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

learn more… | top users | synonyms

0
votes
0answers
42 views

How to set up routes and rules at Debian gateway to bypass VPN for certain hosts?

I built my own router running Debian 7, having two NICs: Internal ethernet, eth0: 192.168.42.0/24 External link to VDSL modem, eth1: 10.42.42.42/8 (address arbitrary, just used for PPPoE). I have ...
2
votes
0answers
37 views

Route single IPv6 address using router advertisement

I have a server in my local network that connects to an external VPN server and gets assigned the public IP address 2a02:c200:1:10:3:0:4315:2. Currently, when other computers in my local network ...
1
vote
0answers
27 views

RRAS IKEv2 Behind Router

I have an installation of Server 2012 R2 running that I need to deploy an IKEv2 VPN on. It's my way of accessing files at my office. The current setup involves a NAT Router (Just a standard ...
0
votes
0answers
18 views

VPC router does not route traffic to CSR

I am trying to configure VPC Gateway Redundancy with Cisco Cloud Services Router (CSR). http://www.cisco.com/c/en/us/td/docs/solutions/Hybrid_Cloud/Intercloud/CSR/AWS/CSRAWS/CSRAWS_4.html ...
2
votes
1answer
85 views

Logging NAT mappings on a Mikrotik router

I am looking for suggestions on how to configure a Mikrotik router to log NAT session setup and ideally teardown. However, setup only is sufficient for my immediate needs. I found a method to log ...
1
vote
1answer
37 views

ipsec/strongswan - how to use remote router as local gateway using the route command

Ok, this should be an easy one, but its driving me nuts. Scenario: Site A (San Francisco) Site B (Colombia) Both sites are connected successfully via IPSec (openswan, debian 8): ...
0
votes
0answers
13 views

Using DNAT with IPtables

I am trying to figure out a DNAT issue and I am hoping I can get a hand. Basically I have a OpenVZ box that connects to my LAN via the SoftEther Client. What I am trying to accomplish is a way to ...
1
vote
0answers
16 views

Losing connection to devices over the weekend

We have a networking scheme such as: 10.1.0.0/16 10.2.0.0/16 10.3.0.0/16 Each network is associated with a switch. Each switch connects to a layer 3 core switch that also acts as our router. We ...
0
votes
0answers
20 views

Is there a way to get the KVM Guest using alias interfaces to communicate with one another?

I've done lots of reading and it seems I have misconfigured my KVM Server. I would mess with the networking to get it to work but everytime I have, my company had to send somebody over while I try to ...
-1
votes
2answers
68 views

How to forward ipv4 broadcast packets between 2 computers on 2 different subnets?

I use my linux server as a primitive router. Currently I have it able to use masquerading to talk to the outside world (using a fixed IP), but about a year or two ago, I upgraded the link between my ...
0
votes
0answers
14 views

Not able to block site on pfsense firewall with squid+squidgaurd

Currently running pfsense latest version and set the transparent proxy using squid with squidgaurd for filter but https is not enable because this feature not work well. So that I want to block sites ...
1
vote
0answers
21 views

openvp client “spoofing” server with IPv6

An openvpn client (windows 64 bit -presumable windows 8-) is connecting my OpenVPN server normally. After connecting, it is routing all it's vpn related traffic through the vpn, natting (seems to be ...
0
votes
1answer
21 views

Load-balance via netfilter

In iptables I can mark some packets(one of four, ie) in preroute and redirect after only marked packets. Is way to load-balance traffic via netfilter tables?
0
votes
2answers
36 views

How can I DNAT a packet coming through a bridge back to its source with iptables? [duplicate]

I have a host1 that has a WAN interface eth0 (1.2.3.4) and a LAN interface eth1 (10.41.82.1). Inside the LAN is a host2 with the IP address 10.41.82.2. Incoming connections to 1.2.3.4:22 are ...
0
votes
0answers
14 views

Routing Traffic Through from VPN Client to Switch Network

Network Diagram I have two computers, Foo and Bar, connected to an OpenVPN server on Amazon EC2. Both the computers are connected to the Internet via Wi-Fi. The VPN IP addresses are on 13.8.0.*. ...
0
votes
1answer
23 views

How to route all internet requests to a local pc

I have a friend who works in a small office with ~10 computers + 4 servers. Local service provider told him that there will be a planned maintenance and they will have ~2-3 days of internet downtime. ...
0
votes
0answers
24 views

Geoserver (a java based webapp) returns 404 for some clients after a bit of use. Rebooting the Ubuntu instance temporarily fixes it

Geoserver returns 404 for some clients after a bit of use. Rebooting the Ubuntu instance temporarily fixes it. It seems to happen to clients of mine on xfinity more than others. The service will ...
0
votes
0answers
43 views

Migrating from Static Routes to BGP:: now TRACERT/PING works but Windows CIFS or HTTP do not

When we switch from a static routed private non-BGP circuit to a BGP private circuit linking two offices, Windows shares and HTTP browsing of internal machines across offices fails with timeouts. ...
0
votes
0answers
15 views

VPN and bad routing

I have a service listening on port 1000 UDP. This service receives packets from remote devices and responds to them. The IP from which the service responds must be the static IP I have assigned. Also ...
1
vote
1answer
37 views

OpenVPN server sending bogus default gateway information to client?

Though the VPN client successfully connects to the OpenVPN server, it seems to be setting an incorrect and bogus gateway no matter what permutations of push "redirect-gateway local def1" and/or push ...
5
votes
3answers
96 views

How does a router on the Internet know where to send a packet to next to get it towards its destination IP address? [closed]

I've been doing small-time freelance IT work (among other things) for about the last decade now. I've set-up or rebuilt more local network arrangements than I can care to count, and more recently I've ...
1
vote
1answer
111 views

Add static route with Ansible

How do I add and delete routes in my route table with Ansible? I can't seem to find any network or system modules for this.
0
votes
0answers
26 views

Route VoIP traffic over VPN between Routerboards?

Context (the Why): We have a couple of remote offices in shared/coworking spaces across the country. We've had significant issues getting our VoIP phones to work with those internet connections ...
2
votes
1answer
36 views

routing two DCs using VPN

I have two remote servers that have their local LAN connected via a VPN. Some more details including routing tables here https://ghostbin.com/paste/6sv3w 192.168.1.1 is router1 with lan ...
0
votes
0answers
22 views

Debugging a routing issue

So I have a weird temporary configuration that we have in place for a migration to AWS. (retiring some old equipment) I need to pipe web traffic from our current IPs in one datacenter to new ones in ...
0
votes
1answer
33 views

I FUBAR'd the IP, subnet, and VLAN settings. Now how to access managed switch?

I have a Dell powerconnect 2748. I think I have done messed it up though when setting it up because so far I have not been able to access the webconfig of the switch after I changed some settings I ...
0
votes
1answer
32 views

Assign WAN IP on internal NAT network

I have a static WAN IP address (in the example 77.88.99.166) that is provided by a DSL modem that also has a static IP address (77.88.99.165). The modem interfaces with a firewall/NAT router (green) ...
31
votes
2answers
2k views

Does adjusting a domain name's TTL actually matter?

I'm aware that tomorrow the public IP address of one of our production servers is going to be changed. The TTL on that A record is currently set to 3 hours. Will adjusting the TTL on that A record ...
0
votes
2answers
31 views

How to route requests through router based on domain names?

Assuming a setup as seen below, is it possible to route requests for e.g. subdomain1.domain.com to Server 1, subdomain2.domain.com to Server 2, another seconddomain.com to Server 2 etc. without ...
0
votes
1answer
52 views

How to set route table priority on OS X

Is it possible to set route table priority or metric? On Ubuntu I can run following commands to achieve what I want, but I can't find alternative for OS X sudo ip rule add from all lookup ...
2
votes
2answers
158 views

Layer 3 routing based on HTTP packet content

I'm running a HTTP proxy service and want to route traffic to various Layer 3 TUNs based on the contents of HTTP packets (e.g. HTTP headers). I'm using BSD and Linux to do this but it doesn't look ...
0
votes
0answers
77 views

How to redirect VPN traffic on OS X

I have following problem: I need to connect to VPN and access specific resources (ip addresses). When I connect to VPN all network traffic goes through VPN but in fact I need only specific ...
1
vote
1answer
55 views

Redirect one public IP to another public IP, different subnets and servers

That's my first question here so I hope I'll structure it right. Since it is a case for a friend, I'll appreciate guideness for a proper setup because I won't be able to access the environment. In ...
0
votes
1answer
35 views

Route Internet traffic to Azure site-to-site VPN tunnel on Sonicwall TZ205

I have configured Sonicwall TZ205 a Route-Based VPN which connect to a dynamic gateway on Windows Azure VNet. The site-to-site VPN connection is established successfully. The machines in on-premise ...
2
votes
1answer
55 views

Multiple default IPv6 gateways

Why is not possible to have multiple default IPv6s gateways configured? On Linux I'm not able to execute two "ip -6 route add default via [gw_ip]", while I'm able to do so with IPv4.
1
vote
0answers
71 views

Routing with Two Subnets - Azure VPN to RRAS (inside WRT1900AC Network)

In my network I have a Linksys WRT1900AC Router and a Microsoft RRAS VPN Server. The local LAN address is 10.10.1.0/24. In Azure, I have a Network that has a VPN connection to my RRAS VPN Server ...
1
vote
1answer
44 views

ARP Request Being Sent To Different Subnet From Ubuntu Linux

This question is very similar to this one: Linux is sending ARP requests to hosts in other subnets? Main problem - Ubuntu Linux server is sending ARP requests asking for a MAC address of a host on a ...
2
votes
0answers
63 views

Website inaccessible until host is pinged from client (on a class A subnet)

There is this really weird issue on the internal network, this happens constantly to "random" machines. Machine (client) boots up, goes to ...
0
votes
0answers
14 views

Iptables vm no outbound connections

I'm currently running Proxmox with a couple of vms. Unfortunatly i only got 1 public ip so i tried to work with nat. Problem is, i can't get outbound connection from my vms. Inbount connections to the ...
0
votes
1answer
183 views

MikroTik Configuration - Add a Public Wireless Router (internet only) to Office LAN

Goal Provide internet access for employees' personal devices without providing access to the internal network. Equipment Netgear WNDR4500v2: Wireless router intended for the guest network (has ...
0
votes
0answers
25 views

How to alias default gateway IP address

The problem is the following: I have got two dedicated servers at OVH. I have got few virtual servers (KVM+libvirt) and I want to migrate them between two hosts. I already managed to make live ...
0
votes
0answers
21 views

OpenWRT reroute all router traffic through a Client

I have an OpenWRT router (192.168.1.1) with various wired and wireless clients (192.168.1.x). One of the clients is a Suricata Sensor (192.168.1.100) with only one, 1000MBbit NIC. I want to ...
0
votes
0answers
52 views

Server 2008 R2 and RRAS

Good Day, Hope someone can help. I am currently working for a private educational institute building and managing a network. I have had to fix quite a bit of this network to get everything to where ...
-2
votes
1answer
55 views

Can't reach any IP outside of local network on Linux

I am trying to install a Linux distribution while inside an enterprise network. From my Windows installation, everything is detected out of the box. It seems to be the case on Linux as well: I have a ...
1
vote
0answers
36 views

ARP issuse in SUSE Linux

I am dealing with a very strange problem. I have a VM running SLES 11 SP4 in VMware Environment. The machine has two NIC. All of a sudden the second NIC stopped working. It's not even pinging the ...
0
votes
1answer
78 views

Routing all traffic from a client with changing local subnet over VPN

I have a simple mesh VPN (realized with Tinc) which contains my personal laptop and a VPS with a public IP. Let's say that the server's public IP is 1.2.3.4. The private address of the laptop is ...
1
vote
1answer
53 views

multiple default routes with iproutes2

I am very confused by the semantics of ip rules when it comes to the default route. Sometimes, I can have multiple default routes using different gateways: # ip route default via 10.0.0.4 dev eth0 ...
0
votes
1answer
19 views

AWS Connecting 2 regions

I've seen ways of connecting 2 regions to be a private network using AMI's but is there not a way to do this via VPC or DirectConnect. At the minute we have: eu-west-1 (11 servers) on ...
0
votes
0answers
17 views

squid+squidgaurd not working in bridge mode in pfsense

I have installed pfsense on bridge mode and without squid it's working but if i enable to squid and squidgaurd then internet is not working. i have setup as below. internet--netgear-------WAN ...
3
votes
1answer
112 views

ssh on Ubuntu fails after first time : Asymmetric routes, SSH connection fails to properly establish

I have been baffled by this problem... I have an exs host on subnet 10.128.0.1 and guests on 10.128.20.1 subnet. I have another box on 10.128.0.1 subnet with vms on 10.129.18.1 ... Router is simple ...