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

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1answer
139 views

Route all traffic through VPN

So I have one VPS (based on openvz) with VPN (openvpn) up and running. I'm connecting to this setup with laptop (archlinux) and everything seems to be working. Let's say that vps's ip is 192.0.2.4. I ...
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0answers
52 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 ...
0
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0answers
169 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 ...
1
vote
1answer
292 views

Why is my pfSense WAN to Comcast going via 100.99.197.221 which appears to be in Belarus?

We are having internet problems today. We use a Comcast business connection. We have a /29 network from Comcast. We have these IP address: 50.x.x.249, 50.x.x.250, 50.x.x.251, 50.x.x.252, 50.x.x.253 ...
0
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1answer
61 views

Nginx to split web traffic to a blog hosted on my domain

At the moment, I am using an Nginx frontend to cache static content for my DotNetNuke based website hosted at the hypotetical address www.mydomain.com, along with some other tasks. In this era of ...
-1
votes
1answer
105 views

How do I write a SRV record for PPTP? [closed]

Hosting a PPTP VPN server on a subdomain, how do I enable the service on the domain with a SRV DNS record? I've already tried: _pptp._tcp.domain.top. 86400 IN SRV 10 10 1723 sub.domain.top. though ...
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0answers
97 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 ...
1
vote
1answer
66 views

VM with 2 network cards

I have a VM with 2 network interfaces which is running CentOS. One connects to a private network (192.168.6.x) and another to our company wide network. When I try to ssh the private address from a ...
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0answers
104 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 ...
4
votes
1answer
92 views

Linux as router - How can I determine which route to use (depends on different source addresses)

I have a Linux server and I used it as a router, which has two network interfaces. I use eth0(10.76.8.60/24, 10.76.8.50/24, router: 10.76.8.1) to connect to the network, and eth1(192.168.1.1/24) ...
0
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1answer
44 views

Windows 2003 Dual Nic Gateway server

I'm trying to configure a Windows 2003 server with two interfaces as a gateway. I'm looking to have this server as a gateway to another network which has an internet gateway. Nic 1: 172.16.0.0 ...
2
votes
0answers
138 views

How to setup multiple OpenVPN connections on a server for a single localhost app to use on CentOS 6.5?

I have a scenario where I need to run several OpenVPN connections at one time and to allow a singular application to access each of these connections. How wold I go about starting up several ...
0
votes
2answers
79 views

Nginx rewrite location internally to serve static content

I'm trying to serve static content from an endpoint that differs in hierarchy structure than the actual root directory structure. This is the result I'm trying to achieve: ...
2
votes
1answer
655 views

Multiple network interfaces, routing configuration. IP rule fails (debian based instances)

I have debian wheezy based instance with 2 network interfaces (Primary, Secondary). My setup flow: vim /etc/network/interfaces auto eth0 iface eth0 inet dhcp auto eth1 iface eth1 inet dhcp ifup ...
0
votes
1answer
68 views

load balancing multiple connections over multiple links

As I understand it (based on the kernel docs) the setting of "arp_filter=1" necessitates the use of a source based routing policy to allow multiple interfaces to route traffic, potentially (but not ...
0
votes
1answer
68 views

Same routes under VPN - how to workaround?

I only have basic experience with VPNs (mostly OpenVPN) and mostly theoric, but now I want to set up something more complex and I am evaluating the possible issues that I may face. I will try to ...
3
votes
2answers
2k views

How to enable traceroute in linux machine

I'm working on something in the transport layer and after i ran our custom policies for securing the policies i'm not able to do traceroute from the linux machine. root@keystone-evm:~# iptables ...
4
votes
1answer
112 views

Massive packet duplication

Short Version: We've had a problem with a particular server receiving massive duplicates of packets. After much fault finding we found the problem was caused by a switch sending my packet out every ...
2
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0answers
45 views

How can I test an ICMP Re-direct message?

I want to test whether my linux machine is actually accepting ICMP re-direct message and updating the entry in routing table.This is what i have done so far to achieve the same. Simulated a ICMP ...
0
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0answers
142 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 ...
0
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0answers
156 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 ...
1
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0answers
65 views

Policy routing local user's traffic down a tunnel

I've got a Linux based Firewall/Router running iptables and SNAT for traffic passing through it to the Internet via a single uplink - This is working fine. There is also a small number of applications ...
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0answers
98 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 ...
0
votes
1answer
231 views

How can I create routes between two separate LANs on the internet over an OpenVPN tunnel?

Diagram I have separate router/OpenVPN appliances at two different sites. The appliances are actually TP Link routers running OpenWRT 12.09, r36088. I would like clients behind these two routers to ...
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0answers
38 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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0answers
187 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 ...
3
votes
1answer
505 views

Internet routing table breaks 512,000 routes [closed]

Looks like with all the mass IP grabs as well as subletting of space, things have finally hit the 512K mark. Anyone on the raw end of an upstream router that ran out of route space? How do most ...
1
vote
2answers
75 views

CentOS 5.4, 3 nic-s

I need your help for the following problem: I have a CentOS server with 3 nics: eth0: IP ADDRESS=192.168.4.102 /24 GW = 192.168.4.1 eth1: IP ADDRESS=192.168.2.101 /24 GW = ...
0
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0answers
179 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 ...
0
votes
1answer
393 views

Cisco ASA Outside to Outside NAT (forward from one public ip to another public IP)

I have an ASA (A) with a set of public IPs (A1..A6). And I have another server S with a public IP (S1) . I want all traffic to A2:22 NATed (forwarded) to S1:22. (SSH is just an example here) If ...
0
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2answers
127 views

Windows 8 is not always selecting correct network card for my outgoing transmissions

The company I work for builds and sells industrial machines. One of our products is a machine which is controlled by a PC running Windows. This particular machine uses a networked device with ...
0
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0answers
65 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 ...
2
votes
1answer
219 views

Windows ignores which interface to use in routing table

Hi i'm running windows 7 and i have 2 network cards, one wireless with internet connection and one wired with local lan connection. I want to use both at the same time so i set the lan card to 1st ...
0
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0answers
168 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 ...
0
votes
2answers
1k views

list all route tables

I need to know how to list the IDs of all route tables. For example, I can run: ip rule add fwmark 2 table 104 ip route add dev eth0 default via 192.168.3.7 table 104 A call to ip rule list shows: ...
0
votes
1answer
177 views

Linux Unraid route traffic through different interfaces

I have two interfaces: eth0 and tun5. eth0 is an ethernet to a router and tun5 is a VPN tunnel. These are on an UnRaid server, which is based on Linux. It's a headless server so I access it via SSH. ...
2
votes
0answers
157 views

How do I get IPv6 packets to my KVM virtual machine?

My setup is: Debian Wheezy x64 on the host and on the guest. I am using a tun/tap setup to connect a virtual machine to the host. The KVM network options I use are: -net ...
1
vote
2answers
119 views

Iptables does not seem to be applying SNAT to packets sent on a raw socket

I'm sending packets from a user space program to my wireless interface wlan0. I've set up a SNAT rule with iptables as follows iptables -t nat -A POSTROUTING -o wlan0 -j SNAT --to 192.168.1.3 And ...
1
vote
0answers
55 views

Inter VLAN Routing

I have VLAN 1 and VLAN 2 setup on HP ProCurve Switch, each linked to a different scope on DHCP server. VLAN1 = 10.220.0.0/23 VLAN2 = 10.210.0.0/21 I can't ping VLAN1 devices from VLAN2 and vice ...
0
votes
1answer
75 views

PBR with iptables

I know question was answered multiple times, but this situation a bit different. So here is what I have: All users must user default gateway on eth0, except one That one must only use gateway on ...
0
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0answers
24 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 ...
0
votes
0answers
118 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 ...
0
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0answers
237 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 ...
1
vote
2answers
322 views

How do I forward localhost traffic to a remote host with iptables?

I would like to set up my CentOS 6.5 box to forward connections to localhost (127.0.0.1) to the same port on a remote machine (e.g. 10.0.3.10). I've tried the iptables rule below, but when I attempt ...
0
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0answers
60 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 ...
1
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0answers
219 views

DRAYTEK - VLANs with VLAN tagging switches / router

Our company uses Draytek routers (various models, slowly upgrading to 2860n at each site). We have recently purchased a new site, and want to split the network up into separate VLANs, so as to ...
0
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0answers
27 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. ...
0
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0answers
179 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). ...
0
votes
1answer
20 views

Setting up a VPN with rules who can connect with who

For delivering updates and support on software I've been working on I have been thinking about setting up a VPN server. The idea would be that the clients are constantly connected but only the traffic ...
1
vote
1answer
209 views

How to set up the routing mail server with public static IP interface and private IP interface

I a building an email server that will use Postfix for SMTP, and Dovecot for IMAP. This server will have two interfaces: wwan0 - this interface has a static public IP address, and will be used by ...