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

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14 views

Policy routing local user's traffic down a tunnel

I've got a Linux based Firewall/Router running iptables and SNAT for traffic passing through it to the Internet via a single uplink - This is working fine. There is also a small number of applications ...
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13 views

SonicWall Routing Between VLANS

We have a sonicwall NSA 3500, x4 has 2 vlan interfaces so x4:v300 and x4:v301. Each vlan has an IP v300 is 192.168.100.1 and v301 is 192.168.101.1. I then have x4 connected to a layer 2 only switch ...
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33 views

How can I create routes between two separate LANs on the internet over an OpenVPN tunnel?

Diagram I have separate router/OpenVPN appliances at two different sites. The appliances are actually TP Link routers running OpenWRT 12.09, r36088. I would like clients behind these two routers to ...
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25 views

network inbound from other subnets refused to server A, Server A can go outbound to internal networks, but not internet

I have a RHEL 6 server with 4 NICs on 192.168.2.[30-33]/24 Set with DHCP reservations via infoblox, I have checked and the MACs all match up. ifconfig shows /24 for every netmask, and the routing ...
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47 views

Why exactly can't two nearby networks have the same subnet? [closed]

I know it is can't. But after re-think, I don't know the reason why exactly it can't. I did a bit searches, but I couldn't come upon plain answers. Simply say, I have a broadband, giving me IP ...
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13 views

DNSMasq on DD-WRT not working as expected

Following the guide given here I created several DNSMasq options for a local network, however none of them are working as they should. I am hosting a website internally on a viertual server, however ...
3
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1answer
410 views

Internet routing table breaks 512,000 routes [closed]

Looks like with all the mass IP grabs as well as subletting of space, things have finally hit the 512K mark. Anyone on the raw end of an upstream router that ran out of route space? How do most ...
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2answers
38 views

CentOS 5.4, 3 nic-s

I need your help for the following problem: I have a CentOS server with 3 nics: eth0: IP ADDRESS=192.168.4.102 /24 GW = 192.168.4.1 eth1: IP ADDRESS=192.168.2.101 /24 GW = ...
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24 views

Linux IPSec, association established but no traffic

We are attempting to setup an IPSec tunnel from a Debian firewall/router to a Netasq hardware firewall. On the Debian side the tools used are IPSec-tools and Racoon. The IPSec SA is established ...
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1answer
21 views

Cisco ASA Outside to Outside NAT (forward from one public ip to another public IP)

I have an ASA (A) with a set of public IPs (A1..A6). And I have another server S with a public IP (S1) . I want all traffic to A2:22 NATed (forwarded) to S1:22. (SSH is just an example here) If ...
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2answers
26 views

Windows 8 is not always selecting correct network card for my outgoing transmissions

The company I work for builds and sells industrial machines. One of our products is a machine which is controlled by a PC running Windows. This particular machine uses a networked device with ...
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25 views

Routing traffic from LAN over VPN link out to 'net; works from router, not from LAN. What route is missing?

I have 3 machines. 2, routers, are connected over a VPN. The 3rd is a PC on the lan behind one of the routers. internet | | ROUTER S1 external: YYY.56.52.56 ...
1
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1answer
53 views

Windows ignores which interface to use in routing table

Hi i'm running windows 7 and i have 2 network cards, one wireless with internet connection and one wired with local lan connection. I want to use both at the same time so i set the lan card to 1st ...
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0answers
26 views

Windows 2008 / 2003 DC can not ping gateway or internet

Im doing some tests trying to setup a domain and i found a very weird behavior. Same thing on windows 2008 r2 and windows 2003 x64 r2. I am running on KVM over proxmox virtualized with virtio. After ...
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2answers
34 views

list all route tables

I need to know how to list the IDs of all route tables. For example, I can run: ip rule add fwmark 2 table 104 ip route add dev eth0 default via 192.168.3.7 table 104 A call to ip rule list shows: ...
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1answer
50 views

Linux Unraid route traffic through different interfaces

I have two interfaces: eth0 and tun5. eth0 is an ethernet to a router and tun5 is a VPN tunnel. These are on an UnRaid server, which is based on Linux. It's a headless server so I access it via SSH. ...
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0answers
39 views

How do I get IPv6 packets to my KVM virtual machine?

My setup is: Debian Wheezy x64 on the host and on the guest. I am using a tun/tap setup to connect a virtual machine to the host. The KVM network options I use are: -net ...
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2answers
27 views

Iptables does not seem to be applying SNAT to packets sent on a raw socket

I'm sending packets from a user space program to my wireless interface wlan0. I've set up a SNAT rule with iptables as follows iptables -t nat -A POSTROUTING -o wlan0 -j SNAT --to 192.168.1.3 And ...
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0answers
32 views

Inter VLAN Routing

I have VLAN 1 and VLAN 2 setup on HP ProCurve Switch, each linked to a different scope on DHCP server. VLAN1 = 10.220.0.0/23 VLAN2 = 10.210.0.0/21 I can't ping VLAN1 devices from VLAN2 and vice ...
0
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1answer
18 views

PBR with iptables

I know question was answered multiple times, but this situation a bit different. So here is what I have: All users must user default gateway on eth0, except one That one must only use gateway on ...
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0answers
15 views

Server 2008 web traffic routing

I have a single server 2008 environment with single NIC - 192.168.0.11 Router0 = 192.168.0.250 (Current Default Gateway) Router1 = 192.168.0.251 At the moment we have a single SLOW ADSL 3mbps ...
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0answers
36 views

Ubuntu refuses to route packets for public subnet through linknet

I've run into the novel concept of routing through a linknet from my new ISP, and am currently trying to get a /28 routed properly on my Ubuntu 13.10 server. However, this is proving futile. This is ...
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0answers
20 views

PPPD timeout delete the default route

If i have a connection timeout on the PPPD Client the default route will disappear. IP Routing Table (add route dev ppp0) Destination Gateway Genmask Flags Metric Ref Use ...
0
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0answers
36 views

racoon server (debian) with openswan client (ubuntu) l2tp-ipsec-vpn - ppp mess up routes

may somebody could help me, I've setup l2tp-ipsec-vpn, it works just with little problem, but PPP pushes new routes, when in config file it's disable (nodefaultroute), even it doesn't delete original ...
1
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1answer
46 views

How do I forward localhost traffic to a remote host with iptables?

I would like to set up my CentOS 6.5 box to forward connections to localhost (127.0.0.1) to the same port on a remote machine (e.g. 10.0.3.10). I've tried the iptables rule below, but when I attempt ...
0
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22 views

Routing, OpenVPN and blocked Packets to Router

I have a running Zentyal Router. Now I have created a Softether-VPN (which wraps OpenVPN basically), to connect to this network per Network-Bridge/L2-Switch. So, when I connect per VPN I am in the ...
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0answers
27 views

DRAYTEK - VLANs with VLAN tagging switches / router

Our company uses Draytek routers (various models, slowly upgrading to 2860n at each site). We have recently purchased a new site, and want to split the network up into separate VLANs, so as to ...
0
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0answers
16 views

NAT with multiple connections

I have a linux server with 2 WAN connections. It has 2 public IP address as WAN_IP1 and WAN_IP2. The server default gateway is WAN_IP1. The server also has 2 LAN interfaces and the relative subnets. ...
0
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0answers
31 views

HTTP not redirecting to HTTPS, Router or Firewall Issue?

I manage an application server in a different department from IT and since they implemented a new firewall as part of emergency maintenance, users are having issues accessing the web app(Blackboard). ...
0
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1answer
19 views

Setting up a VPN with rules who can connect with who

For delivering updates and support on software I've been working on I have been thinking about setting up a VPN server. The idea would be that the clients are constantly connected but only the traffic ...
1
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1answer
64 views

How to set up the routing mail server with public static IP interface and private IP interface

I a building an email server that will use Postfix for SMTP, and Dovecot for IMAP. This server will have two interfaces: wwan0 - this interface has a static public IP address, and will be used by ...
0
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1answer
33 views

OpenVPN Site-to-Site Routing Woes

I'm fighting with an openVPN setup for connecting two sites. This is what the scenario looks like Office 1 (server): local network: 192.168.178.0/24 openvpn server public ip: 192.168.178.2 on br0 ...
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0answers
15 views

Routing/forwarding aren't working with quagga [partially]

I have the following design: [m1] eth1 10.10.1.1, cable m1m2 || [m1] eth2 10.10.2.1, cable m1m4 [m2] eth1 10.10.1.2, cable m1m2 || [m2] eth2 10.10.3.2, cable m2m3 [m3] eth1 10.10.3.4, ...
1
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0answers
77 views

Route two public (ISP assigned) subnets on 'outside' interface of Cisco ASA 5510

We've got a Cisco ASA 5510 that sits on our edge and acts as the PPPoE endpoint for a fibre connection. The fibre connection came with a static IP, which is assigned via PPPoE, and gets picked up by ...
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31 views

VPN routed traffic, response goes outside of VPN?

Here's a weird one. Whenever I'm on a hotel network I tend to like to route all my traffic through my home network. Mainly since I'm not entirely sure all my passwords go through SSL all the time. ...
0
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2answers
62 views

iptables treating ssh and http requests differently

Here are the facts: server (IP 192.168.1.140) that runs openssh on port 22 and nginx on port 80 server sits behind firewall/router (IP 192.168.1.1) that has identical iptables rules for openssh and ...
-1
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0answers
60 views

3 network interface and 2 subnets (same ip) routing

System description 1 GNU/Linux Box with Arch Linux OS 3 network interfaces 1 for WAN network 2 for every LAN LAN2 and LAN3 description On every LAN we have 3 devices main 192.168.2.2, second ...
2
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1answer
24 views

ASA Static Route over PPPoE interface

I have an ASA5505 with two PPPoE connections. I wish to add a static route to route just a single subnet over the new PPPoE connection, but the ASA does not seem to allow routing over interfaces ...
1
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0answers
31 views

trying to reach a port forwarded server from the subnet using the public IP not working

I set up a server which is connected to my router. The router forwards a port of my server. So when I scan that port using http://www.t1shopper.com/tools/port-scan/ I got: 188.143.126.14 is ...
0
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2answers
60 views

IPv6: “Destination unreachable: No route” Routing error?

I've got an IPv6 address added to a bridge (sysctl has been configured to enable forwarding). However whenever I try to ping an IPv6 host it fails with the following error: PING ...
0
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0answers
81 views

xen routed networking maximum segment size

For a few days now we experience issues with xen in routed networking mode regarding the MTU and MSS values (xen 4.1, debian wheezy, ISP is Hetzner) (network-script 'network-route netdev=eth0') ...
1
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0answers
42 views

DNS does not route properly to WAN NIC when dnscrypt is used

I have a Windows 2003 server with AD integrated DNS. I'm trying to configure the server to make outgoing (forwarded) DNS requests through dnscrypt proxy instead of through the normal TCP/UDP 53. I ...
0
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2answers
41 views

Assign IPs to programs/processes

I need to assign different IP addresses to different processes (mostly PHP & Ruby programs) running on my Linux server. They will be making queries to various servers, including the situation ...
0
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1answer
25 views

windows route not followed

I add a route on the windows network like so: route -p add 46.137.226.16 mask 255.255.255.255 10.20.1.1 The goal is for traffic to 46.137.226.16 to be routed via the VPN/remote gateway on ...
0
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2answers
81 views

Windows Server 2012 NAT Routing won't route clients from subnet (multiple external ips)

I obviously have some knowledge gaps in routing maybe you can help me: My ISP has given me 8 external IPs but I have to route them myself. The first IP is issued via DHCP and the other 7 are fixed. ...
2
votes
2answers
120 views

ip route get recognizes address as anycast

# ip route get 1.2.3.4 anycast 1.2.3.4 dev eth0 src 5.6.7.8 and the question is how does it know the address is an anycast ? (which apparently is true). UPDATED: Present as anycast route: ...
0
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1answer
40 views

Serve different domain requests to multiple servers (i.e. Apache/Node) all through port 80

What I'd really like to be able to do is run Node, and Apache (or maybe nginx) on the same Raspberry Pi (running Debian for Pi). In the way that apache can set up vhosts for multiple sites on the ...
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1answer
20 views

OpenBSD configs to EdgeRouter

is it possible to transfter OpenBSD router configs, such as firewall settings, DHCP settings to EdgeRouter-Lite?
0
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1answer
48 views

Cisco ASA 5510 Inter-interface routing

I'm trying to setup a Cisco 5510 to route traffic between the outside and inside interfaces where both belong to public IP subnets. Our ISP assigned us a single point-to-point IP (207.107.110.150/30) ...
0
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0answers
39 views

openvpn server for mobile access routing/bridging

I'm running a web server on an IPC and want to get access to the network with VPN, because the customer doesn't want to host his data directly on the internet. This web server runs a webapp, which ...