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

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3answers
23k views

Why does this ROUTE ADD command fail?

I am trying to block access to a single IP address by adding a specific route that leads "nowhere" (instead of the default gateway): route ADD 199.239.136.200 MASK 255.255.255.255 127.0.0.1 METRIC 10 ...
2
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3answers
830 views

Avoid corporate blocked URL's when on Cisco VPN

When I'm on my home PC and on my company VPN I can't get to sites that my company blocks. Is there a way to get around this? Why do my requests to facebook.com go through the VPN? Can you configure ...
1
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1answer
130 views

Can I avoid losing three IPs per network on a bridged Xen networking setup?

About a month ago, I asked this question on Superuser. The answer given there certainly works, but I've run into an issue I haven't thought of before. The setup I had running (based on the previously ...
1
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3answers
441 views

How to find the IP address of a router

I live in a dorm where many students have setup small wireless networks. There are two of this networks that are very close to my room as the signal is very strong. Our college uses DHCP to assign IP ...
1
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1answer
479 views

Default gateway is lost

A weird thing is happening here. I am using TPLINK WDR3600 as server, which is connected through Ethernet with a modem in bridge mode. I use 2 PCs and a cell phone on my LAN. Something is happening ...
1
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1answer
712 views

What routes must be set (in Linux) to allow Internet access through given interface without setting it default?

I am trying to solve a task with routing and OpenVPN's configuration. After setting the connection, I don't want it to become defaut route to anything, but rather want to use its interface for this ...
1
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1answer
850 views

Network routing with an ADSL router and two wifi routers

Ok so here's my network setup - ADSL Router (non wifi) -> Wireless N Router (with LAN switch as well) -> Desktop | Wireless G ...
0
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2answers
94 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 ...
0
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1answer
1k views

Route LAN traffic through eth0, not tun0, on my VPN access point

How can I make my Access Point send traffic to 192.168.1.0 through eth0 and all other traffic through tun0? I have set up a Raspberry Pi VPN access point. It sits on the same subnet as all my ...
0
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1answer
319 views

Configure 2 simple local networks with Box/Router/PC

I don't manage to configure my router to create another subnetwork after the internet box. My goal is really simple, i just want to have 2 routers (Box & local router) and 2 networks (192.168.1 ...
0
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1answer
2k views

Possible to config an application to use LAN or wifi access?

MacBook Internet connection via WiFi via proxy (en0) LAN connection via ethernet (en6) i.e.: en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500 ether 00:1f:f3:ba:82:57 ...
-1
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1answer
214 views

Bind incoming packets to 1 interface and outgoing packets to 2nd interface?

I am have a Linux machine with 2 network interface cards, I need to use one for incoming packets, other for outgoing packets.
4
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1answer
554 views

OpenVPN routing issue

Building 1: 10.1.0.0 255.255.0.0 Building 2: 10.10.0.0 255.255.0.0 192.168.0.0 255.255.0.0 Buildings are connected by 1G metro ethernet. I reside in building 1. 192.168.0.0 is firewalled from ...
4
votes
2answers
16k views

Static routing on a TP-Link TL-WR1043ND

My home network setup looks like this: Both routers are TP-Link TL-WR1043ND routers. The basement router handles all devices in the house that are connected via cable, handing out addresses for ...
4
votes
2answers
190 views

Routing Essentials

I'm a programmer trying to fill a big hole in my understanding of networking basics. I've been reading a good book (Networking Bible by Sosinki) but I have been finding that there is a lot of ...
3
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2answers
4k views

Setting up bridged OpenVPN server with single public IP NIC

I've been trying to set up a bridged OpenVPN server without much success. I've got VPS running Ubuntu with one NIC, which has assigned static public IP to it. I want to be able to have a couple of ...
3
votes
1answer
366 views

Using traffic shaping, is limiting download traffic helpful or harmful?

I use traffic shaping in MonoWall (BSD) to great advantage with my home connection. It has been quite some time since I've had any kind of issues where user interaction with the internet has seen any ...
3
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1answer
1k views

Linux: multiple network connections - 3G/4G / Wifi / LAN / etc; how can i set a preferred network connection to use?

I've been looking at how I can setup a laptop that has multiple network interfaces, but a problem exists if all the connections are active, i.e. 3G, WiFi and LAN are all connected, I would like it to ...
3
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2answers
1k views

Access machine in a subnetwork after a router

Is it possible to access a machine in a sub network? This is the situation: Main-router + sub-router - machine (2) - machine - machine - ... - machine (1) - machine - machine - ... ...
3
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2answers
3k views

How to split two networks for one Internet connection

I have a single Internet connection and I'd like to create two networks to access it. Network #1: WiFi accessible Network #2: Wired, not accessible from Network #1, but can still get to the Internet ...
3
votes
1answer
653 views

How can I prohibit the creation of a route in Windows XP upon connection to Cisco VPN?

Problem I have several routes that are created when I connect to my company's VPN using Cisco VPN client. (It appears to be a bug in our VPN client that we're subjected to this in the first place: ...
2
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0answers
87 views

IP forwarding on windows 7

I want to redirect incoming traffic with a specific IP destination address coming to my computer to proxy server working on this PC (C# app). I tried to accomplish it by using netsh interface ...
2
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1answer
5k views

How to allow FORWARDing with firewalld on a Fedora 19 router

I've just installed Fedora 19 and I'm using firewalld instead of iptables, but I'm having difficulty interpretting the new terminology. I have 2 NICs. One is specificed ZONE="internal" and the other ...
2
votes
1answer
7k views

Change PPTP control connection's TCP port number

I have some Windows 7 clients that connect via PPTP to a CentOS server, but I would like them to use a port other than 1723 for the control connection as that port is not available. Is there some way ...
2
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2answers
5k views

Selectively routing traffic via ethernet or wifi, with proper DNS (Mac OS X 10.6)

When I'm at work, I access various intranet pages as well as the wider Internet through ethernet. However, the company LAN blocks some ports (e.g. Google Calendar). I can get to those through WiFi. ...
2
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3answers
117 views

Why does my DynDNS domain show the router page, not the localhost?

I have to setup a home server. I have created a DynDNS account and updated the software. I have set the dynamic dns option in router and while I ping my dyndns account it is redirecting to my router ...
2
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2answers
5k views

How to setup a DHCP-Server who serves to different ip-ranges (e.g. 192.168.1.x and 172.16.x.x)

i have linux running and use dhcp3server which manages my ip-addresses in my network. Now i got a zyxel-access-point and want to drive it on a different ip-range than my wired network. Is it possible ...
1
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1answer
156 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 ...
1
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2answers
265 views

Debugging IPv6 routing issues

I have been given a native (no tunneling etc) IPv6 /64 block by my ISP. My pfSense router has successfully got an address, and from its WAN interface I can for instance ping ipv6.google.com and get a ...
1
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2answers
218 views

Can I do policy routing on a virtual interface?

I know it is possible to give multiple IP addresses to the same interface, say eth0. It is also possible to build several virtual interfaces on the same physical NIC, say eth0:1, eth0:2,.... Suppose ...
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2answers
1k views

Route all the traffic through my laptop (using Squid) wit Windows

I have just installed Squid on my laptop and I am successfully blocking all the traffic that I want to block ( websites, protocols etc. ). But I would like to route all the traffic form my LAN ( have ...
1
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3answers
4k views

Will multiple network cards increase bandwidth? [duplicate]

Possible Duplicate: Combining two ethernet ports I have two available wireless networks in my area, and currently I'm connected to one of them. I want to get a USB wireless adapter and ...
1
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2answers
4k views

Setting VPN to go through certain IPs and not others

I'm a scientific programmer with a loose grasp of what goes on under the hood in my small home network so bear with me whilst I try and explain using the correct words if possible. My home network of ...
1
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1answer
4k views

2 default gateways, one to 0.0.0.0… with DHCP

A problem that I have here with Windows 7 (RTM) and Windows Vista (SP2), on multiple machines, is that clients get a default gateway of the DHCP server (like they should) but on top of that, also a ...
0
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0answers
23 views

reading a routing table for pptp vpn data

I expected a route (on my router) to show my PPTP VPN connection. Now I see my VPN server IP show up, but still with vlan2, not ppp. Is this a problem? What can I do about it? Kernel IP routing table ...
0
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1answer
81 views

Bidirectional two networks link

I have a two networks that I need to link in two directions. network A 10.11.0.0/24 - and its gateway 10.11.0.1 network B 10.0.0.0/24 network B has a VPN server (10.0.0.38) that is doing a ...
0
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1answer
11k views

Routing loop: TTL expired in transit

I 'm trying to ping from my host PC (Windows 7) to Ubuntu 13.04 (VirtualBox). However, I get the error: Pinging 10.0.2.15 with 32 bytes of data: Reply from 78.87.2.210: TTL expired in transit. Reply ...
0
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2answers
56 views

for a pair of hosts on Internet, are the routes the same in two directions?

for two hosts on Internet when a host send a packet to another host there is a route between them is the route the same on two directions? for example, two hosts A and B 1) the route from A to B 2) ...
0
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1answer
866 views

Routing on same network to different interface

Our network consists of a fixed assigned IP address per machine that connects to the domain. One machine (Windows 2003) has a wireless router connected to it (still on domain) with internet traffic ...
0
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3answers
3k views

Multiple network interfaces on a single NIC in Windows

Here's the scenario: Lets say we have a wireless network that imposes bandwidth limit on IP addresses(ie every IP address has limited bandwidth). To get around this, we can obtain several IP ...
0
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1answer
538 views

What software should I use to restrict traffic on my LAN?

I would like to use restrict network traffic on my LAN at home. I have one laptop and one PC. I use D-Link 502T router (it does not have many functions). I have started to work with squid but I don't ...
0
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1answer
387 views

Linux box acting as wireless access point to share the internet connection

A linux machine is connected to internet over two interfaces ppp0 and ppp1 using two modems. Also this machine acts as wireless access point through an interface say, eth0 with ip address 192.168.1.1 ...
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1answer
129 views

No 6to4 default route in Windows 8.1

On my Windows 8.1 laptop, i can’t connect to native IPv6 hosts over 6to4. route print -6 shows that no default route is set: ...