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

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1answer
23 views

enable ip forward with specific port

I have two servers the first one under Linux (Amazon Linux) server with two network card eth0 (IP 1.1.1.1), and eth1 (IP 2.2.2.2), and the second one under Windows server 2008 R2 (IP 3.3.3.3 install ...
0
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1answer
36 views

ipv6 static routing is not working

wondering ipv6 static route default route nothing working, only can ping the directly connected interface, but sh run command gave the static routes which I created to other networks, but on the sh ...
0
votes
1answer
36 views

Change source IP for specific target host

This is a follow up to this question of me. (Still on Debian 7.8) The problem isn't really IPSec related or anything, because I can't even ping the remote host with the "correct" source IP (through ...
1
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0answers
46 views

Cannot Reach Secondary Subnet on Same Interface

I am running a Cisco 1841 which has an unmanaged Dell 2848 connected to it. Connected to a WIC card in the 1841 is a fiber run which goes to a subnet of devices. The primary subnet is 192.168.2.0/24, ...
1
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1answer
51 views

How do I connect multiple subnets together?

I am not a networks expert, I have a basic knowledge of networking. In my workplace I have 3 dsl routers with different subnets (192.168.0.0, 192.168.1.0, 192.168.2.0). They are connected to a ...
0
votes
1answer
23 views

routing between juniper NS Firewalls

we have site to site VPN between new york office Firewall (NS) and dublin client firewall. we have another office located in mumbai and configured site to site VPN between new york and mumbai office, ...
0
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0answers
60 views

pfsense routing with dmz wan and sonic wall

Pfsense setup: 2 physical NIC's (1 input from modem/ISP, 1 LAN with a lot of vlans and DMZ) Network setup: WAN block from ISP xxx.xxx.xxx.225/28 Modem -> pfsense -> vlan 40 (192.168.40.0/24) ...
1
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0answers
27 views

How to Route google apps gmail based on subject line?

I set up a bunch of routes in my new google apps system (migrating from doing inbound email with mailgun forwarding). In one case we need to forward all email with a particular subject to another ...
2
votes
0answers
56 views

When is route lookup performed when a packet flows through iptables?

Iptables is often illustrated using diagram I fail to understand when route lookup (routing tables) is performed: inside the "Routing Decision" grey boxes? If so, does it mean a packet is routed ...
1
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2answers
44 views

How to use a server as a “tunnel” in between the clients and the router, in a small network?

Consider a small network with 1 router (192.168.1.1) and clients (192.168.1.x). The router (OpenWRT) provides Ethernet LAN and WiFi for the clients, to connect to the Internet. Now, I want to use a ...
0
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0answers
48 views

vyatta virtual router interface aliasing does not work

I am trying to create an alias on vyatta virtual router. But I do not seem to get it to work. In vyatta we have to just add another address to the interface to add an alias. But the interface is not ...
1
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1answer
24 views

Juniper SSG20 Additional subnet on adsl interface

I've configured a Juniper SSG20 to have some clients natted to the internet with the main ip address (X.X.27.90/30) of my IPoA ADSL connection but i have also some servers i wish to connect with a ...
1
vote
4answers
189 views

Cisco ASA Implicit rule dropping traffic

The network is as follows: Two Default Gateways exist on the network - one which provides connectivity to the an MPLS with several subnets. Let's say 10.0.0.2 Another which is a Cisco Firewall, on ...
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votes
1answer
45 views

Multiple Gateways on LAN

This is more a theoretical question. Let's assume we have a Firewall/DG (with a connected WAN) on LAN IP 192.168.1.1. All external DNS records for incoming services like OWA, FTP etc. point to this ...
1
vote
2answers
41 views

Watchguard VLAN Head-Grasping needed

I am trying to wrap my head around setting up my new watchguard M400. Here's what I need to figure out and what I've done so far. My ISP provided me with a P2P IP, which I plugged into my interface ...
0
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0answers
37 views

Pass multicast packets between subnets. Which static routes need to be added?

I have searched forever but cannot find a clear instruction how to set this up. I have a router providing two LANs over bridges LAN 1 on 192.168.1.0/24, bridging two access points (2.5 and 5GHz) ...
0
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1answer
35 views

How do I use CSF to redirect domain requests to a port?

I have a server setup that uses two different webservers with different subdomains. Right now the servers listen on different ports (80 & 4000) So users don't have to put in :4000 I'd like to ...
1
vote
1answer
39 views

Quagga, OSPF, announcing inactive tunnel

I have a 3 node network with OSPF Quagga running on each of them. Each node connected with p2p, OpenVPN: http://vetal.ca/Download/img/Network_loop.png (Will embed picture here when have reputation > ...
1
vote
1answer
28 views

Route new outbound traffic

I am looking for some iptables rules which can help me to route some traffic from a server : Client 1 ----| Client 2 ----| |----------| Client N ----| ssh, ...
0
votes
1answer
37 views

Seperation of network traffic\routes

In a lab environment I have 4 VLANs: VLAN10 -> Management (192.168.10.0/24) VLAN20 -> Service (192.168.20.0/24) VLAN30 -> Administration (192.168.30.0/24) VLAN50 -> Public (192.168.50.0/24) ...
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votes
1answer
50 views

Routing FQDN to Web Server on Specific Port [closed]

I am running multiple web servers on a single machine. localhost:9000 localhost:8080 I want external requests (from the open net) to mysite.com to route to port 9000 and myevenbettersite.com to ...
0
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1answer
104 views

How to serve first Nginx regex server_name servers

I have a Nginx config which look like this : server { server_name sub2.sub1.example.com; listen 80; return 301 https://$host$request_uri; } server { listen 443 ssl; server_name ...
0
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0answers
23 views

Watchguard BOVPN and new ISP

We are changing our Internet Circuit to a new ISP. During testing I have both circuits, plus a failover circuit connected to our WatchGuard XTM515 I can browse the Internet, and Ping via the new ...
1
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0answers
45 views

Ubuntu Router to connect two networks via IPv6

I am currently in the situation that I want to add one network of homogenous linux nodes to an already existing windows network. For administrative reasons the linux nodes are not going to be added to ...
0
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0answers
33 views

source based routing policy use ip route not works on my vm

I have an vm created with vmware. an installed centos 7 as os. the kernel is 3.x. now , my system have to network interface. and I want connect them to the same network. forexample : ...
1
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1answer
53 views

How would traffic be routed with this routing table

I ran across two entries in a linux routing table that both have the same destination, but have different gateways. How would this traffic be routed? I've been searching around online for additional ...
0
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0answers
143 views

pfSense 2.2: HAProxy for HTTP + CARP + MultiWAN with VIPs issue (Outbound NAT?)

I have two pfSense firewalls with CARP setup, 2 WANs and HAProxy that points to HTTP servers in my LAN. Scheme: **pfSense server #1** ISP#1 - Public IP1.1 - pfSense#1 with HAProxy - HTTP ISP#2 - ...
1
vote
2answers
411 views

Nginx Make website inaccessible via IP

I've got my website set up to be accessible via example.com. If possible I want to prevent it from being accessed via its IP altogether or at least 301 redirect it to website. Is the former possible ...
1
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1answer
61 views

multiple subnets on the same switch(es), how can I isolate it?

I am by no means an expert when it comes to networking, I've inherited one which I am pretty much sure is wrong and due to my lack of experience I have no idea how to clean it up. The network looks ...
0
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0answers
66 views

Windows Server 2012R2 Hyper-V Additional Public IP Subnet

I am using Ubiquti Hosting for a bare metal server. The server has a base IP address space of: Main IP: 24.79.37.82 Default Gateway: 24.79.37.81 Subnet Mask: 255.255.255.248 Usable Range: ...
0
votes
1answer
84 views

Large number of ssh login attempts [duplicate]

I logged into a CentOS box today to find the following" There were 11126 failed login attempts since the last successful login. Last login: Tue Mar 10 14:36:47 2015 from X.X.X.X Thats 11 THOUSAND ...
0
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0answers
33 views

Route traffic based on source IP

I have two routers set up with different WAN IP's from different providers. Both routers have LAN IP's on the same subnet (10.2.2.x) and are connect to a switch. All hosts currently on the LAN subnet ...
1
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0answers
17 views

Troubles with subnets and redirections

What I want to create is 2 subnets that communicate each other through a gateway. Here is my gateway: wlan0 Link encap:Ethernet IndirizzoHW c4:46:19:69:b7:a5 indirizzo ...
0
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1answer
32 views

How to set a routing to a website with a specific ISP?

We use a Dell SonicWall 2600 Firmware Version: SonicOS Enhanced 6.1.2.0-11n Safemode Version: SafeMode 6.1.0.9 ROM Version: SonicROM 5.4.0.15. We have 2 ISPs, one fiber connection and one ADSL ...
0
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0answers
25 views

Auto modify all routes by a specific dev

I have to modify all routes using one specific dev. Not even modify, just append a correct src то the end of a route, like this: x.x.x.x(destination network) via y.y.y.y(MYDEV ip) dev MYDEV(network ...
0
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1answer
69 views

Clients connected to “vlan hub” can't access internet on dedicated, natted vlan

I'm trying to get my network up and running with my new provider's vdsl router, which can't operate in "modem-mode" or "bridge-mode". My setup so far is as follows: I have two managed switches, ...
0
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1answer
161 views

Windows Server 2012 using Remote Desktop through RRAS to private network

I've already posted this on the Microsoft TechNet forums, but his site seems to provide more informative answers, so here goes... Here is my network configuration, in a nutshell. Cisco small ...
4
votes
1answer
185 views

Possible to have DHCP hand out different DNS server address when using different tunnel?

We have several ASA 5505 deployed. Currently, we have a setup where the local ASA is answering DHCP queries and is configuring clients with two DNS servers: our DR site DNS server (we use AD) and a ...
0
votes
2answers
97 views

Installed a new Sonicwall at MPLS provider's DC, got it working by luck but have no idea WHY it's working like this

I'm nervous leaving the device like this because it makes no sense to me WHY it's working like this. We put in the new Sonicwall to replace an older Cisco ASA. Just did the basic setup, using same ...
0
votes
0answers
91 views

VPN to Windows Server 2012 on ec2 not routing

I have a Windows Server 2012 instance on EC2 so I can VPN into the private network to access machines not exposed via a public IP. I can connect to the Windows Server VPN by its public IP and ...
0
votes
0answers
37 views

Re-routing packets back inside the network on a SonicWall firewall

I have two wireless networks, one guest network which uses a 10.0.0.0 network to assign IP address to guests and one internal one who gets the IP address from the internal DHCP (let's say ...
0
votes
0answers
59 views

Routing between eth0 <-> tun0 doesnt work

I am configuring a linux vm as a openvpn client to act as router to route to another machines connected to the central vpn hub Data. Lan: 192.168.10.0/24 Remote vpn subnet: 192.168.40.0/24 openvpn ...
0
votes
1answer
35 views

How to duplicate multicast packets on several interfaces?

I would like to send a stream from a Linux server to several Linux clients via a multicast address. The clients are directly connected to the server but on different interfaces: bnep0 and bnep1. ...
1
vote
2answers
119 views

what is a non routable vlan, and when should I need it?

Can someone explain me what is a non rout-able vlan, and when/why situation I will need it? as far as I know it's a vlan that won't assign IP automatically, and only devices in the same vlan can ...
0
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0answers
28 views

Microsoft Application Request Routing (ARR) routing condition from HTTP body

I want to build the following system, but want to route depending of the HTTP body, in my case SOAP messages. Is that possible and how? These are the available HTTP headers and server variables, ...
1
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2answers
144 views

router: ping fails at specific time for 40 seconds

my network looks like this: ISP cable --- ISP modem/router (2 in 1) \ \--- my router --- wifi connection --- computer 1 \----------- cable connection ...
0
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1answer
63 views

How to configure two default routes on Linux?

I'm configuring a routing server with Linux. An Ethernet link (eth0) to internet (fast, but can't access some sites); An OpenVPN link (tun0) to provide internet access to local users; An OpenVPN ...
0
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0answers
95 views

iptables, outside and inside NAT; Return traffic going out incorrect gateway

Overview (TL;DR at bottom) I have a third party firewall/proxy appliance which is running Linux (Ubuntu), and its routing and firewall engine is backed by iptables and the Linux (source)routing ...
0
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1answer
62 views

Windows Server as a PPTP Gateway

I have a Windows Server 2012 server at work, which is currently used as a domain controller, and an internet gateway. The current internet connection uses a USB dongle, which appears like a standard ...
0
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1answer
182 views

OpenWRT: Redirect traffic from LAN port #4 to specific IP address

I am working with a TP-WR1043ND OpenWRT router which allows port mirroring, as described in the dedicated wikipage. I'm mirroring the WAN port (#0) to LAN port #4. There is no cable in the LAN port ...