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0answers
54 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
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0answers
24 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 ...
0
votes
0answers
38 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
1answer
80 views

openvpn windows routes ip forwarding enabled but not working

I have setup an openvpn network, I have in my client windows two interfaces, one public with IP 1.2.3.4 and the openvpn interface, with ip 192.168.244.10 I am able to ping from windows to the ...
0
votes
0answers
58 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 ...
1
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1answer
583 views

Getting the client IP when passing through a reverse proxy

In my VPS I am hosting several websites. everyone living in its own Linux Container. For instance Site #1 -> 10.0.3.111 Site #2 -> 10.0.3.112 Site #3 -> 10.0.3.113 To know where to ...
3
votes
2answers
4k views

How do I forward/NAT all traffic to one interface/IP to a remote IP?

I have one "server A" that has multiple IPs attached to it, like so: eth0:0 1.1.1.1 eth0:1 1.1.1.2 eth0:2 1.1.1.3 I have another "server B" that also has multiple IPs attached to it, like so: ...
0
votes
1answer
167 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
51 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 ...
1
vote
0answers
74 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 ...
4
votes
1answer
509 views

Bind outgoing SOCKS-server traffic to a specific IP

At the office we get access to the web via a SOCKS server which is started with the command: ssh localhost -f -N -D *:8888. This server has 2 IPs (but only one network card): eth0 xx.yy.zz.1 eth0:1 ...
3
votes
3answers
2k views

Redirect IP Address to Domain Name

I am attempting to redirect the IP address of my domain to the domain name and am running into trouble. The IP address does not redirect to the domain name listed in the redirect statement below. ...
0
votes
0answers
345 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 ...
0
votes
1answer
125 views

IP routing Solaris 9 access the internet from local network

I am trying to configure the NICS on the Solaris Sparc server. My problem lies in getting out to the "Internet" from the local network. I have requested the NIC to receive a DHCP server address ...
-1
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2answers
48 views

Is it possible to point multiple domains to multiple static IP's on a single system? [closed]

I'm currently running the latest version of Ubuntu Server. I currently am pointing my subdomain to my static IP address. I have 5 static IP's and I'm wondering how I could use all static IP's at once ...
0
votes
2answers
137 views

do i need IPTABLES to enable IP FORWARDING?

To simplify, let's say I got a network with 3 servers (all runnning centos 6.4) in a row: Internet---FW---LN---PN FW: firewall LN: login node PN: processing node i can ping from the FW to the ...
-1
votes
2answers
341 views

Use Domain in iptables PREROUTING

I have a www.example.com with X.X.Y.Y ip i want to forward traffic from port 80 to the domain(www.example.com), I used the following iptable: iptables -t nat -A PREROUTING -p tcp --dport 80 -j DNAT ...
0
votes
4answers
290 views

ssh to local network behind a public IP (TCP forwarding)

I want to connect (using ssh) two remote computers in a local network using a unique public IP X.X.X.X. | HOST_A---------| 172.1.1.2 | _____________ ...
0
votes
1answer
3k views

Linux bridge (brctl) dosnt forward IP packet when router is one of the bridge endpoints

I have setup a brctl bridge on Ubuntu with the following deployment: Cisco router -> Linux bridge -> client computer The bridge forward the following packets types: ARP,STP, but doesn't ...
0
votes
1answer
33 views

routing behaviour (PAT/NAT)

|(eth0: 84.23.13.43) +--------------+ | | | NAT router | ...
0
votes
1answer
267 views

It is okay to set MASQUERADE at 2 network interfaces in a Linux server?

There is a Linux server with 3 network interfaces, eth0, eth1, eth2. IP forwarding has been turn on in this server. eth0 is connected to 10.0.1.0/24. Its IP is 10.0.1.1. eth1 is connected to ...
2
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2answers
2k views

Does IP forwarding on Linux act as a reverse proxy?

I have looked around and have seen many IP forwarding solutions that forward requests from an IP on one server to another IP on another server. (Basically, the forwarding of requests going to ...
-1
votes
1answer
182 views

Linux server not routing my packets

I have a linux server (Ubuntu 12) with 2 NIC's. eth0 is connected WAN (inet 10.0.2.15 mask 255.255.255.0) eth1 is connected LAN (inet 192.168.0.1 mask 255.255.255.0) I want my windows machine to ...
0
votes
2answers
688 views

how to route external IP to internal without MASQUERADE

Ok, i'm still working on creating a dmz'd http server So now I have an ethernet tunnel using ssh -w 0:0 and I have interfaces on each end which can talk to each other: previous question So now ...
0
votes
1answer
76 views

IPTABLES Forwarding issue

Ok, so I am terrible with iptables so I need some help. Here is what I am trying to do. I have a lan box on vlan 4 (172.16.9.65) I have another box on vlan 9 (10.1.0.1) My gateway for my 172.16.9.65 ...
4
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0answers
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
209 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 ...
1
vote
1answer
469 views

centos 6.3 kvm external ip forwarding to guests

I have a centos 6.3 server with kvm installed. The server has 4 external ips and one NIC. 176.9.xxx.xx1 176.9.xxx.xx2 176.9.xxx.xx3 176.9.xxx.xx4 I use the following configuration ifcfg-eth0 as ...
0
votes
1answer
976 views

Ubuntu IP Forwarding to virtual ethernet adapter

I've setup Ubuntu server along with ufw as a firewall. To start, I have two networks: Public: 66.xxx.xxx.70 - 66.xxx.xxx.78 Private: 192.168.3.1 - 192.168.3.255 My network config: auto eth0 iface ...
0
votes
2answers
692 views

Proxmox - Live migration between different subnets

I have a proxmox cluster, that is distributed over two different subnets having two different gateways. In the first subnet VMs get an publicly available static IP address by MAC address mapping. ...
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1answer
97 views

Apache Mysql PHP5 ubuntu home server configuration? [closed]

Here is my problem i have been searching for days now and i didn't found something i can apply directly. i have apache and Mysql and php and i am using ubuntu. I have a static IP, but i am not in ...
0
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1answer
164 views

Host forwarding fails, server is up, domain name tests ambiguous

I have a domain name registered with http://www.registryrocket.com/ The "main" site, which is called rudolfcode.net, is registered under godaddy, and forwards to a heroku site ...
1
vote
1answer
1k views

What is the ip-forwarding option in dhcpd.conf?

From O'Reilly's book "TCP/IP Network Administration": option ip-forwarding 0 | 1; Specifies if the client should do IP forwarding. 0 disables IP forwarding, and 1 enables it. The only IP ...
5
votes
2answers
7k views

Pings from VPN network to VPN client work; pings into from VPN client to VPN network fail - why?

We are in the process of setting up an OpenVPN server for some servers running in a cloud. We are stumped with a connectivity problem whereby the hosts on the VPN server's LAN can ping te VPN client, ...
2
votes
2answers
370 views

Forwarding web traffic from one IP to another

We host a web site for a client that is not responding to our requests to change their "A" record for the site (they own the domain). We are migrating soon and we cannot wait for them, nor do we want ...
1
vote
1answer
1k views

net.ipv6.conf.all.forwarding = 1 is an unknown key

I have few system with ipv6 addresses. I want to forward request from one system to another. hence I kept the option net.ipv6.conf.all.forwarding = 1 in sysctl.conf but the request is not getting ...
0
votes
1answer
1k views

Setup a local bridged connection using VirtualBox

I'm trying to forward/masquarade some trafic from my guest CentOS6 (virtualbox with bridged connection). Host is OSX Lion. Here is my network layout: en1 - host iface address: 78.251.xx.yy ...
0
votes
1answer
304 views

Server with 3 public IP and iptables

I have a linux box with two NIC cards: eth0 and eth1. In one card i have 3 public IP: eth0 = 10.10.10.1 eth0:1= 10.10.10.2 eth0:2= 10.10.10.3 In the other card I have one local IP eth1 = ...
0
votes
1answer
248 views

pptpd server does not route internet traffic?

I have set up a pptpd server on my computer and clients can connect to it successfully. I have enabled ip_forwarding in /etc/sysctl.conf and added the following rule to my iptables to masquerade the ...
1
vote
2answers
472 views

Linux: Ip forwarding or bridge?

On a Ubuntu 8.04 I have two interfaces eth3 and eth4:avahi. eth3 is in my local network with 192.168.178.63. eth4:avahi has the ip 85.214.144.211. From this box I can ping 85.214.144.212 ...
2
votes
3answers
150 views

Firewall based equivalent to SSH tunnelling

I have a web server that connects to a 3rd party database server and is granted permission to do so via a firewall rule on the database server. When I'm developing locally on my laptop, I use an SSH ...
0
votes
1answer
377 views

Activate ipforwarding on Windows Server 2k8 only for specific network adapter?

Is it somehow possible to activate ip forwarding only for one specific network adapter? Do I need to activate it for all of them and then somehow controll it with firewall rules or is there another ...
0
votes
2answers
2k views

Varnish configuration, NamevirtualHosts, and IP Forwarding

I currently have a bunch of NameVirtualHost based websites, load balanced between 3 apache2 servers using ldirectord. I would like to insert varnish as a reverse-web-proxy between ldirectord and ...
4
votes
2answers
6k views

How do I enable IP-forwarding in MacOS X?

What is the correct way to enable IP-forwarding in MacOS X? More specifically, what is the MacOS X command line quivalent of the following two Linux commands: echo 1 > ...
1
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2answers
2k views

Problem IP Forwarding is Dropping Rx Packets on Embedded Linux Network

I have a pc and two embedded linux based systems that I am trying to chain together through IP forwarding. They span two separate local networks. Both networks are wired. I can ping 10.10.10.6 from ...