same metric: prefer wired connection

Situation: I have a Linux system with a wired (enp0s20u2) and a wireless (wlp2s0) networkcard connected to the same network. The networking is managed by NetworkManager 0.9.8.9. The routing tables ...
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2answers
60 views

If I remove one network connection, shouldn’t my UNIX host just use the other?

An interesting problem. If there are two network connections attached to my MacBook Pro, and I remove one, shouldn’t the networking just use the other? Well, it didn’t last night - when I went to ...