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

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Connect 2 Networks and restrict acces

The Setting: 2 apartments where each has it's own internet connection over an AVM Fritz!Box. I'd like to connect both apartments with a network cable. In apartment 1 is a NAS wich should be ...
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197 views

OS X: Trying to route specific ip range through ethernet, the rest through wifi

I'm a software vendor working at a client's premises. The client has a corporate network that pretty much blocks the internet, so I'm using a Wifi router for internet access. The problem comes when I ...
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93 views

Routing some request through VPN with Tinc

maybe you could help me. What I need is that some request to certain host are passed through the VPN that I've created with Tinc. By example: Server B request test1.mywebsite.com -> Request go ...
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1answer
66 views

How to access the service on the server which act as the VPN Gateway as well?

I am currently running a VPN Gateway by Strongswan on a CentOS 6.5 VPS. The CentOS server has one eth port. The VPN is using IKEv2 and the connections between clients and server are established. The ...
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1answer
30 views

About network traffic control

I have a satellite internet connection -> a pretty nice 8 processor server with 64gb of ram, running debian 7.7, two lan ports, one connected to the gateway, the other to the wifi router, wifi to all ...
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26 views

Access VPN client from LAN

I have a pfSense configured as firewall/router/VPN server (PPTP, unfortunately, cannot be switched to OpenVPN/IPSEC/L2TP). The local clients are on 172.16.12.0/24, and VPN clients are on ...
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104 views

Connections from virtual host to internet OK, but to rest of LAN, broken

In a notebook running Ubuntu 14.04 I have installed VirtualBox and created a virtual server with Windows 7. The PC is connected to a 192.168.x.y LAN. The virtual server is in a host-only network with ...
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2answers
231 views

Multiple network interfaces with the same local IP address

I run several VPN connections that give me different external IP addresses. But these VPN servers often give me the same local IP address. So I can end up with the following configuration: eth0 ...
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73 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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113 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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44 views

How do I route data from a VPN-Connection to a server connected with ICS? (Windows)

I am running a Windows 8.1 machine as a centerpoint in my network, it has three network interfaces, Wireless Wifi, Ethernet, and a VPN tunnel. The Ethernet interface is used to share the computer's ...
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1answer
75 views

Is it possible to setup a private IPv6 subnet and route to the Internet?

I am still trying to figure out how IPv6 works. But I had a question. I currently have an pfSense firewall attached my Comcast service and configured with to request a v4 and v6 WAN address from ...
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1answer
156 views

Virtual servers not forwarding when DMZ set in DLink 2730B

My router is a DLink 2730B. The target machine IP is 192.168.1.6. I’ve applied DMZ Host to this IP, and have configured on 'Virtual Server' the following settings: Port 21 on 192.168.1.6 is ok, I ...
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195 views

Routing specific port ranges to specific gateway on Asus AC68 router using iptables and ip route

Linux noob here. I was hoping someone could help me with configuring some routing rules on my router, an Asus AC68. The router is connected to two gateways, wan0_gateway and wan1_gateway. I have ...
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0answers
91 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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45 views

Route IP traffic to different machines based on API call

I have a requirement to route IP traffic on public IP a.b.c.d:xyz to either e.f.g.h:xyz or e.f.g.i:xyz, based upon some known state of those machines (known to my app). The traffic itself would not ...
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1answer
338 views

Empty entries (***) when using traceroute on a PC but not when using traceroute in the router

Today when I try to traceroute www.google.com from both my router and my PC, I saw a weird behavior. Router's Traceroute traceroute to www.google.com (173.194.38.176), 30 hops max, 40 byte packets ...
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25 views

Sharing APs, but different gateways

I'm moving into a student apartment building with three friends soon, and I could use some help in designing the network. The situation is as follows. We each have our own outgoing connection with a ...
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1answer
184 views

OS X, packet filter (PF), route-to options

I was trying to setup "policy based" routing with pfctl (PF) on OS X 10.10, however no matter what i do, i am getting "syntax error" from pfctl. config is rather simple: cat ./test.conf inf="en0" ...
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1answer
308 views

OpenVPN over SSh port forwarding : can't redirect all trafic through VPN

I'm trying to escape my university wifi network rules with my Macbook (OSX 10.10). The university allows us to use a server, say bastion.univ.com, to mount an ssh port forwarding. I've an OpenVPN ...
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1answer
184 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: ...
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6 views

Network access, routing issue

My ISP is providing me 3 IP addresses over a single network cable each assigned to a MAC. The main network cable is connected to a switch. 2PCs and 1 Router are connected to that switch. PC1 is ...
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2answers
102 views

Neighbor solicitation or advertisement not forwarded between interfaces

I have Ubuntu 12.04 installed in a VirtualBox VM on a Windows 8 host computer. Windows 8 had a hosted (wireless) network to which I can connect with my Android phone. The eth0 interface of my VM is ...
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17 views

VPN Client to Client Communication

Yesterday I setup a new VPN server which is located in a datacenter with a static ip address. My homeserver is connected to this VPN server and my smartphone as well as my notebook and I'd like to ...
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0answers
333 views

Skype doesn't connect through OpenVPN

I have an OpenVPN server running on a VPS. When I connect to the VPN using the redirect-gateway option to route all traffic from the client through the VPN, Skype loses its connection. As soon as I ...
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56 views

Connect to IPv6 network with a VPN not supporting IPv6

I have connection to IPv6 network, as well as a VPN connection (IPv4 only). However, the two conflicts with each other: when I connect to the VPN, I cannot connect to IPv6 host, by domain name or IPv6 ...
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20 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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35 views

What are the inconveniences of replacing a router by a computer?

I need to manage the internet usage of all the computers (between 10-50) in a network with deeper capabilities than those that a classical router offers. I would like to have features like: ...
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1answer
130 views

Setting up alternate routes to blocked sites via Wi-Fi in Mac OS X

My office has restricted access to Internet sites such as Skype & Dropbox. I also have access to an unrestricted Wi-Fi. The laptop is connected to both access points. Now my problem is, when en0 ...
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2answers
130 views

Routing 2 NICs with Windows 7

I have a network topology according the picture below. The first computer is conected to computer 2 through network adapter with IP 10.44.12.112. I need comunicate with the computer 1 with PLC, but ...
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315 views

sudo route - n add not working in Yosemite

I'm hoping someone can help. I log into one of my customers via a PPTP Mac native VPN. Prior to Yosemite, I would connect to the VPN, then run this command so I could access mail/internet while ...
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1answer
36 views

Why are my routes being removed/replaced when connected to vpn?

Since I work on customers sites and most of the time I need to be connected to my company's network (vpn), I usually create routes to access customers servers. However, sometimes when I'm connected to ...
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2answers
405 views

DNS Resolving Issue For Mavericks

I am observing a weird issue on my Mac running Mavericks (OS 10.9.5). I am able to browse any website without any connectivity issues. However, when I check my nslookup results, I am observing weird ...
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39 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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1answer
129 views

How to solve routing issue when connecting to VPN?

I am located in the Middle East, and connecting to a VPN in New York. Some time in the past couple of weeks, something appears to have gone wrong with the routing, such that it is now impossible for ...
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1answer
75 views

Subnet Masking vs Routing

To extend a network beyond the amount of 254 hosts, there are basically two options, if I understood it correctly: I could use a second network, having a different network prefix and connect the two ...
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1answer
196 views

Reach a VPN client from a host on private subnet on AWS VPC

I have a setup like the one on turnkeylinux's github https://github.com/turnkeylinux-apps/openvpn/blob/master/docs/site-to-site.rst I have a VPC with public and private subnets, and a NAT instance on ...
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2answers
2k views

Adding static route to OS X Yosemite Failing

Trying to add a static route on my MBP (en0 is wifi, en4 is thunderbolt ethernet). ablair@hayate:~$ sudo route add -host 1.1.1.1 192.168.0.1 add host 1.1.1.1: gateway 192.168.0.1 ablair@hayate:~$ ...
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1answer
669 views

unable to ping my win7 computer from an another computer in different subnet while I could do the opposite

subnet A(192.168.137.0/24) has P(192.168.137.1) and Q(192.168.137.2) computers subnet B(192.168.7.0/24) has Q(192.168.7.1) and R(192.168.7.2) computers P is my windows 7 computer connected to ...
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53 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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1answer
96 views

How does email routing work?

I want to understand how email routing works. Lets say I am trying to send a message to someone @gmail.com. According to my current understanding, the following steps happen: DNS MX query on ...
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1answer
49 views

Application specific routing table in linux

I've two systems A and B with different network provider but connected to the same switch. Suppose IP of A is 0.0.0.10 and IP of B is 1.1.1.10. I can make them connect locally or over internet by ...
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68 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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1answer
84 views

Cisco AnyConnect VPN peculiar routing

I have noticed that when my VPN connection (Cisco AnyConnect 3) is active, I have the following routing entry: Persistent Routes: Network Address Netmask Gateway Address Metric ...
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191 views

VMWare Player bridged guests can't see host on network

I have a Windows 7 Ultimate 64-bit machine running 3 VM's on VMWare Player 6.0.3. The host is not able to communicate with the guest machines, however the guests are able to communicate with all other ...
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38 views

Forcing local IP traffic over cable only works for a few seconds

I have a machine with three network devices (eth0 - eth2) with eth1 and eth2 connected together via a network cable. I access the system via ssh using eth0. eth0 is on one ip range 10.87.3.x and ...
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1answer
43 views

Configuring route from source to destination

not an expert in Solaris networking so would like to ask your opinions Say i want to configure packet routing from source 10.126.120.130 (A) to destination 10.214.140.9 (B). I configured it this way ...
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47 views

Wireless NIC Configuration Troubleshooting

My wireless connection at home doesn't work anymore... I was onsite with a client, and their network team installed a few static IP address routes so that I could connect to their internal network, ...
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0answers
34 views

Ping works when initiated from one node, but not from the other

I have two remote nodes on different networks. No node has a route for the other node network, so default gateways should be activated. Node 1 has the correct default gateway that enables the ...
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135 views

windows server 2008 R2 vpn cannot access internet

It seems I have a rather complex case here that I've been stuffing on net for a week but still not go. I would try to explain this issue(s) at the best I could and hopefully get this solved. I have a ...