the process by which data packets on communication networks are forwarded into the direction of their ultimate destination by routers.

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How to enable source-based policy routing with pfsense

I'm trying to setup pfsense to use WAN1 for all LAN traffic except when a computer has been added to an alias I labeled "PRIORITY". Those computers use WAN2. On the firewall rules, I set a LAN rule ...
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310 views

OpenVPN routing without affecting host routing table

I have a Linux OpenVPN server with two clients, A and B. I've set these up with client-to-client so they can talk to each other. I want to make client A to be the default route for client B so that B ...
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691 views

Route specific network traffic through vpn in virtualbox guest

I am running OSX with a windows server 2008 guest in Virtualbox. My goal is to route some of the network traffic in the host through the server guest. This is because the win2008 server has a VPN ...
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428 views

Clear OS Community and packet time out in client machines only

I am having Clear OS Community Edition running as router with 2 network interfaces. Interface eth0 is connected to LAN with ip 192.168.122.2 and interface eth0 with ip 192.168.2.2 is having internet ...
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152 views

No external src ip in log files (my router ip appears instead)

I recently retired my workhorse WRT54G router/AP in favor of a Linksys EA2700. Since then, all inbound traffic (bound to an Ubuntu 10.02 box running LAMP)logged to Syslog, Apache's error and access ...
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74 views

Precenting ISP IP leakage using VPN gateway service

I read a post here on serverfault detaling a procedure to re-route gateway traffic to a fake gateway to prevent ISP IP leakage if VPN dropps. My questions to adapt this prcedure to my specific needs ...
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170 views

Configuring linux gateway to forward packets

I have a windows box with a wireless card (ip 10.10.96.22) configured with a default gateway of 10.10.96.21/24 (this is my linux laptop's wireless ip). From the Windows box I can ping my linux laptop ...
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132 views

AP Clients not pingable from outside

Here's a rough scheme of my network: - http://i.stack.imgur.com/zrlJJ.png The network is divided into VLANs. The linksys device is connected to a VLAN20 access port. Clients 4, 3, 2 ping the rest of ...
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286 views

503 Error After Microsoft Request Routing Is Installed - 32 bit 64 bit madness

I have a requirement to install the Microsoft Request Routing component for IIS 7.5 running on a Windows 2008 R2 SP1 64Bit machine. After installing Microsoft Request Routing via the Web Platform ...
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196 views

Advertise iBGP learned routes to sub-AS confederation peer

I am having a difficult time figuring out one of the fundamental rules of iBGP, eBGP, and confederations. Consider the following routers which are all in the same Autonomous System (AS) r1 == r2 ...
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438 views

Checkpoint NGX FW1 Routing Between Networks

We have an old Checkpoint NGX FW1 firewall which we have to maintain. For the most part we leave it alone and it just chuggs away and works. The person who originally set it up left years ago and ...
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89 views

Divert TCP connection

I am trying to divert a TCP connection. Given a client (C) which is connected to a router R and two servers (S1 and S2) are connected to the router, C initially connects to S1. I am trying to write an ...
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86 views

shorewall prevents routing from protected zone entities to other protected zone entities

I'm using shorewall as the firewall and gateway for a production site. The site also has a couple of VPNs running into it that are hosted on a different server on the same site (in the protected ...
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444 views

OpenVPN not routing on DD-WRT

The problem is pretty easy to explain, basically I have 2 tunnels open on the server. 1 tunnel goes to our main office so I can manage the company servers. Another tunnel goes to our branch office ...
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613 views

Where is HP Procurve route type “ICMP” coming from?

I've got the following test network: Architecture: edge_a: 192.168.e.1 [edge vlan] (edge switch, no acl) [admin vlan] 192.168.m.1/24 core: 192.168.m.2/24 [admin vlan] (core router, yes acl) ...
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105 views

IIS7.5 non-http port routing

I am trying to use IIS7.5 as a way to route to vnc on different servers or virtual servers. I cant get http to work but not non-http protocols like VNC, telnet, etc. Is there a way to do that? ...
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130 views

reconfigure vpn from cisco to juniper

Right now I have a vpn from a cisco router (ASA 5505) with a network 192.168.1.0/24 connectiong to a Juniper firewall (SSG-520) with a network 192.168.100.16/28. I want to reconfigure the subnet on ...
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317 views

Exchange 2010 org subdomain mail routing fail

I have a central setup with EX2010 and with a separate system as an edge transport, serving email addresses for aa.domain.com and domain.com. For some reason, this means I am unable to send email to ...
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854 views

How to use Ubuntu PPTPD as Gateway?

I just set up Poptop on our Ubuntu 10.04 server so we could use it as a VPN. I can connect to the LAN through PPTP but I can't use it a gateway (I needed to uncheck the "use default gateway on remote ...
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13 views

Strange default route. 0.0.0.0/0 to 0.0.0.0 appearing

Debian 8 on a beagleboneblack, fresh install. I bring up the network devices via the usual /etc/network/interfaces and the network initially comes up correctly. A few moments or minutes later ...
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13 views

IPTables SNAT and DNAT - How to choose correct IP Address?

I have a physical host on which I run some virtual machines. IPTables is fully open and unconfigured but I add the following rule so the VMs can access the internet: iptables -t nat -A POSTROUTING -s ...
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29 views

what is the “ip route” equivalent of “route add -host” in linux?

Specifically, route add -host allows me to specify the host via hostname to add a route to a host, e.g., route add -host www.google.com gw 192.168.1.1 However, I cannot find a way to do this using ...
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12 views

Router OpenVPN client connected, but remote VPN machines not visible

My goal is to connect my Asus RT-68 router to remote VPN network, so LAN computers can access remote ones. Remote OpenVPN server is run on Zentyal Linux distro. My LAN address range is 100.100.0.0/24 ...
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14 views

overlapping subnets - how to give one precedence?

I have Linux devices with a single ethernet interface and two IP adresses. The first (eth0) is statically configured to 10.1.1.146/24. The second (eth0:1) is configured via DHCP and it may happen ...
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23 views

Multiple IP Addresses on EC2 on Same Subnet

I have an EC2 machine which needs to listen on multiple private IP addresses on the same subnet. Each private IP is mapped to a public Elastic IP. eth0 is assigned via DHCP. The alias addresses are ...
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10 views

Routing traffic through veth interfaces

I'm trying to route traffic through veth pair on ubuntu 14.04. Traffic flows fine but the problem is that i can't use tcpdump and other tools on the virtual adapter directly because the traffic is ...
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28 views

OpenVPN - smcroute for multicast tunneling

Good day Problem: After some tiresome research, I discovered not only does OpenVPN not allow Multicast over tun, but I am also not able to switch to tun due this feature not being present in VPN ...
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24 views

openvpn pass ip to client like hidemyass does

I have a debian server with 64 external ips (ip blocks) and no internal IP. They go like eth0:1 eth0:2 (virtual interfaces) I have successfully setup an openvpn server on it so that I can connect from ...
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48 views

Routing host traffic through Linux KVM (pfSense) router

I have a pfSense virtual machine running on a CentOS 7 host. The host has 2 network adapters, enp1s0 and enp3s0. enp3s0 is connected to a bridge br1. My pfSense virtual machine is also connected to ...
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14 views

How to implement user-based routing for a mobile app

Here I have an interesting case I recently knew about. Let's say a small software shop creates mobile and web apps that make requests to a web service. The software is sold to single users and also to ...
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21 views

ASA 5510 Inter-Vlan routing issues

and thank you in advance for your help. I am having an issue where we are migrating from an ASA 5505 to an ASA 5510 and the software versions are quite different as well so they handle VLANs ...
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42 views

How to set up routes and rules at Debian gateway to bypass VPN for certain hosts?

I built my own router running Debian 7, having two NICs: Internal ethernet, eth0: 192.168.42.0/24 External link to VDSL modem, eth1: 10.42.42.42/8 (address arbitrary, just used for PPPoE). I have ...
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18 views

VPC router does not route traffic to CSR

I am trying to configure VPC Gateway Redundancy with Cisco Cloud Services Router (CSR). http://www.cisco.com/c/en/us/td/docs/solutions/Hybrid_Cloud/Intercloud/CSR/AWS/CSRAWS/CSRAWS_4.html ...
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13 views

Using DNAT with IPtables

I am trying to figure out a DNAT issue and I am hoping I can get a hand. Basically I have a OpenVZ box that connects to my LAN via the SoftEther Client. What I am trying to accomplish is a way to ...
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20 views

Is there a way to get the KVM Guest using alias interfaces to communicate with one another?

I've done lots of reading and it seems I have misconfigured my KVM Server. I would mess with the networking to get it to work but everytime I have, my company had to send somebody over while I try to ...
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14 views

Not able to block site on pfsense firewall with squid+squidgaurd

Currently running pfsense latest version and set the transparent proxy using squid with squidgaurd for filter but https is not enable because this feature not work well. So that I want to block sites ...
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15 views

Routing Traffic Through from VPN Client to Switch Network

Network Diagram I have two computers, Foo and Bar, connected to an OpenVPN server on Amazon EC2. Both the computers are connected to the Internet via Wi-Fi. The VPN IP addresses are on 13.8.0.*. ...
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26 views

Geoserver (a java based webapp) returns 404 for some clients after a bit of use. Rebooting the Ubuntu instance temporarily fixes it

Geoserver returns 404 for some clients after a bit of use. Rebooting the Ubuntu instance temporarily fixes it. It seems to happen to clients of mine on xfinity more than others. The service will ...
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45 views

Migrating from Static Routes to BGP:: now TRACERT/PING works but Windows CIFS or HTTP do not

When we switch from a static routed private non-BGP circuit to a BGP private circuit linking two offices, Windows shares and HTTP browsing of internal machines across offices fails with timeouts. ...
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15 views

VPN and bad routing

I have a service listening on port 1000 UDP. This service receives packets from remote devices and responds to them. The IP from which the service responds must be the static IP I have assigned. Also ...
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26 views

Route VoIP traffic over VPN between Routerboards?

Context (the Why): We have a couple of remote offices in shared/coworking spaces across the country. We've had significant issues getting our VoIP phones to work with those internet connections ...
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22 views

Debugging a routing issue

So I have a weird temporary configuration that we have in place for a migration to AWS. (retiring some old equipment) I need to pipe web traffic from our current IPs in one datacenter to new ones in ...
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81 views

How to redirect VPN traffic on OS X

I have following problem: I need to connect to VPN and access specific resources (ip addresses). When I connect to VPN all network traffic goes through VPN but in fact I need only specific ...
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14 views

Iptables vm no outbound connections

I'm currently running Proxmox with a couple of vms. Unfortunatly i only got 1 public ip so i tried to work with nat. Problem is, i can't get outbound connection from my vms. Inbount connections to the ...
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25 views

How to alias default gateway IP address

The problem is the following: I have got two dedicated servers at OVH. I have got few virtual servers (KVM+libvirt) and I want to migrate them between two hosts. I already managed to make live ...
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21 views

OpenWRT reroute all router traffic through a Client

I have an OpenWRT router (192.168.1.1) with various wired and wireless clients (192.168.1.x). One of the clients is a Suricata Sensor (192.168.1.100) with only one, 1000MBbit NIC. I want to ...
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52 views

Server 2008 R2 and RRAS

Good Day, Hope someone can help. I am currently working for a private educational institute building and managing a network. I have had to fix quite a bit of this network to get everything to where ...
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17 views

squid+squidgaurd not working in bridge mode in pfsense

I have installed pfsense on bridge mode and without squid it's working but if i enable to squid and squidgaurd then internet is not working. i have setup as below. internet--netgear-------WAN ...
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25 views

routing policy messed up in firewall

my Firewall is working weird, i checked my routing policies and i found some messy stuff i have joined my rule list below (executing "ip rule list " several time, waiting about 5 seconds between ...
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24 views

Linux forwarding packets to remote destinations (not localy)

Network case: Source--Routers ... eth0=LINUX=eth1 ---- some routers.. -- Destination 2.2.2.2 10.0.0.1 192.168.0.1 1.1.1.1 and 1.1.1.0/24 via ...