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

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40 views

Forward traffic between VLANs with iptables

We're having the following 4 VLANs on my network, connected to an Ubuntu Linux box with DHCP. This Linux should act as the L3 router as well. VLAN 10 on interface eth1.10 with subnet 10.10.10.0/24 ...
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1answer
43 views
+100

Possible routing issues with OpenVPN

I'm trying to use OpenVPN on my arch box to be able to route some traffic through an OpenVPN connection, but not all traffic. But I'm having trouble trying to use my OpenVPN tunnel when using for ...
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0answers
10 views

Virtualbox NAT Network: Proxying a port for SSH is inconvenient [on hold]

I want to be able to SSH into a VM Guest of Virtualbox where the guests are sharing a NAT Network. LocalNat Portforwarding (See https://www.pythian.com/blog/test-lab-using-virtualbox-nat-networking/ ...
2
votes
1answer
36 views

Can't access server on loopback address, only on private address

I am running a rails web app server bound to 0.0.0.0 on port 80 like so: sudo rails s --port=80 --bind=0.0.0.0 I can access it at my private address http://192.168.0.13/, normally I can access at ...
0
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0answers
15 views

Ubuntu 14.04 VPN metrics

I have been using VPN on Windows server 2008 R2 daily. The problem came when I manually installed Ubuntu on my notebook (Ubuntu 14.04). It prefers first connected network interface if IP ranges are ...
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votes
1answer
33 views

simple routing don't work under debian jessie

I'm trying to set up simple enogh system with 3 virtual debian jessie machines: first connected to second and second connected to third. I want first one to be able ping third one. To achieve this, ...
0
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3answers
45 views

Linux kernel decision making process for routing table

I have question about routing procedure in linux kernel . Below is the version I am using. [root@server230 ~]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 7.1 (Maipo) ...
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0answers
23 views

linux veth use existing peer interface

I have a sit tunnel interface which I want to transparently connect with one end of a veth pair so that everything that drops out of the tunnel interface flows through the veth interface and vice ...
0
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1answer
12 views

Except some IPs from rule to not allow internet through openwrt + openvpn when vpn is disconnected

I have the following working setup on my network: A. ISP-Router (connected to inet, internal ip 192.168.0.1 ) <----> B. eth0 - OpenWrt Router (OpenVPN client running) br-lan (bridge eth1 + wlan0, ...
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0answers
16 views

Ubuntu 16.04 LXD No any communication between guests and master

Welcome. I had a little problem with my LXD server. On my master I have some guests systems (ubuntu 16.04 image), all of them are bridged to master and are in my local subnet at home, and have an ...
1
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2answers
31 views

Debian / IPv6: Default route expires after 1800 secs, loosing connectivity

I'm running Debian 8 on a vServer. After installing docker and enabling IPv6 i noted something strange. I don't know if docker has anything to do with this, it's just that i noticed this problem after ...
0
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0answers
14 views

SAVE default scope global nexthop in CENTOS 7

I have two internet connections from two different ISPs and I need to balance & failover the traffic originating to and from my network between the two ISPs. My settings: FIRST ISP (eno1): ...
0
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0answers
25 views

VoIP NAT to connect to companies of the same ip address range together

I am currently using packet tracer to configure the network for Company A. I have configured DHCP and telephony service successfully but the problem I'm facing is when company A tries to contact ...
0
votes
2answers
56 views

OpenVPN on OpenWRT: Routing a specific subnet through a VPN tunnel

I have setup a router with OpenWRT 15.05 installed (Chaos Calmer), and configured two wi-fi networks each with there own network interface: wi-fi-1: interface br-lan ip address 10.0.2.1; address ...
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votes
1answer
37 views

OSPF port number

What does that mean "OSPF runs over IP as protocol number 89" as it bypassing transport layer using some socket?
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3answers
42 views

AWS VPC VPN connection and NEXT-HOP issue

all- So, I have my VPN tunnel up between my DataCenter and my VPC. The device (terminating) is a PAN200, PAN OS 4.xx Traffic passes normally; SQL, RDP, AD, DNS, etc and PING from AWS side to DC side ...
0
votes
1answer
13 views

How do I route traffic over the a tun0 device (IPSec VPN connection)?

I've set up an IPSec VPN tunnel between my laptop and work. The tunnel gets established, but routing does not. The relevant part of ifconfig is : eth0 Link encap:Ethernet HWaddr ...
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votes
2answers
92 views

No internet access, but DHCP gives out IP?

I'm following EliTheComputerGuy's Windows Server 2012 tutorials to setup my Windows Server and office computers with Active Directory: https://www.youtube.com/watch?v=ZfsXh_LSkgE I want to setup ...
0
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0answers
5 views

Ubuntu as a IPv6 router not taking default route from upstream RA [migrated]

I've got an Ubuntu 14.04 box that acts as my home router. I've got an IPv6 /64 delegated by my ISP, and I'm using RA and the WIDE DHCPv6 client to configure IPv6. Everything works well, except no ...
0
votes
1answer
26 views

Traffic from within Docker containers routing incorrectly— traffic from Docker host routes correctly

I'm seeing a weird problem where traffic originating from within a Docker container located on a VM in the Google Cloud in europe-west1 and destined for a UK company based in Amazon's Cloudfront is ...
0
votes
1answer
71 views

Hyper-V dedicate network adapter to 1 VM

I have one windows server, 2 network adapters, 2 public IPs and I want to route/port redirect each IP to one of VMs (so I can host on :80) At the same time I want to partially use one of the IPs to ...
0
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1answer
48 views

Ip addressing for serial routing

I have the following packet tracer diagram: I have range of ip address : 10.0.0.0 - 10.0.255.255 I need to assign ip addresses from this range to the routers' serial interfaces as well as subnet ...
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0answers
31 views

UDP tunnelling outside OpenVPN

this is my first post. I have already looked for solutions but I haven't solved my problem at all actually. I have a linux server connected to a OpenVPN server whose service I pay for. This provider ...
2
votes
1answer
93 views

Routed bridge networking for KVM guests along with eth1 alias interfaces for shared hosting with dedicated IPs for each virtualhost

First question here on serverfault, so kind of a newbie, all feedback is welcome. I have a dedicated server running Debian GNU/Linux 8.4 (jessie) with one public IP and multiple additional public IPs ...
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0answers
24 views

Packets dropped connecting to Azure VM through Point-to-Site RM Gateway

I've setup a point-to-site Virtual Network Gateway using the Resource Manager model. I followed both of these instructions: ...
0
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0answers
18 views

Hairpin NAT with dynamic WAN IP [migrated]

I have a dynamic WAN IP so if it changes my iptables will no longer apply. Here is my working hairpin nat, where x.x.x.x is my WAN IP br0 - LAN eth1 - WAN -A PREROUTING -d x.x.x.x -p tcp --dport ...
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0answers
22 views

Internet throught VPN in local network, using windows 7 as router

I have windows 7 (192.168.1.0/24) using as router in SOHO network. Everything works fine until I'm creating openvpn connection on windows 7 (10.0.0.0 mask 255.255.255.252). Windows 7 machine has ...
1
vote
1answer
27 views

Route ipsec to openvpn with iptables

I am not a very experienced user but I do have determination, after a week with no progres it is getting rough. I have two NIC, one facing to the internet and one towards the internal network. Both ...
0
votes
1answer
24 views

Is it possible to set up a 'wildcard' subdomain in IIS so that any subdomain can be used and routed by the application?

My first question on ServerFault..be gentle :) Is it possible to set up a 'wildcard' subdomain in IIS (assume version 7 or later) so that any subdomain can be used and routed by the application? For ...
1
vote
2answers
33 views

OpenVPN per user rules while not routing Internet traffic

EDIT: I know that learn-address is what I would need to use to call a script (as specified in the openvpn-netfilter project) to set the firewall rules. I guess my question is more related to the ...
2
votes
2answers
86 views

Issue with site to site OpenVPN

So my end goal is to utilise OpenVPN to connect to a remote IP camera. The reason I am going down the route of OpenVPN is to try and overcome the carrier grade NAT that prevents me from doing port ...
0
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0answers
12 views

How to make a local interface, accept a packet that's coming from another local interface which is destined to the first one

before starting, let me say that I'm not talking about ip forwarding. ip forwarding is enabled and working. My problem despite being hard to explain in one sentence, is rather simple, and yet it seems ...
0
votes
0answers
30 views

Cisco 3750 intrer-VLAN routing not working

I've defined three VLANs on my 3750 switch. I've also enabled the routing on it. It is a standalone switch. But the routing is not working between the VLANs. I don't know what to do. There is the ...
0
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0answers
17 views

Iptables linux routing with 2 chain proxies

Im trying to setup a connection between a PCs in my local network, to foreign resource XYZ in a specific way. My network is currently configured like this: I have a pc behind the proxies -> Then I ...
1
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0answers
25 views

Route all traffic from virtual interface to temporary tun0

I'm trying setting up at home an automated torrent client to download some big GIS databases I produce at work and release as .torrent files. My home server is a Raspberry PI with one Ethernet ...
1
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0answers
12 views

Is there a way to tell a machine accesible via a gre tunnel to join multicast groups via pimd or smcroute?

this has been stumping me for some time and would love any help on this. So I am subscribed to a data vendor through an intermediary firm. The intermediary firm has physical connections to the data ...
1
vote
1answer
31 views

Connect virtual subnets from two physical host

I have proxmox 4 based on debian 8 on two hosts A and B. Both have two NICs. One NIC from each host is connected via a Crossover cable. Host A: eth0: public IP eth1: 10.0.0.2/24 vmbr1: 10.0.0.1/24 ...
1
vote
1answer
38 views

make kernel select a different IP-adress as its source

I'm running an ubuntu router using quagga. The router has many virtual interfaces each connected to a different upstream partner. One of these virtual interfaces is connected to an IX. The IP assigned ...
0
votes
0answers
32 views

Codeigniter links not working without index.php

I have a code igniter application that used to work properly in wamp, but after shifting to lamp it stopped working normally. Also I have used Modular Extensions to make my app follow HMVC Only the ...
1
vote
0answers
20 views

How should I use Cisco ASA 5510 and Catalyst 3550 together

So I took on a project at my job moving four separate networks into one Colo center. Currently I broken everything down from the four networks into 4 VLANS on the ASA 5510. Each are assigned IPs ...
1
vote
1answer
128 views

How would I get this routing to work between the two subnets? Unsure if i am over-complicating my network

I am attempting to operate 2 subnets, the first subnet on range 192.168.0.0/24 is free to access anything it wants, including machines on the second subnet. the second subnet on range 10.0.0.0/24 is ...
0
votes
1answer
41 views

Traffic refuses to go over VPN interface

I've set up a VPN tunnel, and encountered an interesting issue. With fixed routes set up (say, to 8.8.8.8), everything is fine. Packets get sent over that interface, and responses are received. The ...
1
vote
1answer
24 views

Juniper SRX routing based on network

So, a Juniper SRX 220 in a shared use building. Two networks, 192.168.30.0/24 (The shared use) and 192.168.31.0/24 (the private network). We had once cable modem, and it currently allows only the ...
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votes
1answer
20 views

Two physical web servers on port 80 behind a router [duplicate]

Current scenario I have an Apache server running on default port 80 on a CentOS 6.7 box. I forward port 80 from my router to this machine, and I can access it from the outside with my domain a.com. ...
1
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0answers
44 views

IPv6 Routing // Destination unreachable: Beyond scope of source address

I want to setup Dual Stack on Customer VMs. The Router is a VM too. Running on Debian Wheezy. Overall virtualized by ESXi. IPv4 is working fine. Ping from Customer VM ping6 -c 1 heise.de PING ...
1
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0answers
57 views

forcing proxy traffic to route via a specific 3G dongle interface

I've searched for details on how to do this but I've been unsuccessful - I wondered if someone could offer up some advice. I have 2 network cards (LAN and 3G in my case), LAN is my main interface ...
2
votes
1answer
79 views

How do I set up the default route on a Linux router with dual ISP links?

So, here's the situation. I have dual ISP links currently active and working for routing traffic from my network, with a very similar iptables setup to the accepted answer at Load balancing & ...
2
votes
2answers
56 views

Is it possible to set up a web server on the same domain used by Active Directory? [duplicate]

I'm a web developer at a large-ish organization and our web site is hosted by our IT department. Our website will not load without the "www" subdomain in front of it and IT says that it's because ...
1
vote
1answer
25 views

Forwarding ports from one bridged interface to a guest container on host OS

I have a simple configuration. Mind map how everything look like So I have a structure: Proxmox Host OS (vmbr0, vmbr1) Container 1 (eth0) Container 2 (eth0) The Proxmox networks: vmbr0 ...
0
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0answers
26 views

SSH to OpenVPN Connected System AND Tunnel through VPN

I want to SSH to a Docker system running Debian (latest), with OpenSSH, and OpenVPN installed. I also want to create a Dynamic forward (SOCKS proxy), and I want it route through the VPN connection as ...