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

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VPN to IPv4 via IPv6

after our ISP converted our connection from native IPv4 to native IPv6 and DS-lite, I am looking for a way to connect to our home network over VPN. Before the transition, I was using a service ...
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1answer
40 views

IPV6 at home: my ISP delegates me a static IPV6 /56 subnet, how can I set up an IP scheme & DHCP6 for my network?

My network looks like this: (Cable Modem/Router) <-> (PfSense Router) <-> (Internal Hosts) The IP (changed for security) of my cable modem is: IPv6 Address ...
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11 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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7 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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22 views

Multiple Gateway, for VPN and Internet

I'm pretty new as a system administrator and I've got a problem to deal with in my company. We recently got a VPN and it is working great, I already tested it and all is good. Now in my main site, ...
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14 views

Create a seperate vlan on openwrt in client bridge mode?

I am trying to grasp the concept of vlan tagging, and I am having a hard time getting my head around it. I run openwrt on my router (tplink wr841n) and it is set up as a client bridge, with another ...
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1answer
14 views

connect two vlans in cisco switch to one server

I have two VLANs on a Cisco switch. The first VLAN includes 24 PCs and the second has another 24 PCs. Now the company has decided to install a server for these computers. How can we connect these ...
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17 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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15 views

Can't get Windows 7 to route between 2 NICs

I have a situation where I need to route traffic through a Windows 7 box that has two NICs: Computer B Computer A 192.168.10.2 ---> NIC1: 192.168.10.1 Router ...
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1answer
7 views

Networking: fallback failed requests to another network interface

I'm on a linux workstation behind a microsoft proxy server so I've installed cntlm to handle proxy authentication. Now I want to add some more complexity; I want failed requests to use another ...
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31 views

Multi-Gateway Routing - Fedora Kernel 3.17 & 3.18

I know the discussions on multi-gateway source (policy-based) routing have been hashed many times, but am yet find an answer to my current problem. The server (running Fedora 21, Kernel 3.17 or 3.18) ...
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2answers
41 views

Connect to my work LAN and ADSL a the same time

The scenario is to connect to my company LAN and an ADSL modem at the same time. My PC has two network cards. one is connected to internal company LAN(no Internet connection) and another is connected ...
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13 views

short often network pauses when 2 routers connected

my network looked like that: ISP cable --- ISP modem --- my router --- cable connection to computer 1 \-- wifi connection to computer 2 everything worked ...
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1answer
33 views

Question about subnetting with switch

I have a setup which includes desktop pc, server pc(would also act as router), raspberry pi and ethernet switch (and possibly other devices if I get new switch). I would like to know if this ...
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18 views

Can I have a router always assign the same IP to a computer, regardless of which interface (MAC address) I am using?

I'm running TomatoUSB on my router at the moment, and like most router firmware, it lets me assign a particular IP to a MAC addresses. In conjunction with port forwarding, this is useful because I can ...
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1answer
20 views

Using DNS to forward to a specific local address and port?

Im running a server on a local address, a raspberry pi at x.x.x.111:64738. I own a domain, mydomain.nu. I want to create a subdomain (the hosting provides a cPanel interface) and forward it to my ...
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34 views

OSX - Routing all traffic through my VPN

I am using the SoftEther VPN Client to connect to my VPN provider's SoftEther VPN Server, using their software. I have successfully connected but the problem arises when trying to route all traffic ...
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2answers
23 views

Adding route in windows xp

In XP, I am trying to add a static route for a network with subnet mask. I tried issuing the command: C:\>route add 10.3.0.1 MASK 255.255.0.0 10.1.0.1 I get the error: The route addition ...
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1answer
32 views

tell a program to not use the VPN

is it possible to tell a program like chrome to not use the VPN connection while i am connected to VPN for other programs? otherwise is it possibile to tell only some programs to use the VPN and the ...
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1answer
52 views

Multicast and broadcast networks and routing

I am using my computer for watching TV and also for internet browsing(listening to youtube, soundcloud, etc.). For watching TV I am using m3u playlist, with a IP addresses from multicast network(e.g. ...
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27 views

Domain based routing over VPN

I want to setup this weird topology. In a PC I'm designating as a router, I have two regular Ethernet interface and one PPTP interface. I'll name them as eth0, eth1 and ppp0. I have a regular IPv4 ...
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3answers
74 views

How can I inform Mac OS and iOS clients of VPN routes?

On my home network (10.0.1.0/24) I have my Macs and iOS devices (the others don't matter). LAN clients gain IPv4 and IPv6 (native) access via an Airport Extreme (AEBS) connected to a cable modem on ...
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8 views

Mac: Order of networks in Network System Setting vs. “route change default -interface”?

If I arrange the networks in my Mac's System Settings:Network so that en1 comes before en0, and then go to the command line and type "route change default -interface en0", who wins? Does the order of ...
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0answers
48 views

Why does my cable modem have two IP addresses?

The internet setup at my home is as follows: I have a cable modem (192.168.100.1) connected with a coaxial cable. The cable modem is connected to a wireless router (192.168.1.1) via an ethernet ...
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22 views

Create a subnet with 2 FritzBox

I want to create a network split in a Main network (192.168.111.0/24) and a Subnet (192.168.100.0/24). In my Main Network I have a FritzBox 3370 WLAN, as a Router, that is connected to the Inertnet. ...
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57 views

How to bridge two interfaces both on different networks with different IP addresses in OpenWRT?

My embedded Linux device—running OpenWRT—has two interfaces that are ath0 and ath1. ath0 is a WLAN port also runs a DHCP server. ath1 is used for Internet connection. Now, I have to setup these ...
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1answer
40 views

Using iptables to allow LAN and drop WAN of unknown devices

I posted this over on stackoverflow but it was off-topic. I have looked around and couldn't find the answer to my question. I am using a raspberry pi as an internet gateway between my LAN and two ...
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25 views

How to route traffic between two different networks

I've got two different physical networks in two different buildings connected through a wireless point-to-point. In both of them I have an ISP Modem/Router in which the wireless point-to-point is ...
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11 views

How do I make actual use an IPv4 block that I own? [migrated]

We (a small French company) had reserved an IPv4 /24 block (256 addresses) from RIPE-NCC, over 20 years ago, but never used it. We are given three options by RIPE-NCC: The end user of the ...
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14 views

Configure WatchGuard (or any router) to route data but keep MAC Address

I'm looking for a solution other than bridging my network to keep routing the data traffic to my different subnets, but to force the router to label the outgoing fragments with their original MAC ...
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1answer
46 views

What does 0.0.0.0 gateway mean in routing table?

I am new to being a Linux system admin and I am learning about routing tables. Currently I have two interfaces in my virtual machine: vagrant@vagrant-ubuntu-trusty-64:~$ ifconfig eth0 Link ...
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18 views

Safe way of routing WiFi traffic through a VPN connection

my setup is the following: I have a cable modem with WiFi, Ethernet ports etc., working well. Behind that, I have set up another WiFi router (Linksys E3200) with Tomato USB. My purpose is to have a ...
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24 views

Route Ip on Windows, To share internet connection of the server via VPN

It's my first VPN connection. There is the situation: DEVICE: iPhone <====4G-INTERNET====> Home internet access <==> PC (server VPN) windows IP(device on ...
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1answer
16 views

How do you force linux to treat a tcp packet as if it were at the destination ip?

The situation: A tcp packet arrives on eth0 with destination 8.8.8.8. This packet meets some criteria that makes me want to intercept it (lets say I am interested in all packets from source ...
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1answer
25 views

Forward RDP port on WinXP router to computer in internal (NATted) network

So I have Windows XP serving as a router (two NICs - one internal, one external) NATting internal network with access to the internet (through external NIC). This external NIC has publicly accessible ...
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22 views

how to capture “DROP”ped packets on OUTPUT of iptables?

having a fairly complex OUTPUT processing on iptables, how does one go about capturing / displaying (at least similarly to how tcpdump captures them) the packets that were to leave through an ...
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1answer
80 views

How to link two routers LAN to WAN

My former modem was replaced by a all-in-one modem/router (10.1.9.1/24) after a speed upgrade. I still have my DD-WRT router (10.1.10.1/24), which I want to be my main router, i. e. as DHCP server, ...
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2answers
68 views

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
80 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
66 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
62 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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8 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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1answer
24 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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34 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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14 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
56 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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52 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
64 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
35 views

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
47 views

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 ...