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

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2
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0answers
28 views

Cisco Switch Routing performance monitoring

It is quite a question for me: I have Cisco Catalyst 2960S switch which is nice hardware even despite its age and EOL. I'd like to set it as small router between several networks within a remote ...
0
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0answers
155 views

Routing host traffic through Linux KVM (pfSense) router

I have a pfSense virtual machine running on a CentOS 7 host. The host has 2 network adapters, enp1s0 and enp3s0. enp3s0 is connected to a bridge br1. My pfSense virtual machine is also connected to ...
0
votes
1answer
137 views

Load balancing between two (or more) GRE tunnels

I have a hosted service (think zScaler™) that is having me send my traffic to it via GRE tunnels. I am given two appliances and want to load balance my traffic between the two tunnels. I could ...
0
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0answers
16 views

How to implement user-based routing for a mobile app

Here I have an interesting case I recently knew about. Let's say a small software shop creates mobile and web apps that make requests to a web service. The software is sold to single users and also to ...
0
votes
1answer
45 views

Static routing between LAN, IPSec and VPN

I got the following network setup: LAN: 10.10.2.0/24 -> IPSec -> 10.10.1.0/24 (VPN Server addr: 10.10.1.5/24) VPN: 10.10.3.0/24 IPSec connection is transparent Users between 10.10.1.0/24 and 10....
0
votes
2answers
65 views

Create smaller subnets from large subnet

My network is 10.10.0.0/16. I would like to break this up into /24s. My environment: I use /etc/hosts with dnsmasq for DNS and isc-dhcp-server for DHCP on an Ubuntu 14.04 server (gateway, router) ...
1
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0answers
76 views

VRF-like multiple routing tables on Windows

Does modern Windows kernel support some kind of VRF-like (or Linux network namespaces) multiple routing tables? I am considering a Windows server with 5 NICs. Every NIC attached to its own VRF ...
0
votes
2answers
71 views

Iptables forwarding with single interface

Is it possible to use Iptables to forward all traffic going to certain network to given ip address? I have Ubuntu server to act as router in network 192.168.1.0/24. Its IP is 192.168.1.254. (This "...
0
votes
1answer
18 views

Reliable UK/EU ICMP Targets for Periodic Routing/Connectivity Tests?

I need to test routing between my United States datacenters and United Kingdom and Mainland Europe ISPs. This is used to distinguish between general transcontinental routing issues and specific ...
0
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0answers
91 views

ASA 5510 Inter-Vlan routing issues

and thank you in advance for your help. I am having an issue where we are migrating from an ASA 5505 to an ASA 5510 and the software versions are quite different as well so they handle VLANs ...
1
vote
1answer
32 views

Linux: NAT from lan to a bridge results in erroneous nat between bridge components. How to fix?

Consider a machine with 3 NIC's. Two bridges are active; from eth1 to a vlan on eth0 and from eth3 to another vlan on eth0. Interfaces: auto lo iface lo inet loopback auto eth0 allow-hotplug eth0 ...
1
vote
1answer
79 views

Replace client switches with Netgear to match core or instead mix/match Cisco?

We are looking for how we can have a more reliable, simpler network. How can we keep out administrative burden low, and work smarter not harder when it comes to our infrastructure? Background: We ...
0
votes
1answer
510 views

The route addition failed: The parameter is incorrect

How can I null route a IP range? I get a parameter is incorrect error. route -p ADD 65.55.223.0-65.55.223.255 MASK 255.255.255.255 0.0.0.0 The route addition failed: The parameter is incorrect.
1
vote
0answers
36 views

OpenVPN Tunnel not working for subnets after some time

okay this sounds weird, I have one OpenVPN Server with 2 clients, 1 client works fine, the second one drops out after about 1 day. The server is 10.7.2.1, the client 1 10.7.2.2 (not working) and ...
0
votes
0answers
72 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
62 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
97 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 ISP-...
0
votes
0answers
29 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 client1---...
3
votes
1answer
227 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
213 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): SiteA-...
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
22 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
29 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
453 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
27 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
25 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
27 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
91 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 ...
1
vote
0answers
26 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
45 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
47 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
52 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
180 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
114 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 ...
2
votes
1answer
646 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
52 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
37 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 192.168.1.0/...
0
votes
0answers
28 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
75 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
87 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) ...
30
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
47 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
144 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
195 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
242 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
80 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
74 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
162 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
117 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 ...