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

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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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27 views

1 Network with 2 Gateways

I have a network which is connected to the internet. The range and subnet is 192.168.1.0/24. I also have an AP that is a Point-to-Point network which has the range and subnet of 172.18.53.12/30 I ...
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10 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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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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1answer
9 views

Redirecting marked packets to Tun device

I have a small program that needs to do various things with a selection of packets, based on various iptable rules. The packets are MARKed this way: iptables -t mangle -d 10.10.0.0/16 -j MARK ...
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25 views

Destination host unreachable

An user reports issues with wwan0 interface. 4: wwan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 02:fa:a8:34:86:69 brd ff:ff:ff:ff:ff:ff ...
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7 views

Need all local traffic through Debian - Routing?

Been dealing with this for some hours now and my head are really spinning. So I got this cable network router (192.168.0.1) that Im trying to pass all my local traffic to. But I cannot for the life ...
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17 views

Is there any adsl2+ modem with router capability for which traffic routing from one lan port to another can be forbidden [closed]

Is there any adsl2+ modem with router capability for which traffic routing from one lan port to another can be forbidden for all ports without use of non firm firmware(such as openwrt for D-Link ...
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36 views

192.168.x.x with Subnet 255.255.0.0, would like to link with 192.168.2.x with subnet 255.255.255.0 [closed]

Is it possible to connect these two networks together, without changing the subnet? For example by putting a router in between. Network A IP :192.168.x.X Sub :255.255.0.0 Network B IP : ...
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21 views

How to connect to VPN from Linux and send only part of traffic via it

I have target host, username and password. I can connect in Windows via Cisco AnyConnect. But all traffic goes via that tunnel. Under Linux I used to use Vpnc, but it requires also additional secure ...
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11 views

Why would my logged public IP differ depending on the type of server (or computer) I am connecting to?

I am writing a p2p gaming lan emulator that uses the torrent infrastructure to network peers, set up lobbies, etc. Currently, the only infrastructure we are using is the trackers (we plan to us Tox ...
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17 views

Which configuration files affect the routing table of a Debian system

As far as I know basic network configuration goes into /etc/network/interfaces and the system generates the routing table from these information. I was also taught that in general ...
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10 views

Passenger issue with Rails routes

I have been tasked with getting a Rails 2.3.14 app running with Phusion Passenger 5.0.7 standalone in FreeBSD 9. Setup is all complete and done, the issue I am facing is Passenger doesn’t seem to ...
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1answer
31 views

How to autoconfigure IPv6 route

I configured a simple router that should provide IPv6 connectivity to machines that are on LAN behind it. The router has 2 network interfaces (eth0, eth1), machines have 1 (eth0). On router's eth0 is ...
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Failover gateway using server 2012

I wonder how i can setup server 2012 so that i can use two internet connections in such a way that if one of my internet service providers goes down, that a different gateway is used. If possible ...
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How to stop route delete 0.0.0.0 mask 0.0.0.0 resetting on reboot?

I've used the command route delete 0.0.0.0 mask 0.0.0.0 which works super: the PC sits on the Local network and can access the other computers and is accessible by the other computers but cannot go on ...
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6 views

Public Webserver sees gateway IP in log

I was given a server with NGINX. It has a public IP with port 80 forwarded to it (I guess assigned in the firewall), but when the requests come, the IP is the one of the Gateway/Firewall. I would ...
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27 views

When is an IP replaced in routing?

If I have 2 networks, 192.168.1.0/24 and 192.168.2.0/24, and my IP is 192.168.1.2 with the following routes: Destination Gateway Genmask Flags Metric Ref Use Iface default ...
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3answers
38 views

Understanting wifi routing and gateway

EDIT : I've found a solution as explain here So I'm completely lost. I'm a real beginner about linux networking. I have 3 interfaces eth0, wlan0, wlan1 (2 wifi usb dongle) on my raspberrypi. My ...
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1answer
16 views

Permanent addition of IP address in route in Linux

How to permanently add route IP address in linux For static/temporary adding of IP address in route I am using route add -net "DESTINATION_IP" netmask gw
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26 views

Route certain traffic through tun0 and some through eth0 based on destination IP

I have the following setup, a linux box with 2 physical interfaces sitting between my modem and my router, on eth0 it is set to DHCP and get an IP from the modem, I then run a DHCP server on eth1 so ...
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1answer
24 views

Two lines with the same ip destination in routing table

I am studing a particular case in routing table. As the title i have this table for a particular router in a net: destin.IP Mask NextHop Interface 193.14.5.160 ...
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27 views

Docker tunnel traffic on specific port via VPN

Not sure if this is docker specific or a general networking question. I'm running a Debian Jessie server with serveral docker containers. My understanding is that docker creates a virtual interface ...
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15 views

Networking, Creating subnets

Am having trouble trying to create a small network for my office. I have two Asus RT-N12 wireless routers, internet connection from an ADSL modem, Windows server 2012r2 which I want to be my domain ...
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36 views

2 Nics setup on CentOS 7

I have problem with 2 NICs when I try to setup new webserver on CentOS 7 ==== My goal ==== I have 2 network cards on server, eth0 (for public ip) and eth1 (for internal ip) My goal is my server can ...
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39 views

How to redirect all traffic from one network interface to another on the same linux host

I am writing testcases for a network switch. This involves sending something on one network card (via the switch) and checking that it is received on another network card. I want to disable all direct ...
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48 views

Print 100's of documents to 35 different printers daily

Imagine having ~35 clients that demand that their reports be sent to printers (not faxes, not email), but nice color high resolution printers. You have 20 to 30 reports per client .... so around ...
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1answer
18 views

How is mac address shared from one host to another?

If i have two systems in the same network, how is the mac address shared in the network access layer? By this, I mean how is the destination mac address known to the source?
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31 views

Routing RDP traffic to Windows 7 VM using pf

I have a machine running OS X Server which has a Windows VM running via Parallels. I need to route traffic from the external adapter on port 3389 to an internal/virtual adapter. I have tried quite a ...
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13 views

Cannot set static routing or DHCP pool

I've been doing a project in Packet tracer. To start of, this is my topography: LINK, and this my configuration: LINK My todo list is: -create topography : done -set IP's and subnets : done -set ...
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1answer
52 views

On a host with two IP addresses, I am getting “no route to host”, but SSH works

I have a very strange problem. A server has two IP addresses on a single network interface: eth0 has 172.20.40.1 eth0:0 has 10.1.1.1 The address for eth0 is static, the one for eth0:0 comes from ...
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1answer
38 views

Linux: routing table - Gateway column: 0.0.0.0 vs *?

I have found SO question about What does 0.0.0.0 gateway mean in routing table? but this is not exactly what I want to know. I have noticed that in some outputs (e.g. here) of Linux route -n command ...
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1answer
26 views

I can't set up the following Netsh settings, because the object is already exist

I use the Netsh int ipv6 show int in terminal, the result: 1 50 4294967295 connected Loopback Pseudo-Interface 1 11 10 1500 connected Local connection When I wanted to use the ...
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37 views

Use two different connections: one exclusively for download and the other for upload: possible? [duplicate]

I hope you can help me with this dilemma. I have two different connections, one is via router/ethernet, the other one is mobile: the first one has a very good download speed, but lacks of upload ...
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25 views

Proper network architecture for fault tolerant multi WAN multi building WLAN setup

I need help with deciding the correct network architecture for a guest WLAN deployment. We have 3 buildings, and each of them has its own LTE router (Mikrotik RB411U) connected to an Ubiquiti ...
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2answers
33 views

Can you assign different default gateways on a per-application basis in Windows 7?

I have two internet connections (one satellite and one DSL). I want to route all my gaming traffic through the DSL connection and all other traffic through satellite. Each WAN is served from its own ...
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1answer
23 views

Forwarding requests to my external IP to a different IP

When I connect to my external IP in linux, it gets forwarded to my gateway (router). But I need to run a server, so I need to be able to forward requests to my external IP to my computers ip address. ...
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19 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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15 views

Automatically prefer interface with internet connection in Windows 7

It's fairly often that I have hardline internet and am programming devices over wifi; or am on the university wifi and am programming devices on an off-grid LAN. There is lots of Q&A here about ...
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1answer
98 views

Can't add default route - RTNETLINK answers: Network is unreachable

On an Ubuntu 14.04 server (3.16.0-30) I'm trying to add a default route and getting error as follows: ip route add default via 172.16.111.99 dev bond0.11 RTNETLINK answers: Network is unreachable ...
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2answers
28 views

default gateway based on IP?

yesterday I decided to try something extra at my job (volunteered to do so) I decided to manually add a computer and assign it a private ip address netmask and default gateway. On a normal at home ...
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2answers
282 views

What is the difference between ARP binding and DHCP address reservation?

In my TL-WR1043ND I have these functionalities and both of them pair an IP address to a MAC address. What is the difference? I red that the ARP one is there for security reasons, others say it is for ...
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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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1answer
124 views

Is it proper to route default gateway to the modem instead of the DHCP/DNS server?

My setup is a modem (no DHCP or DNS) connected to a network switch. The network switch is connected to a Raspberry Pi that acts as a DHCP+DNS server using dnsmasq. The thing is, all traffic from the ...
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19 views

Adding the route to openvpn server on the fly

I would like to connect to my openvpn server without a default route for internet (just a route for DNS), and to dynamically add the route to the server once the server ip is resolved. The purpose is ...
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Route everything over virtual interface without dropping backend connection

I've got vpn-ws setup on my server. I'm connected to a public wifi which has blocked many ports blocked (obviously not 80 and 443). When I connect to domain.tld/vpn and run dhcpcd, I get IP address ...
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10 views

VPN failover on Tomato Router

I've configured two VPN clients on my router to ensure some of my traffic secure. One of the client is the major one and the other is the alternative one. I'm now using custom routing tables and IP ...
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1answer
31 views

Anoymous ip route on my server

After typing "route -n" on my server, i figured out these lines 1.0.104.156 - 255.255.255.255 !H - - - - 1.9.22.84 - 255.255.255.255 !H - ...
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33 views

configuring port forwarding on multiple routers

Alright, so I have 2 routers. My secondary router (netis) is connected to the primary router(ZTE) (through which the internet connection is coming) via LAN. All the devices directly connect to the ...
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1answer
27 views

how to mount a network drive from specified network adapter in freebsd

I want to mount a network shared drive by my freebsd 9.3. I know This is possible by: mount_smbfs -I 10.1.1.20 //user@10.1.1.20/shared /root/local_folder/ This is done by default from em0. How can ...