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134 views

Problem with routing using Shrew Soft vpn

Ran into a little bit of a trouble with the Shrew VPN. When I try to connect over vpn, I get ridiculously low speed (0.3k / sec) under Ubuntu. I tried this under Windows and all is perfect in the ...
0
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0answers
126 views

How to use multiple wireless adapters to route traffic based on target

I have multiple wireless adapters (let's call them wlan0, wlan1) and I can connect to multiple networks (let's call them network0, network1) at the same time. Now, what I want to accomplish is, route ...
0
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0answers
159 views

Wireless lan connection stops working after 3 pings or after loading one web page

My boss asked me to install Ubuntu 12.04 LTS 32 bit on an old-ish laptop with an external US Robotics Wifi card and an internal ethernet card. I have gone through all the painful hops about installing ...
0
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1answer
119 views

Is my OpenVPN connection doing its job?

My first question is whether or not my openvpn connection is working as it is supposed to (routing all network traffic via the tun0 interface). When I type netstat -rn I get the following: $ netstat ...
4
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0answers
2k views

Integration multiple internet connections ISPUnity vs Ubuntu Bonding

I have Ubuntu 13.04 with 2 ethernet cards and a WiFi card. I also have 3 ISP connections. I have to configure linux to use all 3 connections. My main concern is to increase outgoing bandwidth (FTP ...
0
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1answer
193 views

How does a computer decide which network interface to send traffic to?

I have a computer (Ubuntu) with one wired and one wireless network interface. The wired one is statically assigned and connected to another single machine with a statically assigned address. The ...
0
votes
1answer
923 views

Add a virtual interface to the same subnet and route both

What I am trying to accomplish is extremely close to this, with one twist. I want the second "nic" to be a second ip address (I guess sometimes called a virtual nic), added to the same physical nic ...
0
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1answer
1k views

Forwarding multicast packets in wired-wireless-nat-router

I am receiving IPTV (multicast) from my ISP (Deutsche Telekom) and it is already working without any issues for the main receiver which is directly connected to my dsl router (AVM Fritz!Box 7390). ...
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2answers
25k views

Set up permanent routing (Ubuntu 13.04) [duplicate]

I have 2 connections: wlan0 (gw: 192.168.1.1) and eth0 (gw: 192.168.2.1). My default connection is wlan0, but I wanted some websites load through my eth0, so I set up routing for those websites/IPs ...
4
votes
1answer
12k views

Forwarding traffic between 2 interfaces

I have 2 VLANs connected to a 'router'. All the machines can ping other machines within their own VLAN and the router. The router can ping all of the machines. I am trying to get machines to talk to ...
1
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0answers
343 views

Permenant Route Addition

I'm trying to add a route permanently to my VPS, at the moment I have to run the command manually every time I find out the server has rebooted. I read somewhere I had to add something to ...
2
votes
3answers
4k views

Trying to enable IPv6 results in a “No route to host” error

I'm configuring a dual stack network on a KVM server using static IPv4 and IPv6 addresses furnished by my provider. I input all addresses, nameservers and gateways as required when installing Ubuntu. ...
2
votes
1answer
2k views

Help configure multiple network interfaces

I'm running Ubuntu inside a VM on my work laptop. I have to run my VPN software on my VM Host system and need access to my VPN network from within my Ubuntu VM. I can set my VM's network interface to ...
4
votes
1answer
9k views

How to route all internet traffic through Tor (the onion router)?

Could you explain how to route all internet traffic through tor? I am using Ubuntu I really don't know how to do it. Actually I am using tor for twitter only, and I'm afraid of DNS leak. So I need to ...
1
vote
1answer
502 views

Ubuntu server routing table

i've a ubuntu server (13.04) with 3 NICs. This is my routing table: Destination Gateway Genmask Flags Metric Ref Use Iface default vodafone.statio 0.0.0.0 UG ...
1
vote
1answer
3k views

Forward TCP Connections with Iptables

I receive connections to my server from several ip addresses I want to route these connections just like rinetd does but based on the ip the connection is coming from to connect to a specified host. ...
1
vote
2answers
2k views

How to control the up order of network interfaces?

I have /etc/network/interfaces as follow. Every time the system boots up, the route is wrong so the gateway is not reachable. I'd have to ifdown br0 && ifup br0 to fix the route table and make ...
0
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3answers
99 views

Routing example.com/page to example.com:[port]

I have a server with multiple services running, for example: subdomain.example.com:1234 subdomain.example.com:1235 subdomain.example.com/1236 Accessing these directly will take me to the web gui ...
11
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2answers
29k views

How to make IP forwarding permanent?

I know that I can enable IP forward by echoing 1 to /proc/sys/net/ipv4/ip_forward, but how can I make this permanent? By the way I want another method rather than start up scripts, is there any?
2
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1answer
1k views

OpenVPN - Routing issue

Server: Ubuntu 11 (Openvz VPS) Client: Windows 7 Issue: clients connect successfully to VPN, but loss of internet access once inside the VPN. Facts: Everything mostly defaults Is a ...
1
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0answers
79 views

A strange routing problem

I built a router based on ubuntu server 13, which connect to the internet by VPN (yes, by pptp-linux). And I installed squid3 on the same server. I can visit all websites (facebook and twitter ...
1
vote
1answer
204 views

How to IP forward only between 2 interfaces out of 3 installed?

I'm using ubuntu 12.04. There are 3 NIC on my PC but I wish to do ip forward only on 2 of them that act as a router. The 3rd NIC need to be separated from the other 2 and not be able to see the ...
1
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0answers
56 views

why would the system not respect a routing rule? [closed]

We have the following rule in our /etc/network/interfaces file: up route add -net 224.0.0.0/8 dev eth1 If we run route -vne we see it listed: Kernel IP routing table Destination Gateway ...
2
votes
1answer
92 views

Networking and Traffic routing question

Hello I had a few of questions related to networking, let me list them in a logical order: 1) Can multiple interfaces be bridged together so that it results in increased bandwidth? 2) Can wired and ...
0
votes
1answer
550 views

IPv6: ping6 from foreign host works, but cannot ping6 on same host

I have a strange issue with ipv6 on Ubuntu 12.04. There are two hosts, directly connected to the internet. Both have assigned a /64 network. They are properly configured with a /128 endpoint each ...
0
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1answer
2k views

Ubuntu as a Router/Gateway - Unable to access WAN

I am currently trying to set up a home router using a machine running Ubuntu 12.04. The machine has two ethernet ports. eth0 is LAN and eth1 is WAN. I have set eth0 to a static ip and have eth1 ...
0
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1answer
870 views

How do I configure ufw to only allow outgoing/established connections for a IPv6 network?

How do I configure ufw to only allow outgoing/established connections for a IPv6 network? I am using an old computer with 12.04 installed to create an IPv6 router for my local network. I would like ...
1
vote
3answers
93 views

Why are there 2 routes in this table instead of one?

route -n gives: Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.20.254 0.0.0.0 UG 0 0 0 eth0 ...
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0answers
190 views

Ubuntu Server is not routing a vtun VPN

I have an Ubuntu 12.04 LTE virtual server, kernel 2.6.32, and a VPN with vtun running. In the VPN, the server is 6.6.6.6, and the two clients are 6.6.6.29 and 6.6.6.35. If I ping 6.6.6.6 from any ...
8
votes
2answers
903 views

How to tell what interface a TCP connection will go out on?

I have a server with multiple ethernet interfaces. What's the easiest way to tell what interface an outgoing TCP connection will go out over? The results of "netstat -rn" is greek to me, so if your ...
3
votes
2answers
525 views

How to find the size of internal routing table efficiently?

I need to know how we can find the size of the kernel routing table. I have knowledge that the routing table is stored in /proc/net/route I am presently using wc to count the number of characters in ...
2
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1answer
1k views

Bridge connection: Ubuntu keeps modifying routing table

I have set up a bridge connection from my mobile phone connected via USB to my laptop running Ubuntu 12.04 to another computer connected via ethernet cable. The bridge thus connects usb0 and eth0. I ...
0
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2answers
1k views

forward port 80 for multiple IP addresses on the same Ubuntu server

I am using an Ubuntu 12.10 server as a router/NAT for an internal network to the internet. I have also configured the server to forward port 80 to a server sitting on my internal network. This all ...
1
vote
2answers
3k views

how to route 3 NICs and 3 subnets

I am trying to setup routing between 3 subnets using an Ubuntu 12.10 server with 3 NICs. I would like to be able to have all these subnets route between one another as well as be able to access the ...
0
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2answers
331 views

An offline-maps application

I'd like to have a software that allows me to download and view (OpenStreetMap-) maps of the whole world or a certain area I chose to download. Ideally, it should behave just like the map-website but ...
2
votes
0answers
348 views

iptables, forwarding between interfaces

I'm trying to setup a router using iptables. But, after a lot of examples I've tried, I can't get anything to work. My idea is to setup a box in between my Cisco and the main switch for firewall, ...
0
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1answer
315 views

How to define specific urls like 'localhost'?

The same way 'localhost' in the url points to /var/www/ I would like to put http://courses/somehting/somthing/moresomthings/.... and it would always point to /var/www/courses.php This is to work on ...
1
vote
1answer
3k views

cannot delete IPv6 default gateway

The commands below should be pretty self-explanatory. Please note that the route for which i get failure is obtained by RA and has very less expiry ( e Flag in UDAe). @vm:~$ ip -6 route ...
1
vote
1answer
117 views

Routing 2 ISPs to 2 different networks

Ok, so here is my scenario. eth0 and eth3 point to 2 different ISPs, eth1 is an internal network say on 192.1.1.0 and eth2 is on another network say 10.1.1.0. I want each network to be on their own ...
4
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1answer
2k views

Ubuntu Server 12.04 as a router. Problem with DNS?? Or Routing table?

I have a virtualbox lab made up of 4 Windows 2008 R2 servers (DC/DNS,SQL,SHAREPOINT, EXCHANGE) that are configured with static ip addresses with NIC's attached to Internal network. Everything works. ...
2
votes
1answer
672 views

My server does not forward packets between interfaces. What am I missing? [closed]

I'd like to get my Ubuntu 11.04 server to route packet between its two network interfaces. The two ethernet interfaces (eth0, eth1) work apparently well as such. Both have static IP addresses ...
6
votes
1answer
2k views

How is the loopback device implemented?

The loopback networking interface is a virtual network device implemented entirely in software. But how is this implementation actually accomplished and how do you manipulate it? As far as ...
13
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3answers
53k views

How to set static routes in 12.04 Server

I have used Ubuntu since Ubuntu 8.10; today I'm working with Ubuntu 12.04 Server. I am having difficulty keeping static routes on booting. I would usually put the route commands /sbin/route add ...
0
votes
2answers
461 views

New install 12.04 64bit dual NIC's, both DHCP, no route until one card disabled [closed]

Fresh install on Asus P7T deluxe. Which has twin NIC's onboard. Both cards have cables attached to a switch with IP's from DHCP and a valid route to the internet. Internet connectivity fails until ...
0
votes
2answers
1k views

Computer becomes unreachable on lan after some time

I work on my laptop and ssh into my desktop. I use a lot of key based authentication for many servers for work but recently I couldn't login because ssh would pick up and try all the keys and it stops ...
1
vote
1answer
124 views

How can I make sure my server is connecting through my router?

I have a Ubuntu server with PHP, Apache2 and all of that setup and working on my LAN. Meaning from any computer connected to the same router I can connect to 10.0.0.3 (My server). I have setup my ...
0
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1answer
2k views

Operation times out trying to SSH outside LAN i.e. from internet to LAN no connection is established

I run Ubuntu 12.04 and have no success connecting with SSH from "Internet". The router is a TL-MR3420 which is set up to forward requests to one of the NIC's on ubuntu machine (which has in total 3 ...
0
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1answer
505 views

Unable to ping et1 - routing issue

I have an UBUNTU server VM installation with two NICs. eth0 is on the LAN network, configured by DHCP and is working fine. I manually configured eth1 with a static IP on the DMZ network but can't ping ...
2
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0answers
787 views

How can I tell Ubuntu to keep the correct routing table?

Ubuntu sets a wrong routing table if the router is switched off and on again: Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.1.1 0.0.0.0 ...
0
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1answer
145 views

Ports misbehaving - Closed but they are opened

I have an interesting problem for you. I have a few ports that I opened up. On my router and I allowed then on my firewall too with sudo ufw allow 30999. But still the application which would use ...