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

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24 views

How to route unknown client IPs back down their respective PPTP VPN tunnel?

I have a server that accepts VPN connections using PPTP. I'm testing the setup process for various PPTP clients and i've come across a specific issue with Android clients. Packets arrive from the ...
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0answers
214 views

FortiGate 310B public ip pool into internal port

I have a FortiGate 310B with WAN port with /27 public IP pool from the ISP. The WAN port is configured with primary IP 1.1.1.1/27 I would like to provide servers within the Internal port a public IP. ...
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1answer
52 views

Routing between two servers via a virtual interface

I have two servers, each running an openvpn service, the first one (uno) has the vpn range 10.170.0.0/16 tied to UDP 1194, and the second one (dos) has 10.180.0.0/16 tied to TCP 443. I would like to ...
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1answer
90 views

Amazon VPC NAT instance routing problems

I have an issue with routing. I have 2 public subnets: 172.31.1.0/24 and 172.31.100.0/24 In each of these I have a NAT instance. Each NAT instance is an OpenSwan VPN peer to a remote location. This ...
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2answers
67 views

Reaching Local Network which is under NAT with no public IP

I have a place called (lets say) REMOTE. REMOTE is connected to the Internet using 3G/4G Modem + Router. Unfortunately my mobile Internet provider does not give me public IP address. In REMOTE I have ...
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0answers
24 views

Glusterfs network assignment

I'm setting up a test system with a distributed, replicated GlusterFS volume. I currently run 2 nodes with 2 NICs each. The idea is to have replication and all other gluster internals on one network ...
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1answer
100 views

Remove the unspecified gateway from linux routing table

I've a remote linux machine whose the routing table is : [root@hostname]# route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 ...
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2answers
79 views

Send PHP requests from dedicated IP instead of shared IP [closed]

I have set a dedicated IP for a website (using directadmin), but all outgoing php requests are sent from the server's shared IP. Result of the following code is always the shared IP. $a = ...
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1answer
344 views

systemd-networkd and direct routes

I have problem adding direct routes through systemd-networkd. What I'm trying to achieve is similar to: ip a a 192.168.0.2/32 dev enp0s3 ip r a 192.168.0.1/32 dev enp0s3 ip r a default via ...
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1answer
372 views

Linux: Bridge two NICs and route traffic through VPN tunnel except specific destinations and ports

I have a Linux PC (Debian Wheezy) with two Ethernet adapters. Adapter eth0 is connected to the Internet (modem/router/DHCP/firewall thingy) and eth1 is connected to an WiFi access point. All other ...
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1answer
81 views

Linux route cache seems to load outdated settings

On SLES 11 SP3 (Kernel 3.0.101-0.46) I see the following route behavior: When I set a route specific MTU once via ip route change ... mtu lock 1500, everything works as expected (setting an MTU of ...
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1answer
235 views

Why does a router ping failure respond using a different IP?

From Windows CMD, when trying to ping another computer on our internal LAN, the IP obviously fails to respond. However the reply of "Destination host unreachable." comes from yet a different IP, and ...
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0answers
52 views

Domain routing to incorrect domain on Digital Ocean server

I have 2 sites hosted on my LAMP droplet. The subdomain.domainX.com site is routing to domainY.io I have 4 configuration files in my /etc/apache2/sites-available: default, default-ssl.conf, ...
2
votes
3answers
176 views

Advanced dynamic routing with external program

I need to build a system in which i am able to route packets based on a number of parameters, such as port/protocol etc, which are somehow "normal", but also on other aspects, such as queue length, ...
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1answer
30 views

Barracuda Web Application Firewall WAF - HTTP - Barracuda Does Not Filter Links Clicked on Page

I am trying to figure this out. Basically the virtual IP 192.168.1.110 will filter port 80 to the real ip address 192.168.20.110. I can confirm this in the logs. When I click any link on the page ...
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0answers
91 views

Deploying SSTP VPN on Windows 2012 - How to route packets to other servers?

I've finally managed to deploy an SSTP VPN between my Windows 2012 (non R2) server and Windows 7 client. It's amazing how much easier it work with a real certificate and avoiding the self-signed ...
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0answers
142 views

Port forwarding to different subnet

I have two routers: router A with internet access, and router B acting as wireless access point. Devices are attached to router B via ethernet. I need to forward some ports to PCs attached to router ...
2
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1answer
138 views

How to find which routing protocol a router is using. And if found how to test it

I was recently asked a networking question in an interview which I did answer but the interviewer was not pleased. The question was : "Given an actively running router, how would you know what ...
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2answers
354 views

How to route outbound traffic for a particular destination IP address to GRE Tunnel in CentOS?

Hello I am trying to configure a network like this network diagram :- Well I have to create a GRE Tunnel at my alpha server and route some particular traffic to GRE Tunnel.I want to do the configs ...
3
votes
1answer
214 views

2 NICs, same subnet, different default gateways

I have a switch on which 4 modem/routers and 2 servers are connected. Each server has 2 processes running and 2 NICs connected. What I want is that each process is routed out of either one of the ...
0
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1answer
85 views

How to connect Network and GRE Tunnel Traffic and control and flow of TCP/UDP Packets?

I need some serious help with a complex routing setup I am doing. Lets I have a /24 IPv4 .I am announcing the same /24 at two different locations. One is a ISP exchange center where all the ISPs peer ...
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1answer
163 views

VPN client acting as gateway for the rest of the LAN

To have a simple scenario, let's say we have: Office: Four computers running Debian and another computer running CentOS. HQs: A Debian running the VPN server which is located at the central HQs. ...
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0answers
163 views

Routing for NAT and site-to-site VPN with RRAS

I'm trying to set up a split-tunnel site-to-site VPN using an RRAS server that is currently doing NAT. Right now, the NAT works: all clients are assigned an IP address in the 192.168.2.0/24 range, and ...
16
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3answers
1k views

How do I make actual use an IPv4 block that I own?

We (a small French company) had reserved an IPv4 /24 block (256 addresses) from RIPE-NCC, over 20 years ago, but never used it. Update: our assignment belongs to the "Provider Independent (PI) address ...
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1answer
82 views

How to route from Ubuntu server with two ISP connections?

At the office we have a server with a single $SERVER_IF having a local IP address $SERVER_IP_MAIN=192.168.1.12/24 behind an ADSL router $ROUTER_MAIN with a static external IP address from $ISP_MAIN. ...
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0answers
85 views

Google Domains: Dynamic DNS

Google Domains support Dynamic DNS. That is great, as my domain and Dynamic DNS information can come from the same provider. For Dynamic DNS to work, I usually need the following info: Update URL ...
2
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3answers
328 views

Remotely connect to device with ip from different subnet

I have to figure out some way to remotely connect to D-LINK switch currently working on default address 10.90.90.90 (service guys have replaced broken one, but they have forgotten to do initial ...
3
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5answers
329 views

Router limits network performance but its CPU load isn't 100%

I'm using a PC Engines APU device running FreeBSD as a NAT router. The setup is very usual: one WAN connection and one LAN connection. Theoretically, WAN connection is 800/40 Mbit/s and the LAN one ...
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0answers
38 views

DirectAccess Multiple Subnet Deployment

I am looking at doing a DirectAccess rollout on AWS using a single Server 2012 R2 instance behind an edge device. My clients are mostly running Windows 7 Pro/Ultimate, but there will be some other ...
3
votes
2answers
144 views

How to connect 2 networks without access to router config?

I am trying to connect 2 devices in different subnets. Device 1: IP address: 172.20.35.1 netmask: 255.255.0.0 gateway: 172.20.1.1 Device 2: IP address: 172.20.100.100 netmask: 255.255.255.0 gateway: ...
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1answer
81 views

Route port forward through 2 windows server 2008R2 network adapters to another network

our phone system at work is on a separate network to everything else and I need to forward a port from our gateway to it to allow our phone tech to remotely administer it. I have plugged the phone ...
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0answers
185 views

Routing Issue - can't ping gateway from other routers in full mesh

I am setting up a new network. I have 4 routers in a full mesh. Edge1, Edge2, Client1, Client2. This are Mikrotik Cloud Core Routers (not that it matters). They are set up with OSPF (distributing ...
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0answers
174 views

Mikrotik - routing a single address, part of a direct accessed subnet

I have a Mikrotik RB2011 and several TP-Links - WR740N, located at different geo locations, part of my ISP MAN network. My ISP provides me with an (static) address/mask and a gateway for each device. ...
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0answers
69 views

How to set up a Linux gateway for multiple WAN networks?

I have a network with the following IPv4 and IPv6 addresses: eth0 Link encap:Ethernet Hardware Adresse 30:85:a9:42:3e:60 inet Adresse:109.2xx.239.145 Bcast:109.2xx.239.255 ...
0
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1answer
182 views

How to Setup OpenVPN as Internet-Gateway and Connection between multiple Private networks on Virtualized Server

I am trying to implement the following: Network A (e.g. 192.168.1.0/24) with Router (192.168.1.254) Network B (e.g. 192.168.2.0/24) with Router (192.168.2.254) Online vServer for VPN (e.g. ...
0
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1answer
70 views

HP RIP on LAN Topology

We have 1 main core HP Routing Switch in server room that connects other data closet switches and 6 Data Closet switches that connect the clients. We only have 3 VLANS. I have 2 questions: 1.) ...
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1answer
54 views

What is the purpose of these routing tables

I examining a debian router's configuration. Route output: 71.71.71.0 0.0.0.0 255.255.255.224 U 0 0 0 eth1 10.0.0.0 0.0.0.0 255.255.255.0 U 0 0 ...
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1answer
187 views

ubuntu route all client eth0 traffic to openvpn on client tun0

OpenVPN client has 2 physical interfaces: eth0 = 192.168.10.14/24 gw 192.168.10.1 eth1 = 192.168.10.17/24 gw 192.168.10.1 tun0 = 172.160.1.6/24 gw 172.16.1.5 Server is external somewhere listening ...
0
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0answers
44 views

vpnc router on CentOS not forwarding the rensponse

I'm mounting a vpnc router on an openstack environment. I mounted a CentOS Server with ip_forward enabled and iptables, with local IP 192.168.2.2. The remote network is 10.0.0.0/8 and the local ...
0
votes
2answers
103 views

EC2 multiple outbound IP addresses setup

I've looked everywhere and haven't found a good solution to the following problem: I'd like to set up an ec2 instance with 2 public ip addresses, with 2 rails servers each using one IP address. They ...
0
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0answers
82 views

OpenVPN Traceroute Issue

I have the following basic OpenVPN configuration: Datacenter Side: Subnet: 192.168.168/24 WAN->Router(192.168.168.1)->OpenVPN Server(192.168.168.200) Config File: port 1195 dev tun remote ...
0
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2answers
102 views

How to prevent Zeroconf 0.0.0.0 in Gentoo linux?

Oddly enough, it seems that one of the servers we have doesn't like having the 0.0.0.0 configured and it prevents it from being able to community on its internal network. Removing this route manually ...
0
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1answer
130 views

What's the difference between a private and public subnet?

For the purposes of learning, I'm trying to setup a public/private VPC in AWS without using the wizard, and I'm trying to determine how AWS decides if a subnet is private/public. For argument sake, ...
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2answers
119 views

Route external ip through internal network windows

How can I route an external ip from one server by first forcing it to go through another internal ip? In our network setup, the source server is connected to the internet on one network card. The ...
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1answer
85 views

nginx: routing multiple URLs to one html file

we render part of our site to static files, similar to what jekyll does. For instance, we have files: index.html about-us.html the problem is, sometimes the names change and we end up with: ...
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1answer
143 views

Linux firewall, ADSL bonding, two default routes

I am trying to set up a Linux firewall (ubuntu 14.04) to use two bonded ADSL lines for load balancing purposes. I found by searching the forum link to this: ...
2
votes
2answers
5k views

Server sent passive reply with unroutable address when connecting to FTP site with FileZilla

I get the error "Server sent passive reply with unroutable address. Using server address instead." when connecting to a FTP site (not SFTP). I have connected to this site many times, however ...
0
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1answer
42 views

Is there any solution to change the source IP from outgoing WAN A to receiving WAN B?

I am configuring a office router for crossing the GFW in China. I want to use WAN A(actually a low bandwidth VPN tunnel) only to send package to target servers (YouTube for example). And change the ...
0
votes
1answer
37 views

IP route not on default gateway

I am trying to setup a network that is only accessible if you go through the '10.222.3.1' switch. It is a test environment that we do not want interfering with our production environment. The trouble ...
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1answer
349 views

How to make connections answer from the same gateway they entered in RouterOS?

I have a MikroTik RouterOS 6.23 device, and my network is as follows: Router | |-- bridge1_LAN (wlan1 + ether1) (192.168.0.210) -- LAN (192.168.0.0/24) | Here is where computers are. Those ...