the process by which data packets on communication networks are forwarded into the direction of their ultimate destination by routers.

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356 views

Routing multiple IPs from different subnets (ISPs) with Linux

I had/have an interesting problem today regarding routing with linux. My expectation: to be able to assign multiple public ips to an interface and have one default gateway. packets sent to a ...
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1answer
998 views

PFSense router introducing loss into network on LAN interface

experiencing some weird issues when trying to setup a new set of routers. We have single wan coming into two pfsense boxes, with CARP between them on its own interface, and shared Public IP along ...
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2answers
287 views

Connect one computer with a single network interface to two networks

This is my situation: Network A: 172.16.0.x Network B: 192.168.0.x Server X: needs to access (and be reachable from) both networks. Members of Network A should not be able to see members of ...
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2answers
64 views

Can we route video on my redundant link while the primary is up and turn it off if the primary fails over to secondary?

We have a remote location that is currently routing data over a satellite connection. I am adding a cellular fail over if the satellite goes down. I have been asked to install video cameras that ...
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2answers
219 views

Routing to a Public IP (for VM WAN migration)

I'm planning to migrate a virtual machine from one data-center to another. The VM has a public IP address that will change on the new data-center to another public IP address. I'm planning to change ...
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1answer
66 views

Custom mail routing rule in Exchange 2003

Given the scenario: Microsoft Exchange Server 2003. On the server, there is a recipient's mailbox, let's call it mj@myserver.com Suppose I want all mail, that are received from ...
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1answer
394 views

Does ESXi 5 have a “routed IP” feature like Xen?

I have a dedicated server that I would like to use ESXi 5 on. I previously had Xen and it worked great. Initial network configuration was a bit confusing. The problem I have is the hosting company ...
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2answers
431 views

Forwarding a call from different subdomains to different internal machines

How do I route traffic from different sub domains to different internal IP addresses? I have set up a Debian router that has one public IP and a domain name pointed to that IP, I would like to have ...
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1answer
683 views

Routing between two subnets on Windows Server 2008

I have a Windows Server 2008 box. One interface is on a VPN (5.140.164.156/8) and one is on the local netowrk (192.168.1.253/24) I have enabled RRAS and on a different machine on my LAN I have added a ...
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1answer
76 views

Sporadic routing(?) issues

We are running several virtual machines using KVM with libvirtd with a routed network (the host systems routes an extra subnet for the virtual machines). Host and Guest OS is Gentoo (host on amd64, ...
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3answers
479 views

Linux routing with gateway in different VLAN

On a hosted environment where we do not have control over the routers all we have is a internal network and a DMZ network and a host in each. In the DMZ is a RHEL server running Openswan and ...
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1answer
976 views

Routing squid traffic via same interface over different gateway (= DSL modem)

MI have two interfaces on an ipcop machine, eth1 (public) and eth0 (local LAN). Transparent SQUID is listening and caching on eth0, and all traffic is routed from there across eth1 for public web ...
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3answers
800 views

Simple OpenVPN setup on Windows Server 2003 SBS with RRAS

I am trying to set up the most basic VPN configuration with OpenVPN. The server is Windows Server 2003 SBS. A typical client system is Windows 7 Professional. The server has two physical NICs (WAN ...
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1answer
5k views

How to set up routing for RRAS VPN connections

I have a NAT/firewall running DHCP for the LAN configured to forward the VPN ports directly to the Windows 2008R2 server behind the firewall on NIC1. The LAN switch is also connected to the firewall ...
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1answer
845 views

Forward specific web requests from Apache server to IIS 7?

I have two servers: an Ubuntu/Apache web server and a Windows 2008 IIS7 server. I have one external static IP address. All web requests on port 80 are forwarded to my Ubuntu machine. The majority ...
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2answers
247 views

Routing problems IPv6 client/server where server has both native and tunnelled address

I have been trying to get IPv6 working on my tap OpenVPN network. The server already has IPv6, however it only has a /64 and the biggest range available is a /116 (which breaks autoconf). I am getting ...
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3answers
373 views

Create Public DNS that maps to private IP space

I'm trying to create a setup where I have one public facing IP address that feeds to several different internal servers where each server has a unique IP in private IP space - the route is determined ...
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1answer
98 views

IPv6 - Multiple routers and 'dealing' with NAT

Note: I am not thinking of NAT on IPv6. I have the following network setup made up of GNU/Linux boxes: Some network traffic is currently being passed through the VPN tunnel to the internet. ...
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1answer
2k views

OpenVPN server cannot ping client IPs

I have flashed a router at two separate sites with DD-WRT firmware and setup OpenVPN on both. once connected the client can ping computers on the servers LAN however the server cannot ping IPs on the ...
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1answer
478 views

linux ip route via 2 gateways, 3 interfaces

I have 3 interfaces. I'll replace the public ips with 10.x.x.x. eth0: ips: 10.1.1.64-10.1.1.70 mask: 255.255.255.0 gateway: 10.1.1.1 ip route table: gw1a eth1: ip: 10.1.1.71 mask: 255.255.255.0 ...
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1answer
81 views

set up inbound routing LAN-LAN on Windows 2003 server

I have a problem I thought I will find a lot of answers for, but at the end it seems that somehow this topic is nowhere covered. Here is what I want to achieve: I have a Mac running VMWare Fusion, ...
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2answers
1k views

Can't ping gateway once VPN established

I have two servers: Checkpoint Safe@Office 500 with ip x.x.x.x and local network a.a.a.a/24 Cisco ASA5505 with ip y.y.y.y and local network b.b.b.b/28 Before setting up a vpn I was able to ping ...
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1answer
403 views

Routing traffic from Linux through a VirtualBox Windows install

I am trying to connect to an internal client network with my Ubuntu laptop, but the client uses Nortel's Contivity VPN, so it only works in Windows. My idea is to use VirtualBox with Windows XP Guest ...
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1answer
1k views

Possible to port-forward from a Sonicwall (TZ200 series) WAN side through a VPN tunnel? (Answer: Yes)

TL;DR Can a Sonicwall TZ200 series port-forward to a host not on the local internal subnet? If so, can that host be one accessed through a VPN tunnel with the Sonicwall as one endpoint? We have an ...
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0answers
3k views

Zywall USG 300 ipsec config issue

We have a Zywall USG 300 which dials ipsec to a Server 2008 R2 server. This was working until recently when any attempt to communicate with the server sees the following in the logs. error IPSec ...
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2answers
780 views

Checkpoint R75 Security Gateway without default route

I've set up a virtual lab network in vmware with two networks. vmnet2 (192.168.100.0/24) and vmnet3 (192.168.200.0/24). My R75 is having the ip addresses 192.168.100.1 and 192.168.200.1, and is the ...
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2answers
116 views

My server IP routing problem

I am unfortunately from Iran and I have a Problem with my server. when I type in windows CMD nslookup ParsCMS.com 4.2.2.4 it can not find my server IP, but nslookup ParsCMS.com 8.8.4.4 returns ...
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1answer
3k views

Routing 1 LAN + 2 WLANs + 2 WANs (failover) with DD-WRT on WRT54G2

I've installed DD-WRT v24-SP2 micro on a Linksys WRT54G2 v1.0, and I'd appreciate some help on setting up a not-so-trivial network. I've studied the documentation (notably ...
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1answer
216 views

Openvpn: iroute for all theoretically reachable [public] IPs

I am testing the creation of an enforced default route of only public IPv4 space via OpenVPN. OpenVPN does not support 'iroute 0.0.0.0 0.0.0.0' out of the box, because it contains code that rejects ...
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1answer
3k views

how to secure an vmware esxi host on a root server?

for me, a vmware machine normally has 2 lan interfaces, one connected with the lan or the management computer and the 2nd one connected with the wan interface for public access. so security is ...
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1answer
891 views

Ubuntu: pptp client & route all

My purpose is to route all traffic through a pptp connection from a linux machine. (Windows does this automatically after connecting to a pptp server). The command pptpsetup --create TUNNEL --server ...
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1answer
208 views

Routing IPv6 through a Cisco RV042 in gateway mode

I am having some difficulty routing IPv6 through a Cisco RV042 in gateway mode. I am attempting to simulate a small IPv6 WAN between two offices using a /48 prefix. Nothing I do in the advanced ...
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1answer
54 views

Routing in Windows XP with IP restriction

I have WinXP with two connections (e.g. A and B). What is the easiest way to make WinXP act as gateway to B for one and only one given computer (IP) from A?
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1answer
50 views

Moving to Ethernet Extension / Short Haul Data - Do we route or bridge the existing subnets?

We currently have two sites connected via a vpn over a 4mb leased line. Site 1: 172.16.0.0/24 Site 2: 192.16.0.3/24 Thankfully the contract is about to end, so we are looking at upgrading to a ...
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1answer
364 views

Linux router - how to send icmp unreachable messages to LAN clients

I have a Linux home router with eth0 (192.168.0.2/24) and bridge br0 for LAN clients (192.168.1.1/24). Bridge br0 contains eth1 (wired) and eth2 (wireless). The router routes all LAN traffic via eth0 ...
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3answers
664 views

No internet after dhcp lease renews

Today we had a number of machines stop getting internet access. After a lot of troubleshooting, the common thread is that they all had their dhcp lease renewed today (we're on 8 day leases here). ...
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1answer
252 views

Ideas for adding a second internet connection to existing network?

I have a remote site with a T1 connection tied back to a main location. This provides access to the servers at the main location and also provides internet access via the main location. The problem ...
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1answer
7k views

How to route network traffic of a host via another host?

I'm not the System Administrator of our corporate network, but I've got two Linux workstations (hosts A and B) with root access to both. Both hosts can see each other fine (ssh, ping, etc works from ...
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2answers
369 views

redirect packet to different gateway

I have 2 subnets on 2 different network. Both are connected to internet, and linked via site-to-site openvpn like this: Subnet A IP: 192.168.1.0/24 Gateway: 192.168.1.1 Client: 192.168.1.10 Public ...
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1answer
224 views

Problem sending packets based on uid-owner of packet to a network interface

I need to route packets from an owner(lets say with uid-owner 'mailuser') to ppp1 network interface, and all other packets to ppp0 network interface. (Assuming the two network interfaces namely ppp0 ...
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2answers
558 views

Per-user routing doesn't seem to work

So, I'm trying to implement per-user routing so that I'm able to route all btpd torrent traffic over a VPN. Unfortunately, btpd does not currently allow you to bind to a specific IP address. :( I ...
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2answers
3k views

Configure Mac OS X Server as Router?

I'm trying to configure a Mac OS X box with two NICs as a router complete with DHCP and NAT which in theory shouldn't be too much of a challenge but at the moment I'm learning theory and reality are ...
0
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1answer
220 views

Connect networks with identical IPs via iptables+NAT: selecting outgoing network interface

I want to allow connectivity between two hosts which reside on two different networks. Each network is individually managed, so they may have conflicting IPs. My understanding is that NAT is the ...
3
votes
1answer
2k views

OpenVPN redirect-gateway does not work on Windows 7?

i have set up openvpn, and it works. pinging from client to server and backwards works just fine. but now i wanted to redirect all the clients traffic through the vpn. so i did the following steps as ...
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1answer
144 views

cisco 3825 to 3825 routing question

I have 2 cisco 3825 routers connected to two cisco 3560 switches. One is currently our main router with 3 /22 public addresses and the usual slew of rfc1918 address space routed around for internal ...
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2answers
125 views

Reasons to avoid routing traffic through NOC [closed]

I work in a small satellite office of a large corporation. They would like to change our routing structure so all our internet data bounces off their main NOC. They say this is to prevent intrusions ...
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1answer
185 views

Whats wrong with this router config

This is a Netgear FSM7328S which we have VOIP phones hooked up to. The phones will come online for a few seconds\minutes then drop, at which point, we need to go around and manually reset all the ...
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2answers
2k views

Configuring route to use the same interface for outbound traffic as that of inbound traffic

I have a Linux box with two interfaces: one for data and the other for management purpose. If both are on the same network, I have a route added for both interfaces. Imagine the routing table is: ...
3
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2answers
232 views

Multiple IPv6 routers in a local network

I'm setting up some servers that will run virtual machines using IPv6. The network topology is something like this, where the br0 interfaces are virtual: 2001:db8:fedc:aaaa::/64 ...
0
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1answer
126 views

preferential active directory one-way trust targets

If you have two domains and forests, Domain + Forest A and Domain + Forest B, and you are making a one-way trust so that Domain + Forest B will implicitly trust A, is there a way to make sure all the ...