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

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3k 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 ...
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1answer
808 views

Can I route one IP address on a subnet via a different NIC from all the others

I have a windows 7 client with a wired ethernet NIC and a wireless 802.11g NIC. The wired ethernet NIC is connected to a network switch and has subnet 192.168.0.*. The wireless NIC is connected to a ...
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1answer
261 views

What is Address family command node in cisco iox [closed]

What is Address family command node in cisco iox and how can I use it?
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1answer
76 views

Providing reverse records for records that map to ISP IP

I have been instructed to use my ISP ip (as a temporary fix for mapping my name server and domain records as my router dishes out rfc 1918 adresses to devices in my network where I am running an ...
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1answer
347 views

Enterasys What Does the Keyword “recursive” Mean in “ip route” Statement

I'm looking at a configuration for an Enterasys layer 3 switch. I'm trying to diagnose why traffic is going a particular way. One of the route commands has the keyword "recursive" in it. The command ...
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1answer
85 views

Would appreciate a routing configuration advice

I have a problem with a host visibility which I think is caused by incomplete network configuration. There is an ADSL-router which has a DMZ subnet 192.168.0/24. In this network there is a wireless ...
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2answers
621 views

Dell powerconnect 6224 vlan routing

I have a small network and I need help with routing .. . My VLANs VLAN 1010 SALES VLAN 1020 HR I have assigned the above vlans to a tagged port and I have added a default route to send the ...
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1answer
307 views

Route Traffic Through Linux Server With Two Devices

Here is my current setup (all servers are Ubuntu Server Edition 12.04): Server 0 has two devices, eth0 and eth1. eth0 is connected to the wall (the internet), and eth1 is connected to a switch. ...
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1answer
166 views

IPv6 routing to another interface

I'm trying to get an IPv6 enabled router to forward data from one interface to the other and I'm having issues. When following this example ...
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2answers
142 views

Routing between same network

Hi In this scenario there is point -to point serial connection between R6 and R7 , there is router R10 whose interface F0/0 is having ip address of 10.1.1.2/24 and there is a host machine (R9) ...
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1answer
73 views

How to setup route to browse internal website through openvpn?

I'm totally newbie in network, and I encountered a problem that I have no clue how to solve. We have an internal appliance plugged in the internal network, and there's a cloud instance that uses ...
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1answer
658 views

Asymmetric routing with two ForeFront TMG 2010 firewalls

I have a bizzarre networking problem. There is a network, a single IP subnet: 192.168.60.0/24. The network has two Internet-connected firewalls (running ForeFront TMG 2010), 192.168.60.253 ...
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2answers
181 views

Is this IPv4 and subnet combination public or private? [duplicate]

Possible Duplicate: How does IPv4 Subnetting Work? I thought I understood this but I am momentarily confused. Here is an example: Are all IPv4 addresses from 192.168.0.0 to 192.168.255.255 ...
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1answer
38 views

Web hosting - horizontal scaling

I have a single machine that I use to host multiple websites with virtual hosts (lighttpd webserver), I can't say I am in a professional environment as I am hosting mainly for small websites and ...
0
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2answers
416 views

OpenStack using one public IP address from multiple servers

I am testing out openstack and have it all configured but with my current setup I have only one public IP address which is assigned to the servers public interface. Is it possible to assign multiple ...
3
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1answer
7k views

forcing network traffic to route via a specific, non-default interface

I've got a bunch of Linux servers with multiple(3) NICs and associated network interfaces. I'm tripping over a bizarre routing problem, where traffic that should use the default route is not, and ...
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1answer
175 views

Connectiong adsl router/modem and router with bridgemode

I have one adsl modem/router which is not "top" of the line and it lack allot of options which I need. I was able to acquire one Cisco router recently which has all options that I need ( like DMZ, ...
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1answer
3k views

VPN setup on mikrotik router

I have successfully setup a pptp vpn server on a Mikrotik routerboard. I am able to connect to the VPN and can successfully access a certain IP range. This is my setup: ADSL modem/router - mikrotik ...
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1answer
228 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 ...
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1answer
474 views

Policy Based Routing does not work on Force10 S50N

As soon as I turn on PBRs on our Force10 I'll get the following message: %ACL_AGENT-2-USRFLOW_CAM_FULL: UserFlow Cam is Full Any idea what that means? Basically non of the PBRs are working so I ...
2
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2answers
290 views

How to use 2 subnets on one network

I have some servers at a colocation. They've given us an IP range, subnet and gateway. Now we have run out of IP addresses and they've given us a new range of IPs but with a different subnet and ...
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3answers
1k views

Using a nat rule to translate 80/443 traffic to web server, but internal users cannot access it using external ip/domain name

I am using Cisco ASDM for ASA I have my internal network called soa. My outside interface is called outside. Let's say my outside IP given to me by my ISP isp is y.y.y.y I have a web server inside ...
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1answer
84 views

Blocking ICMP outgoing requests only in eth1

I am creating a NAT with iptables: Computer A: eth0 (dhcp) + eth1 (static ip 192.168.0.1 - gateway) Computer B: eth1 (static ip 192.168.0.2, using Computer A as gateway) I know how to block ICMP ...
2
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1answer
751 views

Can a Private VLAN trunk also trunk normal VLANS

Imagine a topology with Switch A and Switch B trunked together. Also imagine a router on a stick attached to Switch A that routes for these VLANs. The VLANs are as follows: VLAN 1 = 10.1.1.0/24 ...
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1answer
801 views

Multicast in private LAN with different subnets

after i read Multicast IP Addresses and Multicast accross the subnets I am confused. Configuration: I have two devices in the same network. They may not be in the same Subnet, but ...
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1answer
128 views

I couldn't get 2 NICs working together on Ubuntu 10.04

I've got an Ubuntu 10.04 server with this configuration: eth0: 192.168.10.XXX mask 255.255.255.0 gw 192.168.10.254 eth1: 192.168.0.XXX mask 255.255.255.0 gw 192.168.0.3 eth0 is used for incoming and ...
2
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1answer
817 views

Routing between two VLANs on Single Dell 6200 Switch

I want to be able to route between two vlans that I have created and I am not sure how to go about it. So I have created, VLAN 5 with IP Address 192.168.5.1/24 and VLAN 10 with IP Address ...
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1answer
211 views

Using Public Static IPs and Private DHCP IPs on the Same Router

I have a subnet of public IP addresses that my ISP has provided me with. They are routed through my router (how profound) that has a static IP. I have successfully assigned the IPs from that subnet to ...
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1answer
87 views

How can I tell if a host is bridged and acting as a router

I would like to scan my DMZ for hosts that are bridged between subnets and have routing enabled. Since I have everything from VMWare servers, to load balancers on the DMZ I'm unsure if every host is ...
2
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1answer
776 views

Packets marked INVALID in FORWARD rule

I have a firewall that has 3 IP aliases on 1 physical interface. Packets get dropped between these 3 interfaces (either ICMP, HTTP, or anything else). We tracked it down to these packets being marked ...
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2answers
574 views

Multiple VLANs on a single subnet

I would like to establish the setup shown below. The image is taken from (http://gcharriere.com/blog/?p=620) and explains how to set this up on a brocade device. I would like to use an ubuntu server ...
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2answers
916 views

Inter-vlan routing issues

I've been brought in to help administer a network and I've run into an issue - I'm not sure why this one is beyond me, however I figure an extra set of eyes on the problem may help resolve the issue. ...
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2answers
777 views

Cisco Redirect traffic to an interface

I have a Cisco 2901 with 2 internet WAN connections, one it have a static public ip, and the other one have a ftth dial connection. I have already both configured but what i need is the following: ...
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1answer
215 views

Routing using switches instead of router

So I have a SAN connected to VM hosts using a 100mb CISCO router. Apparently this results in a maximum data transfer rate of 12mbps, which is very poor. There is full redundancy between the SAN and ...
0
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1answer
79 views

Strange Network issue

No Internet access for all workstations Internet working for some servers, eg. DC MPLS network > Switch > workstation MPLS network > Switch > server Workstation troubleshooting - tracert google ...
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1answer
294 views

Ubuntu 12.04 as router with 2 nic

I have been trying this setup for weeks and still can not make this to work... ubuntu 12.04 64 bit with 2 nic nic1: eth0:192.168.2.33 -static ip with internet access (connected to modem) nic2: ...
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2answers
70 views

Service redirection on same network

I have a network on which I run multiple servers each dedicated to a given service. Because most services run on distinct ports I'm currently looking for a way of unifying "all" services into a ...
3
votes
2answers
439 views

why do Vagrant docs suggest using public IP address 33.33.33.10 for local VMs?

I'm following a tutorial to set up vagrant (a tool to build and configure portable virtual machine images), and it seems that vagrant documentation suggests using IPv4 address 33.33.33.10 to configure ...
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3answers
135 views

Linux: Route subfolder to different port [closed]

I have setup a JIRA instance and it now listens on http://mydomain.com:8080 Now I want to expose it like http://mydomain.com/jira Can I do this with linux tools (iptables ...) alone (and how) ...
3
votes
2answers
190 views

Preventing endless forwarding with two routers

The network in quesiton looks basically like this: /----Inet1 / H1---[111.0/24]---GW1---[99.0/24] \----GW2-----Inet2 Device ...
11
votes
1answer
27k views

What CAN cause 'RTNETLINK answers : No such process' when adding a route

I have come up against this error a number of times, but haven't yet found an explanation of what the error means, or what can cause the problem. I'm not posting my configs or the specific route I'm ...
3
votes
2answers
1k views

Routing using Linux with 2 NIC cards

Configured Clear OS to be in Gateway mode on a machine with two NIC cards. eth0:192.168.2.0/24 with ip 192.168.2.27 which is connected to a modem and thus have internet connectivity. ...
2
votes
3answers
342 views

Routing domain on lan

I have LAN setup with public server on it. The server is accessible via domain example.com. If I access example.com from within lan, it goes over my ISP. I wish it went just over my local network. ...
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1answer
190 views

IPTables drops packets

We're experiencing some issues connecting to a remote FTP site (we randomly get timeouts on connect), and while we tend to think that the issue is with the remote FTP server (one clue is that we're ...
0
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1answer
2k views

Ping reply not getting to LAN machines but getting in Linux router Gateway

I have configured Ubuntu 12.04 as Gateway machine.its having two interfaces eth0 with ip 192.168.122.39(Static) and eth1 connected to modem with ip address 192.168.2.3(through DHCP). ...
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384 views

Clear OS Community and packet time out in client machines only

I am having Clear OS Community Edition running as router with 2 network interfaces. Interface eth0 is connected to LAN with ip 192.168.122.2 and interface eth0 with ip 192.168.2.2 is having internet ...
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1answer
1k views

Reach pc in the same network but a different subnet

PC 1 in subnet - 192.168.1.x PC 2 in subnet - 192.168.2.x Is it possible to access one pc from the other by its IP address without special router config? related: How to reach a device on a ...
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2answers
234 views

Default route not on LAN

I have a network that in principle looks like this: H1---\ /----Inet1 H2---->---GW1---< H3---/ \----GW2-----Inet2 H1 and H2 = Hosts that need access to internet with GW1 ...
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0answers
135 views

No external src ip in log files (my router ip appears instead)

I recently retired my workhorse WRT54G router/AP in favor of a Linksys EA2700. Since then, all inbound traffic (bound to an Ubuntu 10.02 box running LAMP)logged to Syslog, Apache's error and access ...
3
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2answers
8k views

How to route between 2 networks with a server with 2 network cards?

This is the first time I am faced with routing and it seems I have hit a dead end. I have the following scenario: client1: 192.168.1.10 255.255.255.0 gateway: 192.168.1.100 DNS server: ...