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5
votes
1answer
2k views

connect Open vSwitch switch to real network : iptables masquerade

I'm using Open vSwitch to create a switched network between virtualBox guest machines, and i want that the host OS (Ubuntu 12.04) join this network and to configure it as the gateway of this virtual ...
0
votes
1answer
22 views

route output traffic from specific NAT'ed VM via ip alias

In a dedicated server with several containers behind NAT, I'm trying to route the output / outbound traffic from one of the containers through a specific virtual interface attached to the main ...
0
votes
1answer
25 views

Master and slave devices talking to each other through another device with two interfaces. All in the same network

I have three devices, one is a master which will talk with the slave and Device3 but it is only physically connected to the Device3. The slave will speak only with the master(also through the ...
0
votes
1answer
59 views

forwarding packet from one interface to another interface

I have an embeded system with 2 interfaces e0 and m0, whose ips are 10.0.0.20 and 192.168.0.20, respectively. Incoming packets into e0 have an ip of 10.0.0.10 and should be forwarded to m0 interface ...
0
votes
1answer
93 views

Forwarding IP address using pf

I'm trying to forward an external IP address to another external IP address with pf. The equivalent iptables command would be iptables -t nat -A OUTPUT -d [ipaddress1] -j DNAT --to-destination ...
0
votes
1answer
57 views

SSHD to retrieve forwarded client IP

This is my use case: I have a bunch of hosts behind load-balancers and clients SSH through the load-balancer. The LB internally creates a new connection so the connection with the end-host has the ...
0
votes
1answer
251 views

forward snmptraps with snmptrapd to second host

I have a setup with snmptrapd listening on udp:162 to receive snmp traps. They are then processed on this host with snmptt. I am now in the need that I need to forward those traps additionally to ...
0
votes
1answer
221 views

IP Forwarding and Routing in Windows 2008

I have Hyper-V running on a windows 2008. I got a new ip stack from the data center to be set on my virtual machines. But I have difficulties to set these IPs on my VMs because they are on different ...
2
votes
0answers
600 views

OSX Yosemite IP Forwarding not working

I coudn't manage to set up basic ip forwarding on OSX Yosemite 10.10.1 Mac-Mini. I use the exact same configuration on a OSX Mavericks 10.9.5 Mac-Mini, and it's working perfectly ? I set the sudo ...
1
vote
0answers
37 views

Double IP forwarding not working

I have the following 2 debian servers in my scenario: The first one is my main openvpn server, it has 2 NICS active eth0 (172.25.156.146) and eth3 (172.26.16.1) - The second server has also 2 NICS ...
1
vote
0answers
93 views

Openstack instances, routing, packets not delivered for SPECIFIC services

I am taking over management of an existing openstack system at work and I have only a little prior experience with openstack. I have about 8 instances running and all of them appear to function ...
0
votes
0answers
36 views

Redirect traffic through a computer to another connected to the same switch

I am trying to setup a single sender, single bottleneck and single receiver network. Network Image The router in the image is a computer that has ip_forwarding enabled. PC1 has the default gateway ...
0
votes
0answers
136 views

Iptables - centos 5.8 - how to forward ports to internal lan

I'm trying to map port 8080 to another machine running a web server. ppp0 = ADSL internet connection eth0 = ethernet card of linux machine (ip address: 192.168.0.2) 192.168.0.105 = other machine ...
0
votes
0answers
94 views

Ubuntu as IPSec L2TP client with NAT traversal

Goog afternoon, I have a corporate local network located behind NAT. There is another NAT in this local network for the corprorate server on Ubunit 12.04. So if clients connect to that server ...
0
votes
0answers
481 views

OpenVPN on Ubuntu: IP Forwarding not working

I have successfully set up a VPN connection between a Windows 8 client and my Ubuntu server running OpenVPN. However, I just cannot get IP forwarding to work. I have adjusted all settings as desribed ...