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

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70 views

usage of RIP in production networks (routing protocol)

Based on the Cisco textbooks, link-state routing protocols (e.g. OSPF) are preffered over distance-vector protocols (e.g. RIP) and the reasons cited are typically convergence time and loop prevention. ...
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1answer
23 views

Change default gateway on Linux [on hold]

I can change the gateway for a particular IP with sudo ip route add x.x.x.x via y.y.y.y but if I do the same with all IPs with sudo ip route change 0.0.0.0/0 via y.y.y.y then I lose the connection ...
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0answers
9 views

Windows routing don't pass packets [on hold]

I have a win server 2008r2 with routing and remote access role wan interface 54.93.71.23 domain.com lan interface 172.16.0.0 From internal network i can access to www except our domain.com Router ...
2
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1answer
65 views

systemd-networkd and direct routes

I have problem adding direct routes through systemd-networkd. What I'm trying to achieve is similar to: ip a a 192.168.0.2/32 dev enp0s3 ip r a 192.168.0.1/32 dev enp0s3 ip r a default via ...
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0answers
25 views

Proper network configuration on WAN interfaces [on hold]

I am curious about how this configuration works. The final result (by me): When I ping from PC0 to PC1 I get a response. I left the RIP empty for each router and I could still ping PC1 from PC0. ...
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1answer
23 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
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1answer
63 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 ...
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3answers
376 views

Nginx + Unicorn multiple apps with locations - routing

I would like to run multiple rails apps with just using different location blocks. Different unicorn workers are started and configured, they are working just fine. Every app is under the same ...
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0answers
7 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 > ...
2
votes
1answer
2k views

How to force certain traffic through GRE tunnel?

Here's what I do. Server (public internet is 222.x.x.x): echo 'net.ipv4.ip_forward=1' >> /etc/sysctl.conf sysctl -p iptunnel add gre1 mode gre local 222.x.x.x remote 115.x.x.x ttl 255 ...
3
votes
2answers
3k 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 ...
1
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2answers
367 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 ...
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3answers
922 views

How to make same server IP accessible from multiple interfaces that are not bridged on Windows 2008 R2?

My server have two interfaces (e.g. A, B) that are not bridged. These interfaces have different IP adresses (e.g. 192.168.1.1, 10.0.0.1). These IP addresses are in different subnets. I need to ...
0
votes
3answers
162 views

Default route and backup default route

I am dealing with the following topology: I have an "ISP ROUTER" connected via fastethernet to a MAIN router. "ISP ROUTER" is also connected via serial link to router CITY. CITY and MAIN are ...
3
votes
1answer
2k views

Windows Server 2008 R2 RAS VPN: access server on internal interface ip

short question: I'm usually a linux admin but need to setup a Win2k8 R2 server for a student project. The server is running as VM on a root server and has a public internet IP assigned. Additionally I ...
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0answers
12 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 ...
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votes
1answer
30 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
27 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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2answers
837 views

OpenVPN AS accept connections forwarded by NAT

We're running OpenVPN AS servers which are accessable and working over a public IP. But some of our clients aren't allowed to access our VPN server directly (because of some nasty firewall admin - ...
0
votes
2answers
57 views

routing for iax-protocol does not work on pfsense

I have problems with a pfsense-box routing iax-traffic (UDP port 4569). Our company has a central office and eight branch-offices. At the branch-offices we use pfsense as firewall and VPN endpoints ...
0
votes
1answer
28 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 ...
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1answer
994 views

Configuring Shorewall for routed OpenVPN

I have an Ubuntu server 14.04 machine that serves as a NAT router. The routing is achieved using Shorewall, mostly in line with this tutorial. The LAN has the subnet 10.0.0.0/24 On this machine I ...
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votes
4answers
3k views

Openvpn, forward packets very slowly

I rebooted my server, and an odd issue just came out. I am running on ArchLinux, the clients are Ubuntu, Android and Mac. The problem is that accessing the internet via the clients is slow, about ...
4
votes
1answer
4k views

Routing between two routers with static routes

I have a Draytek 3200 router and a pfsense rackmount router that I am trying to get to route to each other. I have a subnet on each router and a subnet for the link between, as shown here: As it ...
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1answer
47 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 ...
1
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1answer
75 views

VLAN routing to internet

I am currently setting up a new network and wanted to make sure it is being done in the best way as this is my first time working on a NetVanta 1234P and I am having issues with routing The client I ...
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0answers
16 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 ...
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0answers
9 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 : ...
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0answers
45 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 - ...
0
votes
1answer
2k views

strongswan VPN on OpenWrt

Hi I'm running Barrier Breaker version of OpenWRT and I have setup a VPN according to: http://wiki.openwrt.org/inbox/strongswan.howto I can connect to the VPN with my iPhone or Mac (to 10.10.1.0/24 ...
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2answers
970 views

Routing between multiple Mikrotik Firewalls

I have 2 Miktorik RouterBoards, an RB1100 and a RB951G. The 951G is acting as my Wireless box, and has Guest, Internal and Internet Only Wireless networks. The RB1100 has 3 WAN connections (2x150/10Mb ...
0
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2answers
2k views

cisco ip nat / port forwarding

I have been trying to get port forwarding working with a newly installed cisco router. I cannot seem to find where my fault is and have been looking for quite a while. The relevant section of my ...
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1answer
44 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 ...
18
votes
6answers
804 views

Why do Facebook users sometimes end up on my site when they enter www.facebook.com in their browser?

Every few weeks I get an email (usually a very unpleasant one) or sometimes even a phone call from a Facebook user who believes that I am "hacking" their internet. They come to this conclusion after ...
0
votes
1answer
39 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 ...
3
votes
1answer
627 views

blocked.domain.gstatic.com - Where could this blocking be?

As of this morning we were having serious issues (partially loaded site with no functionality) accessing Google Drive which we use heavily. Other websites seemed to work fine. This is happening on ALL ...
0
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0answers
29 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
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1answer
3k views

How to route traffic over an active VPN tunnel by domain name?

I set up a VPN tunnel to my web server targetting its FQDN: (e.g. my.server.com) using the built-in Windows 7 VPN feature and the built-in Windows 8 Routing and Remote Access (RRAS) VPN feature. How ...
3
votes
4answers
2k views

Are network and broadcast IPs supposed to respond?

I have a /24 network that is subnetted into a bunch of small chunks. I have recently gone into each router on the network (mostly Cisco) in order to document how this network had been divided. Now ...
0
votes
1answer
54 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 ...
3
votes
2answers
2k views

How to enable traceroute in linux machine

I'm working on something in the transport layer and after i ran our custom policies for securing the policies i'm not able to do traceroute from the linux machine. root@keystone-evm:~# iptables -L ...
0
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0answers
24 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 ...
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0answers
34 views

Can not ping host on different network from router

I am unable to ping an address (205.134.241.75) from any machine on my network. I also cannot ping from the Router/gateway of this network. I can ping this location from any other network i have ...
1
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0answers
15 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 ...
4
votes
1answer
139 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
1answer
28 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 ...
2
votes
1answer
2k views

Fortigate VPN Routing issue

I have 200B Fortigate unit with 2 internet WAN connections. I also have a remote site which I'm connected to via IPSEC VPN through WAN1. This site has only one GW IP address. I'd also like to setup a ...
0
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0answers
113 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 ...
1
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1answer
830 views

OpenVPN host cannot access client LAN

I have an OpenVPN server, call it vpn-server, with a LAN 192.168.3.0/24 behind it. The client, vpn-client, also has a LAN behind it, 10.4.0.0/24. Machines on 192.168.3.0/24 can access 10.4.0.0/24 ...
0
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2answers
63 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 ...