Questions about using a router/networking, e.g. port forwarding, VPNs

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5
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170 views

Internet Sharing on Lion breaks my routing table

When in the office, I'm connected to a 192.168.1.0/24 network. When Internet Sharing is off, when I run netstat -nr the first entry shows default 192.168.1.254 UGSc 10 ...
3
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0answers
843 views

Windows 8.1 Hyper-V guests cannot access Internet

I've set up several Linux VMs using Windows 8.1 Pro's Hyper-V feature. This was working fine yesterday. Shortly after installing a new VM, I noticed that it could not access the Internet. This was ...
3
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0answers
1k views

Mac OS X Routing Table Protection

I'm looking for a way to protect my Mac OS 10.8 routing table. After connecting to my employer's network using the Cisco AnyConnect Secure Mobility Client, a bunch of new routes are installed into my ...
2
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0answers
37 views

OpenVPN client can't reach a box on server's LAN

I can't seem to figure this out. The server runs on a VPS with private networking. I need to reach another VPS on the same datacenter from the client via the OpenVPN server. The server's LAN IP is ...
2
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0answers
32 views

IP forwarding on windows 7

I want to redirect incoming traffic with a specific IP destination address coming to my computer to proxy server working on this PC (C# app). I tried to accomplish it by using netsh interface ...
2
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0answers
228 views

Share VPN connection and normal internet with mobile device over WIFI

I have a PC and Mac that I have running on a VPN for work. The VPN is only required for traffic to a sepecific set of servers (not all my internet traffic is routed over the VPN). The vpn is made (on ...
2
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0answers
289 views

Route traffic from one VPN to a second VPN

I have set up an OpenVPN server on my windows 7 64-bit PC. I also have a subscription to a VPN service. My aim is to be able to connect my android phone to the VPN server on my PC, and then route ...
2
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0answers
842 views

How to open a server port outside of an OpenVPN tunnel with a pf firewall on OSX (BSD)

I have a Mac mini that I use as a media server running XBMC and serves media from my NAS to my stereo and TV (which has been color calibrated with a Spyder3Express, happy). The Mac runs OSX 10.8.2 and ...
2
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0answers
318 views

Multiple SSH Connections over different connections

I have a Linux box with a couple of 3G/HSDPA modems, seen as network connections, and i would like to get each to connect to a server over SSH. The server could be the same server, and i would need ...
2
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0answers
88 views

Routes with question marks in routing table

When I do ip route show table all I see some routes with question marks in them as below. multicast ???/32 from ???/32 table default proto none iif eth0 They appear to be multicast routes. I ...
2
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0answers
1k views

None of the clients of LogMeIn Hamachi mesh-network are reachable

For some reason my Hamachi network stopped working. Here is what I have Version of the Hamachi client is 2.1.0.122 It's "Mesh" network. I have 7 clients, 3 of them are online right now. All clients ...
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0answers
238 views

Routing packets to different available networks using process' pid / uid

I need to route packets from some processes(unique pids/uids) to desired network connection. So, Suppose we have 4 processes with pids 10, 11, 12, 13 respectively; and we have two network connections ...
2
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0answers
651 views

How do you add a MAC-based routing whitelist with DD-WRT and the OpenVPN client?

I have an OpenVPN client set up on my DD-WRT home router which maintains a VPN into my workplace. Slight problem: I don't want random lusers who access my wireless AP to have access to my company's ...
2
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0answers
150 views

selective connection usage

I use a proxy, at work, which I consume in Ubuntu (Karmic) with the great cntlm (it requires NTLM support, it's an ISA proxy). However, this connection is also "Websensified". I have an open wireless ...
1
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0answers
19 views

On a dual-homed Linux machine, why do packets route correctly without a link scope entry in one table, whereas the other table requires it?

I have a Linux (3.2.0-35) box with two network interfaces, bond0 on 192.168.20.0/24 and bond1 on 10.1.3.0/24. Here are what I believe to be the relevant routing tables and rules: $ ip rule 0: from ...
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23 views

Best way to setup a high performance LAN with a tethered laptop for internet?

This question should be fairly easy for all you network guys out there. So, here is the rundown of what I have access to: -Linksys EA6500 high performance router w/ 4 Ethernet ports + 1 for internet. ...
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556 views

pfSense to route between multiple subnets on same LAN

I started with a fairly standard pfSense setup: one WAN and one LAN interface, LAN-to-WAN access via NAT. Now I needed a second logical subnet on the LAN, which I set up in the following way: ...
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49 views

Skip routing via lo interface for outgoing packets

Introduction: I have following load balancing configuration: 10.0.1.31 - lb 10.0.1.32 - node1 (tomcat + mysql) 10.0.1.33 - node2 (tomcat + mysql) I'm using keepalived which is redirecting packets to ...
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140 views

Is it possible to route all traffic on VirtualBox host adapters to guest?

I am upgrading Ubuntu 8.04 on a dedicated router/firewall/NAT/SMTP/SSH server with a current Linux (Debian Wheezy). I am using VirtualBox (4.2) with Ubuntu 8.04 as host and the new Debian build as ...
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0answers
57 views

How to stream WiFi cameras over a Linux gateway to my laptop using iptables?

My setup is as follows: Linux gateway has one WLAN configured as WiFi client (192.168.0.100) to a Linksys WiFi AP(192.168.0.1). There are three WiFi cameras connected as WiFi clients (192.168.0.101, ...
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56 views

Linux routing table entry disappears

I run Fedora 20 (Linux 3.13.3-201.fc20.i686) inside VirtualBox on a Windows 7 SP1 host. The Ethernet adapter on the guest is configured as a Bridged Adapter in VBox, and gets an IP via DHCP. Here's ...
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64 views

multiple ipv4 addresses with internet connection on single physical device

my isp gives me up to two ipv4 addresses. i have a raspberry pi with archlinux connected to the modem. first interface is eth0 and the ip address is obtained via dhcp. i created a virtual device with ...
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329 views

Tunneling traffic through OpenVPN

Following the steps described here I've managed to configure both the VPN server and client(I can ping both ways). Their respective configuration files are: server: ;local a.b.c.d port 1194 ;proto ...
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0answers
56 views

BindIPEndPointDelegate to select VPN interface on Windows

I have multiple Windows-intergated L2TP VPN connections on my server. By default, all internet traffic should be routed through my local network adapter and not through the VPN. My application should ...
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0answers
67 views

ARP for a multihomed machine (Linux)

I try to configure two interfaces on my server to behave as independently as possible on the same medium. However I have some problems with ARP (maybe related to ARP flux). I hope somebody can ...
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0answers
34 views

Query an office gateway/router to confirm all routes?

Is it possible to send a 'query' of some sort to a gateway device in an office to see what subnets I have access to? For example, I know that I have access to multiple subnets because we have many ...
1
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0answers
903 views

Cisco AnyConnect vpn stops internet connection in Windows 8

I have a VPN set up through Cisco AnyConnect 3.1.04072 on a Windows 8 laptop. I can connect to the vpn, but as soon as I do, all internet traffic stops. I've been researching for days now and I ...
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0answers
100 views

Host not resolving, ping is

I have two network cards on my Mac OS X. One for my corporate, the other one is my wlan. For all internal stuff, the corporate one should be used. I configured following: route add -net 10.0.0.0/8 ...
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0answers
112 views

ESXi connect to external management network from internal VM

My ESXi server has two vSwitches: One has a physical NIC attached which I labelled "external". The other has no NICs attached which I labelled "internal". My external network is in the subnet ...
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0answers
726 views

How to troubleshoot routes while trying to forward all traffic through VPN

I've recently set up a LogMeIn Hamachi VPN in Gateway mode. My goal is to forward all internet traffic from my local machine through the VPN. I've been searching for a while now and have only found ...
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0answers
68 views

Can I force putty to use some networking interface?

The problem is that I've two networking interfaces one of them does not allow any outbound ssh connection. How can I force putty to use the second network interface so I can connect to a remote host? ...
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0answers
171 views

Understanding Linux routes in Proxmox

I have a server and decided to go ahead and practise with Proxmox. This is the network setup I have right now: Two interfaces: eth0 & eth1 (different NICs, both connected to internet) Two ...
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0answers
121 views

NAT routing command in windows

Is there any specific command in windows which do the following task: I want to modify the source IP address in the packet whose Destination IP is not in the private LAN, i.e., I have a virtual ...
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0answers
31 views

Route certain programs to different gateways

I own a small network with 15 windows computers, 1 linux server with samba for network storage and 3 aDSL lines of 8Mb/s each. I have set 5 computers in each adsl line. What I want to do, is having ...
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0answers
308 views

local routing with openvpn : ping: sendmsg: Operation not permitted

I set up a simple vpn with IP 10.0.0.1 using openvpn --mktun --dev tun1 ip link set tun1 up ip addr add 10.0.0.2/24 dev tun1 and I run a simpletun program on two machines which is ...
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0answers
160 views

setting up linux routing table for mutliple wifi connections

I would like to increase the speed when downloading large files on a public hotspot by using both a built-in wifi-adapter (wlan0) and a wifi-usb-stick (wlan1). As bonding wifi-devices does not seem ...
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0answers
754 views

How to route traffic from another network to the internet

I am doing a bit of experimentation with my home network and have the following setup: +---------+ +----------+ +-----------+ +----------+ | Host A |_WiFi_| Router A =1)___(2= ...
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0answers
109 views

Comcast gateway parental setting block CIDR IP Range

I'm not sure if this is the right place to ask this, but I am having trouble adding CIDR IP ranges e.g. 206.111.0.0/16 to my Comcast Gateway. I went to Manage Sites and it says: Please Input a valid ...
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0answers
296 views

iproute nexthop not working - defining multiple default gateways

I have several point to point connections and I'd like to use all of them as default gateways. I saw this link which explains how to do this using load balancing by calling ip route with a nexthop ...
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0answers
257 views

websocket behind a firewall

I have a computer with a strong CPU and a lot of memory (strongy) running Windows Server 2008 R2, that is blocked by a firewall from any access from the outside world. I have a computer with a weak ...
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0answers
713 views

Allow access to internet with DD-WRT OpenVPN in bridging mode

I am having issues with my OpenVPN configuration on DD-WRT. All traffic has to be routed through the tunnel. The DD-WRT device is not directly exposed to the internet, so the firewall is disabled. ...
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0answers
61 views

Resetting route via cmd

I have recently encountered problems on Windows 8 with my VPN connection messing us my route settings, and I'm wondering if it is possile to reset the setting to a working state by using route, namely ...
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0answers
316 views

PPTP VPN connection disconnecting when accesing an IP over VPN

I have two PC lan behind a router. I am connecting to my company network through a VPN. I was not able to reach an IP, nor access the internet. The VPN connection would be disconnected automatically. ...
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0answers
1k views

Route summarization: How to get the route summary patently. (VLSM, CIDR)

i'm looking for a smart and short way to calculate summary routes. (CIDR, route summarization) I'm common with the subject matter of summarization, supernets, VLSM, CIDR etc. but I don't always ...
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0answers
50 views

How does a Benes network work?

How does a Benes network work? If I have a Benes network with 8 nodes on each side, like this one here: . . . how do I know whether or not I take the upper or lower port of a switch in each stage? ...
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86 views

how to Specify which physical interface the VPN interface should use, Windows7

I have two physical interfaces which both have internet connection different from each other, and I have VPN virtual interface. I want to specify for the vpn which physical interface it uses .. how is ...
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0answers
225 views

Route problems with OpenVPN through a local Astaro firewall

I am trying to connect to a OpenVPN server on my Windows 7 desktop though my Astaro (ASG) Firewall. I got it setup and can connect just fine but I can't surf the web. I can ping websites like ...
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43 views

Route everything from some VLANs to a tunnel

I've set up a tunnel: $ ip tunnel add mytunnel mode gre remote x.x.x.x local y.y.y.y ttl 255 $ ip link set mytunnel up $ ip address add 172.17.10.2/30 dev mytunnel $ ifconfig mytunnel up Now, I can ...
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0answers
104 views

How do I route in to a dynamic network (pptp client)?

I have a Centos 6 server. It is acting as a pptp server. My home router is dialing a pptp connection to the server as a client, and gets an IP. Communication between them is fine, but I want the ...
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0answers
426 views

Routing table on Linux not respected

I have a very specific problem, building a Linux VPN endpoint (with external VPN Gateway), which should route certain networks over the tunnel, others via default gateway. The Linux VPN should do a ...