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

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25 views

Static Route Dual LAN CARD Centos 6

First let me explain the scenario. I have two internet connection (Lease LINE and BroadBand). I have a CENTOS 6 Server which is used for VOIP calling (GOAUTODIAL). Now I want everyone in the LAN to ...
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25 views

How to rout only ftp packets to a particualr interface ppp0 from eth0 in Linux

I need to create an automated script for creating dial up connection and test it using ftp file transfer to a remote server. I have successfully written the script which creates a new dial up ...
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22 views

Load balancing with http traffic on spacific wan

I have configured Pfsense with two WAN [ WAN1 and WAN2 ] Both the interface are UP and pinging to internet, In my setup WAN1 is default , I am trying to configure in such a way that all http and ...
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54 views

“Network is unreachable” while defining specific route

Tun1 is my VPN tunnel. I don't understand why I get "unreachable" here: # ip route default via 192.168.1.1 dev wlan1 proto static 10.1.0.0/16 via 10.9.0.5 dev tun1 10.9.0.1 via 10.9.0.5 dev tun1 ...
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49 views

Having difficulties routing TCP via OSPF (quagga) generated routes

I have two isolated virtual machines (srv-a and srv-b) broadcasting their cluster address (10.0.1.253/32) via OSPF. A third virtual machine (router) with IP forwarding enabled is receiving these ...
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65 views

Cisco 2901 Inbound NAT with local IP overload

Overview We are replacing a Juniper SSG on one of our networks with a Cisco 2901. Everything has so far been quite smooth except some issues have come up with external ports needing to be opened. ...
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32 views

L2TP Client Routing

I've setup a VPN Terminator in our DMZ using Windows 2012 R2. It is multi-homed with 2 interfaces: 1 to the DMZ for incoming connections from VPN clients, 1 to our LAN for the tunnelled traffic from ...
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35 views

OpenVPN network topology

I'm part of a very small startup and as such I have little money for infrastructure, etc. I need to roll out a OpenVPN service so some employees can VPN in while on-site. To give an indication of ...
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149 views

OpenVPN Access Server can't ping it's clients

As a proof of concept, I'm trying to configure an OpenVPN Access Server (AS) with two clients on respective private networks. The goal of the experiment is for the clients to communicate with each ...
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40 views

VLAN routing to internet

I am currently setting up a new network and wanted to make sure it is being done in the best way as this is my first time working on a NetVanta 1234P and I am having issues with routing The client I ...
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94 views

Setting Up Policy Based Routing For Openvpn

I am trying to run a server that is connected to a vpn. I want to route some of the traffic through the vpn and some of the traffic outside of the vpn. More specifically, I want all traffic to go ...
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72 views

Meaning of “scope link” when adding default route via different subnet

I've noticed different behavior when using or not using "0.0.0.0" as the gateway for host routes (and trying to understand that). I'm using CentOS 6.5 and attempt to add a default route via a host ...
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81 views

DD-WRT OpenVPN Client Router not routing

I have been trying all weekend to solve this and unfortunately no success. I have a DD-WRT installed router, which is intended to be a gateway or tunnel to an OpenVPN server via the internet with the ...
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97 views

How can I allow NAT from inside to outside and vise-versa when each of my clients will have only one static public IP using an ASA5525-X?

My network topology is pretty basic. My data center provides a router and added a switch just before my cage to provide connectivity to all of the racks. My rack takes the copper drop they provide and ...
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92 views

IPv6 host route is deleted after PMTU expires

I am experimenting my new IPv6 tunnel setup between my local Ubuntu box and a scratch Linode. I set up some docker containers, configured 6in4 tunnel server and IPv6 forwarding on the Linode: # uname ...
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67 views

SonicWall Routing Between VLANS

We have a sonicwall NSA 3500, x4 has 2 vlan interfaces so x4:v300 and x4:v301. Each vlan has an IP v300 is 192.168.100.1 and v301 is 192.168.101.1. I then have x4 connected to a layer 2 only switch ...
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36 views

network inbound from other subnets refused to server A, Server A can go outbound to internal networks, but not internet

I have a RHEL 6 server with 4 NICs on 192.168.2.[30-33]/24 Set with DHCP reservations via infoblox, I have checked and the MACs all match up. ifconfig shows /24 for every netmask, and the routing ...
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142 views

DNSMasq on DD-WRT not working as expected

Following the guide given here I created several DNSMasq options for a local network, however none of them are working as they should. I am hosting a website internally on a viertual server, however ...
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119 views

Linux IPSec, association established but no traffic

We are attempting to setup an IPSec tunnel from a Debian firewall/router to a Netasq hardware firewall. On the Debian side the tools used are IPSec-tools and Racoon. The IPSec SA is established ...
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52 views

Routing traffic from LAN over VPN link out to 'net; works from router, not from LAN. What route is missing?

I have 3 machines. 2, routers, are connected over a VPN. The 3rd is a PC on the lan behind one of the routers. internet | | ROUTER S1 external: YYY.56.52.56 ...
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105 views

Windows 2008 / 2003 DC can not ping gateway or internet

Im doing some tests trying to setup a domain and i found a very weird behavior. Same thing on windows 2008 r2 and windows 2003 x64 r2. I am running on KVM over proxmox virtualized with virtio. After ...
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20 views

Server 2008 web traffic routing

I have a single server 2008 environment with single NIC - 192.168.0.11 Router0 = 192.168.0.250 (Current Default Gateway) Router1 = 192.168.0.251 At the moment we have a single SLOW ADSL 3mbps ...
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81 views

Ubuntu refuses to route packets for public subnet through linknet

I've run into the novel concept of routing through a linknet from my new ISP, and am currently trying to get a /28 routed properly on my Ubuntu 13.10 server. However, this is proving futile. This is ...
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199 views

racoon server (debian) with openswan client (ubuntu) l2tp-ipsec-vpn - ppp mess up routes

may somebody could help me, I've setup l2tp-ipsec-vpn, it works just with little problem, but PPP pushes new routes, when in config file it's disable (nodefaultroute), even it doesn't delete original ...
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43 views

Routing, OpenVPN and blocked Packets to Router

I have a running Zentyal Router. Now I have created a Softether-VPN (which wraps OpenVPN basically), to connect to this network per Network-Bridge/L2-Switch. So, when I connect per VPN I am in the ...
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24 views

NAT with multiple connections

I have a linux server with 2 WAN connections. It has 2 public IP address as WAN_IP1 and WAN_IP2. The server default gateway is WAN_IP1. The server also has 2 LAN interfaces and the relative subnets. ...
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84 views

HTTP not redirecting to HTTPS, Router or Firewall Issue?

I manage an application server in a different department from IT and since they implemented a new firewall as part of emergency maintenance, users are having issues accessing the web app(Blackboard). ...
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36 views

Routing/forwarding aren't working with quagga [partially]

I have the following design: [m1] eth1 10.10.1.1, cable m1m2 || [m1] eth2 10.10.2.1, cable m1m4 [m2] eth1 10.10.1.2, cable m1m2 || [m2] eth2 10.10.3.2, cable m2m3 [m3] eth1 10.10.3.4, ...
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107 views

xen routed networking maximum segment size

For a few days now we experience issues with xen in routed networking mode regarding the MTU and MSS values (xen 4.1, debian wheezy, ISP is Hetzner) (network-script 'network-route netdev=eth0') ...
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177 views

Packets are not routed by iptables, how to debug

I'm using OpenStack and OVS. This is my case: From a remote host, I ping VM with IP A. Local gateway received the echo request, then send a packet with IP A and MAC address A' (based on a fixed ...
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93 views

Add routes for VPN on CentOS

I am a completely new in server routing and VPN. I have a CentOS 6 server with 2 interfaces running (eth0, eth1) and current routes like this # route Kernel IP routing table Destination Gateway ...
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103 views

Linux routing: How to allow a device inside private network to connect a public IP over an unknown network?

Consider following network topology: ---------- ---- (my network) ---- | Device 1 | (.101) | 192.168.191.0/24 | ---------- | | ...
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44 views

Problems on using KVM Guest as router

We have two private subnets on different locations BJ and SH. in BJ, subnet is 10.1.0.0/16 in SH, subnet is 10.2.0.0/16 We want them connected, so we build a tunnel through public internet using ...
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24 views

Is it necessary to open all used ports when using one Node.JS application to route from port 80 to apps on different ones?

I'm working with an Ubuntu 12.04 LTS, 64 Bit server there I have used the following commands to send all http request on port 80 to port 8080 Commands: cat /proc/sys/net/ipv4/ip_forward #returns 1 ...
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170 views

Windows 2008 R2 site-to-site IPSEC tunnel with Juniper: tunnel up but packets are lost

I am stuck on this task almost for 2 days. Organized a site-to-site IPSEC tunnel between Juniper and Windows2008R2 machine (let's call it W2008R2 for reference). W2008R2 is a multihomed machine (2 ...
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42 views

How do I change outgoing ip address for port 80 only

On my linux server I have multiple ip addresses I can use ip route change default via $gateway dev eth1 src $ipaddress to change my default outgoing ip. Can I do this for only one port All ...
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47 views

need to exclude a static route from being redistributed into eigrp

I have some asymmetric routing and need to point a public IP back through my network. We are redistributing static into EIGRP. Does anyone know how to exclude a certain static route from being ...
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32 views

Amazon EC2 + SSL Godaddy are not routing properly in HTTPS

I have an Amazon EC2 + SSL just installed on GoDaddy. I have successfully managed to install it and get the green https on the main domain https://www.example.com however it doesn't any ...
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54 views

why this routing configuration does not work?

I have 2 VMs in HyperV role: first is RRAS - it has 2 interfaces (both manually configured, no DHCP): 192.168.1.110 - "external" one, connected to the router 192.168.10.2 - that's internal ...
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77 views

How to add a route for a specific subnet?

I have a Linux computer and an eth0 interface with 2 IPs: ip : 10.10.1.1 mask : 255.128.0.0 gw : 0.0.0.0 ip : 10.22.32.1 mask : 255.255.255.0 gw : 10.22.32.254 I would like to add a specific ...
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69 views

FreeBSD routing for multiple subnets

I have to access a network 10.1.0.0/16 through a gateway 10.4.0.2. I issue the command: route add -net 10.1.0.0/16 10.4.0.2 The machine's IP address where I doing this is 10.4.0.22 and it's default ...
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317 views

OpenVPN client routing on TomatoUSB router (gw IP instead of dev interface)

I connect to my openvpn server over Linux (Debian), iOS, Android - everything is ok. But over router (as client) with TomatoUSB firmware it's a problem with routing. I connect to my ISP over L2TP ...
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570 views

Pfsense PPTP VPN Error 806

I was previously using another firewall software and simply by port forwarding port 1723 from the ADSL interface to a Windows Server attached to the LAN, we were able to VPN in. Since switching to ...
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61 views

With split routing configuration returning packets don't reach their sender

I am trying to configure a split routing setup, where all traffic goes out the default eth0 interface, while packets from a single client are routed via tun11 (OpenVPN interface). So far I've come up ...
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46 views

IP Route to forward SRC to other interface/gw

and thank you in advanced for your time and cooperation. I have a simple scenary. We have a VPS (venet0) with IP x.x.x.251 and currently, the main IP is part of eth1, but I need to force the traffic ...
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22 views

Detecting routing problems

I have machines on AWS and I am seeing inconsistency for particular AWS EIP subnets. I noticed packets for these subnets doesn't reach the destination AWS machine and gets lost somewhere on its way ...
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64 views

OpenVPN Server & Two Gateways

I have a network setup as follows: Internet <---> Firewall <---> VPN (1) VPN <---> NAT (2) Internet <---> Firewall <---> NAT (3) (I don't have the reputation to post the picture :/) ...
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104 views

Multiple gateways with linux on same subnet using single NIC

I have the following configuration; Firewall 1 (site 1); x.x.x.x/26 subnet on external 10.0.0.0/8 on internal (internal IP 10.0.0.10) Firewall 2 (site 2); x.x.x.y/26 subnet on external 10.0.0.0/8 ...
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153 views

Routing through SonicWALL SSL-VPN and Cisco L3 Switch

In the image above, we use the SonicWALL NSA 3500 at our gateway and handle VPN with its SSL-VPN. Our Layer 3 Cisco switch is our core network switch and handles about a dozen VLANs. Most VLANs ...
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135 views

Tracert of a spoofed IP results in Infinite Loop

Our firewall picked up a spoofed IP address that caught my attention. When I did a tracert to the spoofed IP address I get what I think is an odd response. Tracing route to 192.168.1.7 1 1 ms ...