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0
votes
1answer
860 views

Openvpn basic configuration for full traffic routing

My client machine is Ubuntu 11.04, my server machine is Ubuntu 10.10. I'm trying to achieve the simplest quick and dirty solution possible to get all my client machine's traffic to be redirected to ...
2
votes
4answers
2k views

Linux Ubuntu - Two NICs separate lan

I have this /etc/network/interfaces (IPs on eth1 are fake) auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 10.0.2.15 netmask 255.255.255.0 broadcast 10.0.2.255 gateway ...
2
votes
1answer
282 views

Rackspace Firewall/Gateway Setup

I have rackspace account and wish to have this sort of setup: Firewall/Gateway eth0 - Public IP (56.X.X.X) eth1 - Private IP (10.X.X.X) Ubuntu 10.10. Accepts connections from the internet and ...
0
votes
2answers
415 views

Linux add route error

Here are these Linux and IP: LinuxA: eth0 188.9.5.2, tun0 10.0.0.1 LinuxB: eth0 188.8.6.3, tun0 10.0.0.2 LinuxC: eth0 188.9.7.4 LinuxD: eth0 10.62.8.5 On LinuxA, I can ping to 10.0.0.2 of LinuxB. ...
0
votes
2answers
491 views

How can I use a gateway (or proxy) situated at the other end of a wifi layer 3 bridge?

I have a main and branch office. The branch office has a flaky internet connection and I'd like to let users in that office surf the internet using gateway (or proxy) in our main office. I have a ...
1
vote
1answer
165 views

Which cloud services allow layer 2 link level connections between servers?

There are advantages when you can deploy one server A so that it serves as the IP gateway for machines B, C, and D. In a real machine room, for example, A can balance incoming customer connections by ...
1
vote
2answers
900 views

SMS Gateway Hardware/Software

What would be the best hardware and software to set up a Linux-based SMS gateway using a Sprint texting plan?
1
vote
2answers
3k views

Configure router/gateway on Ubuntu issue: unable to reach hosts behind ISPs gateway (network map provided)

I try to configure my notebook running Ubuntu 11.04 (desktop edition) as a gateway (may be router needed? --- this is the bit of confusion for me), so that I can share Internet connection (incoming on ...
2
votes
1answer
506 views

Static routes for making hosts on different network accessible

I have a ubuntu router machine with following network settings: br0 192.168.1.15 netmask 255.255.255.0 br0:1 192.168.2.209 netmask 255.255.255.248 I have a pc attached to the br0:1 network with ...
0
votes
1answer
426 views

Squid X-Forwarded-For enabled for specific domains?

I want to set up a squid gateway, which doesn't forward the X-Forwarded-For header to most of the websites. But I want it to be forwarded to a specific domain. Here's the sample I'm trying to ...
2
votes
2answers
431 views

Multiple Gateway improve performance

I have a proxy Server and a PBX server that both have their own router as a gateway. Nevertheless, the company acquired an additional more stable ISP and now I have three Internet connections. Is ...
0
votes
1answer
108 views

use windows server as 'remote' router for specific websites

We use a software on our windows 2008 server that regularly needs to connect to a licensing server. For budget reasons, we don't have a public fixed IP address. The problem is that the licensing ...
1
vote
3answers
305 views

ISP like Linux WAN router/gateway

My ISP has installed a fiber link at the place where I work. It has provided an ethernet WAN link to my office and has given a set of static ip's on 187.xxx.xxx.224/29 network. I need to setup a linux ...
7
votes
6answers
8k views

What's the difference between a gateway and a router?

Here we can see the router is 67.23.27.187(first hop), but the gateway is 67.23.27.1. What's the difference between a gateway and a router? How does my computer know the IP of the router when only the ...
2
votes
3answers
457 views

How do I set up a gateway through linux?

I want to create a linux gateway proxy for my wireless router. I have a modem connected to a non-wireless router connected to a wireless router set up as an access point. I want to put the linux ...
0
votes
3answers
474 views

Ubuntu: block access sites through internet gateway

We have a local server which manages our internet connection. This server functions as a gateway, and that way we share the internet throughout the office (instead of using a router). However, I'd ...
0
votes
1answer
1k views

Trixbox CentOS Default GW Problem (Multi-homed server)

I'm having an issue with a CentOS trixbox server which is dual-homed (one private facing NIC [eth1], one internet-facing NIC [eth0]). I can't seem to get the default gateway to set properly to our ...
1
vote
1answer
2k views

Linux Gateway: One network card how to masquerade from one subnet to another

Good morning one and all. In our network we have a single Linux machine that has aliased IP addresses. Each of these IP addresses sit on a network controlled by a remote router to an ISP. We want ...
1
vote
2answers
114 views

Mailserver vs. Mailgateway

What is the difference between a MailServer and a MailGateway?
0
votes
2answers
347 views

Centralized MAC filter for wireless lan

I am attempting to install a MAC filter in between a switch that handles my wireless network and the core of the network. The idea is to have a centralized MAC filter bypassing the filters built into ...
0
votes
2answers
961 views

Routing traffic through a specific port depending on Subnet requested

I have my network setup with a sonicwall device as the default gateway so all my traffic goes in and out through it. Now I have just setup a VPN on a cisco router from our local network of 192.168.5.X ...
0
votes
1answer
2k views

Enabling NAT forwarding using a second WAN interface and a second gateway on ubuntu

I have 3 interfaces: eth0 192.168.0.50/24 eth1 10.0.0.200/24 eth2 225.228.123.211 The default gateway is 192.168.0.1 which I want to keep as it is in the changes I want to make. I want to ...
0
votes
3answers
6k views

Error 504 Gateway timeout

I would like to know if an error 504 Gateway timeout always come from the load balancer or it can also be originated from Apache and the PHP code it's running ? Thanks
2
votes
3answers
3k views

Force Windows Local Subnet Traffic through a Gateway

We are attempting to route all traffic from a certain machine to a gateway. This works ok for traffic destined for subnets outside of the machine's subnet. However, traffic to machines in the same ...
1
vote
2answers
172 views

Is it possible to use 2 lines from 2 diffrerent ISP?

How can I (if it is possible) to set up the network gateway if I have 2 internet lines from 2 different ISPs? Furthermore, one of them is forwarding /28 static ip for (into) our network. Is there a ...
3
votes
4answers
584 views

Stress test speed on a gateway?

I'm interested in stress testing my gateway server but am lost on how. Most of the stress testing applications I've seen only see how much load an app like Apache can handle, but not this. ...
0
votes
1answer
333 views

Incorrect default gateway listed across entire domain

Our DC is a Win2k3 box that also does DHCP for the domain. I was having some network issues the other day that turned out to be DNS related and resolved those. Anyway, when I was running diagnostics I ...
0
votes
1answer
548 views

Multiple IP's using one NIC connectivity problem - Windows

I have a frame relay network that is directly connected to a GPRS network. I also have a ADSL high speed network and recently I have been trying to achieve the following network configuration using ...
0
votes
1answer
57 views

Blocking Clients while Forwarding All Traffic

Greetings, How to block clients by masking their subnet mask or changing their gateway information while forwarding any outward traffic from such clients to a specific proxy or server to display some ...
2
votes
3answers
926 views

How much does a IPtables router slow down a connection?

I would like to know if introducing a new gateway in my network will slow things down. The question may sound unclear but here is an illustration: Before Installing gateway server Main Router ...
2
votes
1answer
139 views

Different Servers for incoming mails

not sure if what I want is possible so I´d appreciate any pointers. I have full control over the infrastructure (DNS and servers) Currently I receive mails for domain.tld. MX record for domain.tld ...
0
votes
1answer
401 views

Cisco NAT vs Bridge vs BVI

The only devices on this particular LAN will all have public IP addresses. Also the public IP address will be configured directly on the machine,,, so we will not translate private/public IP ...
0
votes
2answers
1k views

Multi Gateway and Backup Routing on a cisco router

I have a 2620 Cisco Router with only one Fastethernet port Now I have two internet gateways. I want to config my router as when primary routing fails second routing automatically start to route all my ...
0
votes
1answer
594 views

Siemens se5940, Factory Reset? Reconfig?

I have inherited a Siemens se5940 T1 gateway that I would like to reset and put into use. I have been looking around for a manual but I'm not having much luck. Is anyone aware of a manual that can be ...
1
vote
1answer
730 views

Poor iptables network forwarding performance

This is my firewall script: WAN_NIC="ppp0" LAN_NIC="eth1" DYN_ADDR="yes" iptables -P INPUT DROP iptables -P OUTPUT ACCEPT iptables -P FORWARD DROP iptables -t nat -P PREROUTING ACCEPT iptables -t ...
1
vote
3answers
1k views

How to setup Mac server to use two gateways

I recently asked this question: How to set Mac server to use different Gateway for internet bound traffic The answer given works but has presented me with another issue that I didnt make clear in ...
1
vote
2answers
103 views

VPN doesn't have access to drives unless I use the default gateway

I am trying to setup a VPN connection on one of our office servers so that many of our employees can access our drives when out of town or for important business meetings. However I have a weird ...
1
vote
1answer
118 views

Linux gateway issue

I have a virtual machine running on a public ip (eth0) and an internal IP (eth1/192.168.22.50). From my place (192.168.110.x), I VPN to that network. The problem is that I am unable to access any ...
2
votes
3answers
2k views

What is a common corporate internet gateway / proxy / filtering setup?

What are some "typical" internet gateway setups for corporate firms of say 500-5000 users? e.g. Firewall - some hardware device? Web Proxy - squid or other proxy software / device? Content ...
0
votes
2answers
397 views

How to make Intranet accessible from WAN

We have an intranet webserver https://intranet.example.com that should be accessible from outside (only for our own people) under the same domain name. This is necessary, so all the links and urls ...
0
votes
6answers
3k views

How can i monitor internet traffic in my LAN?

I have a centOS box set up as a gateway with IPTables (among many things such as proxy cache using Squid). My LAN consists of ~30 machines, all connect to the internet through the gateway's eth0 ...
1
vote
2answers
2k views

What is a SIP 'Gateway' and how is different from a SIP Proxy/Registrar?

Recently I started looking at SIP implementation for a future work. I was reading (Googling) about what SIP means and how to go about implementing a end-to-end SIP enabled VoIP network. What I did not ...
0
votes
1answer
457 views

OpenVPN with two gateway and DNS server

i've got a network as describe in this schema and I would like to setup an openvpn to access it from outside. http://i.stack.imgur.com/2Oqod.png The name of my VPN server is relay. Here is my openvpn ...
0
votes
3answers
904 views

Static Routing with Subnet Mask 255.255.255.255 and Blank Gateway?

What static route configuration (as shown by command line "route PRINT"): Network Destination Netmask Gateway Interface Metric could be used to reach a specified static route (web proxy) in the ...
0
votes
4answers
2k views

Multiple default gateways on the same interface

Is it valid to have multiple default gateways associated with the same interface. I thought that didn't make sense, but I'm seeing this on my laptop $ route Kernel IP routing table ...
0
votes
1answer
248 views

how to configure asynchronous ppp connection on a lan

how can i configure asynchronous ppp connection on a lan so that ppp connection to ISP is made (the Internet) only when there is a request from a local net to and disconnect if there is no activity ...
0
votes
2answers
1k views

Vyatta masquerade out bridge interface

We have set up a Vyatta Core 6.1 gateway on our network with three interfaces: eth0 - 1.1.1.1 - public gateway/router IP (to public upstream router) eth1 - 2.2.2.1/24 - public subnet (connected to a ...
1
vote
4answers
2k views

Getting Network Card Interface information via SNMP

(Moving this from SuperUser, I realized it's more appropriate here) Hey all, I need to figure out how to reliably get various pieces of information for network interfaces via SNMP, such as the ...
0
votes
2answers
1k views

nagios - sms notification via kannel

How can I configure this SMS notification via kannel? Can anyone explain in or drop a link related with my problem.
2
votes
3answers
6k views

Does Default Gateway IP = Router IP?

Basically I am trying to automate logging into the routers setup config page, and if I can get the default gateway ip I want to be sure that I will be able to use that ip to login to the routers ...