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

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13 views

connect to server in seperated lan (using openwrt)

I am using openwrt with the following setup: --------------- | |--- LAN1 192.168.1.1/24 WAN 194.X.X.X ---| openwrt-box | ...
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0answers
14 views

How to route multicast traffic under Ubutun 14.04

I am trying to achieve a very simple goal here, which is to set up a iperf server on my desktop machine to receive any incoming traffic, joe@longbeach:~$ iperf -s -u -B 224.0.0.1 -i 1 ...
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0answers
32 views

Ping is happening but arp is not resolved

I am seeing one interesting problem. I have setup two devices connected through lan cable over eth3 interface. Now a vlan session has been created on both the interfaces. Device 2: root@10:~ ...
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0answers
18 views

forward vpn traffic from tun1 to tun0

I've been banging my head on this for a while and gave up trying to figure it out. My knowledge about routing and iptables is just too limited to understand this it seems. I have configured a split ...
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0answers
11 views

OpenVPN server routing issue [on hold]

Background: I don't like Hamachi for LAN Gaming, it doesn't work because most of the games only scan one IP range. For example, it only scans 192.168.1.1 to 192.168.1.255 because this is the main ...
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1answer
57 views

Is there a cloud-based reverse proxy solution in AWS?

The system I have an API deployed on EC2 machines on AWS. Incoming HTTPS requests are passed to an elastic load balancer. The load balancer handles the SSL, and passes the request to an Nginx ...
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1answer
8 views

Reverse proxy requests based on http:// or ws:// in request header

From a previously asked question I know that I can route requests to a different servers with reverse proxy, such as mod_proxy for apache. My question is, before I dig deeper into its setup, which of ...
0
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1answer
29 views

Redirecting Public IPs to jails

My plan is to set up a server where I have several jails. Currently, I am planning on running three of them: a webserver, an owncloud server and a Teamspeak 3 server. I got it running so far that I ...
0
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1answer
22 views

Route HTTP(S) traffic to specific IP based on requested URL on Linux

I have an Ubuntu Server in the cloud. Let's call it ServerA. ServerA has an apache2 installed and is serving a default page on HTTP requests. mydomain.com is pointing to the ServerA's IP and thus the ...
2
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1answer
49 views

How to get local ip address associated with default gateway

There may be several network interfaces on a server, e.g., lo, eth0, eth1 From the route table, I know that eth0 is connected to the default gateway. The address of the default gateway, for example, ...
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9 views

One of VPN clients cannot connect to some remote computers

I am baffled. We have openvpn server and have many clients on 10.128.28.xxx network that are able to connect to all our networks. I installed vpn client on one windows box - for some reason that box ...
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16 views

Getting server to reply to client via either network (they can see each other in multiple networks)

I have multiple internal networks, each of them also corresponding to a different VLAN. There's a firewall that acts as the gateway for everyone on every network. It has multiple interfaces, one on ...
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7 views

use of secondary public IP subnet in Sonicwall NSA firewalls

I have a Sonicwall NSA 3500/4500 firewall. I have a primary block of public IP addresses that are working fine but I need to utilize a second block of IPs that are routing over the primary from the ...
0
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1answer
36 views

Linux virtual server, direct routing (LVS/DR) on VPN

Is it possible to set up Linux Virtual Server on VPN? The real servers should lie on the same LAN segment. I want the real server to be a non-LAN server connected to the Internet. Could it be ...
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20 views

Dnsmasq , redirect all but google.com

My router uses dnsmasq. In my dnsmasq.conf, I write: address=/#/127.0.0.1 in order to resolv any domain to my local server. It works. Now I'd like to make possible to join www.google.com. Any other ...
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1answer
28 views

Use multiple WAN IP addresses on a single VLAN

Our ISP has given us a /25 range of IP addresses on our lease line. We want to be able to create several VLAN's and direcly assign each VLAN with any number of these WAN IP addresses. For example - ...
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0answers
30 views

BGP routing table [closed]

I'm currently trying to understand how BGP works. Unfortunately, I'm running on an OSX system and tried to install some BGP simulation, i.e. Core, Imunes, psimulator2, c-bgp, for hours without ...
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0answers
25 views

Different gateway per command

I have a network with multiple gateways and one is set as the default gateway on a server. I want a single specific command to use a separate gateway for all its traffic. How would I achieve that? ...
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0answers
15 views

Setup server hosting hyper-v as a router

I have a windows 2012 server hosting several windows VMs by hyper-V. As I was building this infrastructure at home all VMs got IPs assigned from my home router (DHCP). So both hyper-v manager and VMs ...
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0answers
15 views

Assign a public ip to openvpn client

For learning purposes, I'm trying to set up openvpn server, so that each connected client would get a unique public ip address. I have a vps server and I ordered extra 8 static ips and they are ...
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0answers
18 views

Bizarre routing table name resolution issue with openvpn

I have been having some rather odd issues with my routing table. I am running a Debian Wheezy system, and for a while now, whenever I connect to my home wireless network AND my VPN server, (but not ...
1
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2answers
51 views

setting up linux router

I have setup three Ubuntu VMs in vmware. These are connected as: Now I want to use UBUNTU2 as router, so that when I run these commands in UBUNTU1, I get response from UBUNTU3, commands: ping ...
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29 views

Multicast destination NAT on same network interface, with netem

For testing purpose, in a big network where IT will shoot me if multicast data are not streamed in the right VLAN, I am trying to degrade multicast packets with a server running netem configuration. ...
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0answers
32 views

Ubuntu 12.04 Router Firewall TTFB Delay

I use Ubuntu Server as my router/firewall for my network for a number of reasons. Until recently, I was using 10.04 with great success for this purpose. The OS provides DNS lookup and DHCP using ...
0
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1answer
20 views

Cant route traffic through OpenVPN on Debian 8

I have been trying to setup OpenVPN and have run into a bit of a hiccup, i have can't seem to route all my traffic through the server. I can connect to the server just fine but i can't seem to ping ...
0
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1answer
30 views

Gateway can't ping client

I try setup a new gateway in my virtual network. But sure I' have a problem. The Gateway cannot ping client but client can ping other client and gateway. So I have check my iptables rule (I does'nt ...
0
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1answer
25 views

OpenVPN client nslookup failure after disconnect

Currently I am trying to route my traffic through a gateway running Debian Linux which forwards all incoming traffic thorugh a VPN connection (Client -> Gateway with OpenVPN client -> VPN server -> ...
5
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1answer
44 views

Prevent hijacking IPs in KVM/libvirt

How can I prevent a VM user/client from accessing IP addresses he doesn't own but are routed over the same bridge on KVM/Libvirt? IP addresses are routed to a cisco switch vLan consisting of a /24 ...
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2answers
33 views

Can ping server one from client 1, but can't ping client 1 from server

I set up a router on my linux machine as described here. Now I can ping the server/router from my windows client. I can also ping my linux client from my windows client. But I can not ping the windows ...
0
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1answer
43 views

centos doesn't reply to icmp request

I have the following situation: Centos7, 2 NIC with following setup: em2(NIC2) : 82.79.24.74/29 82.79.24.75/29 em3(NIC3) : 192.168.0.240/24 192.168.133.240/24 ...
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2answers
50 views

How to set up iptables for local router machine

I have set up a local linux (14.0.4 Ubuntu) machine as a router and can do the following ping server/router from the clients ping clients from server/router ping one client from the other ping the ...
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0answers
17 views

Vyatta or VyOS can support odd or even IP source routing or not

I tried to configure the even/odd policy for IP source routing in Vyattta/VyOS, but I get the below error message: Configuration error: "0.0.0.1/255.255.255.254" is not a valid IPv4 subnet ...
0
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1answer
29 views

How can I do site-to-site OpenVPN routing without NAT

I have two OpenVPN servers at different location. Each machine in one location can ping and connect to every machine in the other location. My problem is when I use SSH to connect from machine A in ...
3
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0answers
45 views

some IPs within a subnet not reachable

I'm running 3 Debian-Servers, each with its own IPMI. All IPs are within the same subnet with the same gateway. The problem is, that each server can ping its own IPMI but not the IPMI of the other 2 ...
0
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2answers
39 views

Accessing server on private network

I have several IP based data-loggers behind a customers' gateways/proxies/etc. Around every couple hours, the data-loggers will act as clients and initiate communication in order to upload trend data ...
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0answers
8 views

Mikroti - route between 2 public adresses

I have 2 public addresses on mikrotik. Both using nat, but first is for normal users and second is for servers that I use on public network. I need to connect to second ip and services behind second ...
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28 views

Strongswan ipsec linux not passing traffic after established

I currently have two PFsense routers that connect over the WAN using a similar configuration and traffic is passed with no issue. I'm trying to set up a 2nd path over 4G WWAN and have to use linux ...
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10 views

Cannot connect two different networks on rhel6 on 2 virtual NIC's

I have a RHEL6 machine on VMware with 2 Virtual NIC's. The output of the ip's and networks are as below: $ ip a|grep "inet" inet 192.168.17.128/24 brd 192.168.17.255 scope global eth0 inet ...
3
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1answer
45 views

Odd Routing Issues With LAN & VPN

I'm having some strange issues with traceroute. I have seen this happen before, but never on my local network. When I run traceroute to a host that is litterally one hop away on my lan, this is the ...
0
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2answers
26 views

Allow others to use a server-to-server IPsec connection

I have an issue concerning secure IPsec connection between two servers over the internet. One belongs to us and lives in our data-centre, and one belongs to them. I need to somehow let members of my ...
1
vote
1answer
16 views

How to access special website thought VPN?

I have two SSG5 to build up an route based VPN with static global IP, I want site A to browse the special (external site) via the site B network. Google Site A --> Site B ...
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0answers
47 views

Network Configuration - Multiple Vlans with Domain Controller

I am new to the community and somewhat new to networking/server administration in general and need some help with my network configuration. Currently my network is somewhat small, we have about 10 ...
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0answers
26 views

Linux: even with route, packets not going over the interface

I apologize but this is a question I jotted down when debugging another problem, so I can't provide any additional information. Anyway: suppose we have no firewall rules, and the following route ...
2
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1answer
31 views

Shorewall: VPN clients can access LAN resources, but not the Internet

I set up a network in my studio's office with a Raspberry Pi serving as a VPN server for remote clients to access LAN resources. Router port-forwards 1194 port to RPi, so it's accessible from the ...
3
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0answers
41 views

How to split traffic through two different network adapters based on TCP port in OS X

I have a scenario where we will be using a Mac to stream video content to an RTMP server. This RMTP service provides 2 ingest URLs so that you can upload the same video content twice and have ...
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0answers
26 views

How to correctly setup Shorewall on VPN server connecting VPN clients to server's local network and vice versa?

I'm having some problems with my network setup. It looks something like this: The goal was to create a VPN server inside the local network that will a) Allow VPN clients to access local network ...
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1answer
34 views

Iptables DNAT working in my own network, but not through VPN

For some reasons I need to switch a server ip to another ip, in order to be seen by another computer elsewhere through vpn. So I'm using iptables (didn't know any of that until yesterday) and testing ...
1
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1answer
62 views

Routing between pfSense Subnets and IPSec VPN

I have a pfSense Router, which is the endpoint of a site-to-site IPSec VPN. In the pfSense the main LAN Interface is 10.0.2.1/24 and it has a virtual IP 10.0.125.1/24 The IPSec Phase 2 connects the ...
1
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1answer
29 views

Does switching routers when using same IP cause temp downtime?

Still learning networking but from my understanding MAC Addresses are what route network traffic so if I switch out a router but configure them with the same IP does it take time for the new MAC ...
2
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0answers
60 views

OpenVPN allow two clients to connect to each other without using client-to-client globally

I'm running OpenVPN 2.3.7 on CentOS 6. I'm using routing (tun) and have two instance of OpenVPN. On the second instance there are two clients that I'd like to be make visible to each other i.e ping, ...