-2
votes
1answer
85 views

Easiest routing solution for a typical firewall with WiFi routers setup - WAN-2-hops-away network

Suppose a local network connected to the internet via a single firewall router. Devices that connect directly (= using only layer 2 devices) to that router are: hosts WiFi routers providing the ...
1
vote
2answers
81 views

Is it possible to see the routing table at the gateway (next-hop) router?

Suppose the output of the "route -n" (on Red Hat/Debian) command is as follows: Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 a.b.c.d 0.0.0.0 ...
0
votes
1answer
362 views

Routing issue with multiple IP addresses on EC2 (VPC) host

We run a EC2 Ubuntu server acting as a STUN server for the NAT Traversal mechanism in my company's application. By the nature of the STUN protocol the server needs two IP public addresses. We hired ...
0
votes
1answer
121 views

Proper destination routing on same interface, same subnet but different gateway

How to make sure, on the same interface, to properly route traffic to the same subnet, based on availability of a gateway? e.g. 10.1.1.1/24 interface eth0/1 gateway 10.1.2.1 pref 10 metric 1 ...
2
votes
2answers
570 views

Can't reach network 192.168.100.0/24

In one of our data-centre we've a Debian machine acting as a router. From this network we cannot reach any of the machines found on 192.168.100.0/24 network. E.g The gateway on the 192.168.100.0/24 ...
-1
votes
1answer
134 views

how do i automatically add a new route to the routing table?

I'm looking at linking two networks with a long range Ethernet bridge. I know I can connect my two networks with a router, but my problem is how will my computers know where to send packets if I don't ...
8
votes
3answers
4k views

Is it possible to include switches in traceroute hops?

I was wondering if it's at all possible to make a Dell Powerconnect 2848 switch show when running internal traceroutes. This would help with diagnosing issues and make it far easier to see where ...
1
vote
1answer
2k views

Internet routing doesn't work in LAN on a two NIC's (WAN + LAN) Windows Server 2008 R2

We have the following network setup: A) Modem (192.168.0.1) with DHCP disabled B) Windows Server 2008 R2 with dual NIC: B1) WAN interface (192.168.0.2) B2) LAN interface (192.168.1.2) C) Switch ...
0
votes
1answer
166 views

Routing between two networks with three router

There are a network 192.168.0.0/24 and a different network on a second location with 192.168.50.0/24 on both networks are a router with 192.168.x.1 who route the traffic. Now i install a new Router ...
1
vote
2answers
783 views

Routing to other subnets results in wrong ARP requests

I would like to manually set up routing to subnet 95.168.0.0/16 through IP which is an alias: 94.23.94.161. IP alias is set up like that: /sbin/ifconfig eth0:0 94.23.94.161 netmask 255.255.255.255 ...
0
votes
1answer
842 views

Configuring ipv6 over radvd using sixxs, routing not working

So this morning, I have been trying to configure IPv6 upon my network using the guide I found on reddit (of all places) at http://ipv6friday.org/blog/2012/06/ipv6-enabling-training/. Now at first ...
3
votes
3answers
3k views

How to prevent asymmetric routing with multiple eBGP routers?

I have 2 routers announcing a /22 subnet to different providers (one providers connects to each of the 2 routers). I have split the /22 in two /23 to announce one /23 on each of the routers plus the ...
0
votes
2answers
343 views

linux route 2nd internal network

In my network configuration, I have three switches: Internet (xx.xx.140.129/25) Internal SAN (10.1.1.0/24) iLo management (10.1.30.0/24) I have one Linux server which I use for management that ...
0
votes
1answer
314 views

Problems with network routing

Could you help, please? I have two network interfaces: 1) Physical interface (12) 2) Virtual VPN interface (39) Without VPN connection I have access to my local network (for example: 192.168.160.35) ...
2
votes
2answers
353 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 ...
-2
votes
3answers
1k views

Packets dropped due to NAT? Firewall? Unroutable private IP addresses?

Preliminary note This question is out of academic interest. I know how to work around the limitation. I use this setup to control access from one subnet to the other on IP level which works great so I ...
7
votes
2answers
1k views

linux routing bug?

I have been struggling with this not easily reproducible issue since a while. I am using linux kernel v3.1.0, and sometimes routing to a few IP addresses does not work. What seems to happen is that ...
4
votes
2answers
313 views

Using Internal or External IP for File Transfers in Data Center?

I am pretty sure I know the answer to this, but 2 technical people in my organization cannot agree, so I'm putting this on ServerFault to get a final opinion. We have a relatively simple set up in a ...
0
votes
3answers
1k views

Ubuntu 10.04: Two interfaces on a same subnet with a same gateway

My ISP has given me a 187.x.x.224/29 subnet. The gateway is 187.x.x.225 I have a Ubuntu server with 6 ethernet ports. The server does NAT routing and also acts as a webserver. My plan is to have eth1 ...
1
vote
4answers
104 views

Help needed on internet routing

Looking for some good video lectures / book / articles which explains in a simple manner how exactly how packet moves in Internet. Searched the net, but couldnt find a GOOD one. Want to know how ...
0
votes
2answers
170 views

Linux, two fiber interfaces connected to each other - routing

I have a Linux box with two fiber interfaces connected to each other. Is there any way to set up routing in a way that would actually send the packets over the link? So far it looks like when two ...
8
votes
2answers
2k views

Redundant OpenVPN connections with advanced Linux routing over an unreliable network

I am currently living in a country that blocks many websites and has unreliable network connections to the outside world. I have two OpenVPN endpoints (say: vpn1 and vpn2) on Linux servers that I use ...
2
votes
1answer
388 views

Linux route cache shows high RTT for loopback - is it normal?

Here are parts of route cache from three different servers that are NOT under high load. # ip route show cache | grep -B 1 rtt local 127.0.0.1 from 127.0.0.1 dev lo cache <local> mtu ...
4
votes
2answers
15k views

Unable to set up a static host route - “SIOCADDRT: No such process”

At my office, there is a Windows Server 2008 router, 192.168.16.1, which is our default gateway. This sends data through our main internet connection. This works perfectly. 192.168.16.1 also has ...
1
vote
1answer
637 views

Disabling IP Routing Mode on Windows 2008

Is there a way to disable the windows 2008's routing mode from the command line (or GUI)? That is, I want the following result when running "ipconfig /all" IP Routing Enabled. . . . . . . . : No ...
2
votes
2answers
3k views

How do I delete a route from Linux routing table

This turns out to be harder than I thought. The routes I want to delete are the "!" rejected routes, but I can't seem to formulate the right "route del" command to pull it off. Here is the routing ...
3
votes
1answer
980 views

Setting up linux routing

The system I'm trying to set up has an IP address 172.31.2.1. Its default gateway is 172.31.254.1. This works fine, and I can reach anything the gateway allows me to go to (172.31.0.0/16 + ...
2
votes
3answers
810 views

Routing my home traffic to another server instead of ISP's default routes

I suspect my ISP has rather poor peering arrangements, causing slow access to several sites that I regularly visit. I determined that fact by proxying my web traffic to a server that I've placed in a ...
0
votes
3answers
1k views

Windows - route traffic via 2 different network interfaces

I have Windows XP systems with two GPRS modems hooked in. There are two copies of my program running, each one connecting to same server in 3rd party network via TCP socket(s). My goal is to "bind" ...
0
votes
1answer
954 views

Routing to a different gateway depending on destination for Windows Network

I have a small network on a single VLAN 10. It's a 192.168.100.x network with a firewall/NAT sitting at .254. Our company relies on some data feeds that are brought into the network via dedicated ...