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

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OpenVPN Connecting Tunnels

I am struggling with a specific OpenVPN scenario for a few months now. Researching on Google, reading on Serverfault, browsing Blogs and other forums, messing with my config time and time again. I am ...
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18 views

Openstack instances, routing, packets not delivered for SPECIFIC services

I am taking over management of an existing openstack system at work and I have only a little prior experience with openstack. I have about 8 instances running and all of them appear to function ...
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1answer
37 views

Two NIC (eth0,eth1), two global IP on same subnet. Became unreachable to IP on eth1 after reboot

I configured a CentOS 6.5 virtual server and deployed it to a remote VMware vSphere environment. We needed two IP address, so I added a virtual NIC and assigned a second IP on eth1. I didn't ...
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1answer
25 views

Force all traffic from servers on the same bridge to pass through router interface

I have a bridge with all hosts from the 192.168.5.0/24 network connected to it.They all connect to this bridge via a secondary interface eth1. I have a router which connects this bridge to others on ...
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2answers
26 views

Firewall/Packet Sniffer - forward HTTP requests to a different address

I have a particularly "hacky" question/solution and looking for some honest feedback. In an enterprise system there are a number of requests that are destined for www.sometargeturl.com. These need ...
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21 views

Can I route traffic destined for a local interface out another interface?

I'm trying to set up a testbench for a transparent device (called TD from now on). The goal is to make sure it forwards and logs correctly. I need to use just 1 machine + the TD in the test bench. ...
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21 views

Multiple gateways with linux on same subnet using single NIC

I have the following configuration; Firewall 1 (site 1); x.x.x.x/26 subnet on external 10.0.0.0/8 on internal (internal IP 10.0.0.10) Firewall 2 (site 2); x.x.x.y/26 subnet on external 10.0.0.0/8 ...
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1answer
23 views

How to redirect custom urls to some local IPs with pfSense [on hold]

I'm using a pfSense router and I'm desperately trying to configure a custom url (eg: myurl.ext) that should be mapped by pfSense to a local server (eg: 192.168.0.x). Like I do with my /etc/hosts and ...
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1answer
30 views

Port based routing on ubuntu

My situation: A ubuntu server is part of a LAN with 2 gateways. The one offers high speed with high latency. The other low speed with low latency. My server usually uses GW1 for all traffic (because ...
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2answers
33 views

Aws vpc default route table in CloudFormation

Am I missing something but is there no way to add a route via CloudFormation to the default route table that comes provisioned with a VPC?
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22 views

how to configure redistribution from static routing protocol to OSPF,EIGRP,RIP v2? [closed]

![enter image description here][1]in cisco packet tracer i have configured redistribution on back bone router of Ripv2 to OSPF,EIGRP,Static and from OSPF to EIGRP,RIPV2,Static . I got stuck in how to ...
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13 views

ip routing on centos [migrated]

My server has two network interfaces. I set ip address as 10.254.1.5/8 and 172.16.20.40/8 and default gateway 10.254.1.1/8. 172.16.0.0 network between the two devices. This network is not attached ...
3
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1answer
38 views

Windows server 2012 ignores static routing

BIG UPDATE: I was blind I see now that route 172.17.50.1 has netmask 255.255.255.255 and so it point to single host! But now I cannot understand how can I ping 172.17.50.10 because there is not route ...
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1answer
30 views

Forward all network packets from server A to server B (WAN) Ubuntu

I currently run a game server on a VPS and will shortly be moving VPS provider. To make the migration easier on the players I would like players to be able to use the original IP for a short while by ...
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2answers
36 views

Can't access local web server using remote ip from within LAN

Since I've change my ISP, the current router (ADB P-RG A4202N) won't let me access my web server from within my local network using my remote IP or no-ip host - it redirects me to the router config ...
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1answer
34 views

Route IP to OpenVPN client

I have to external IPv4-IPs at my VPS. I want to route one to a VPN client, OpenVPN (tun). Only one VPN-Client should use the VPN, and I want to route all traffic to my second external IP to this VPN ...
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0answers
16 views

Allow PPTPD Clients to Communicate [migrated]

Ive set up a PPTPD VPN server on an Ubuntu 12.04 Machine. I have 3 machines connected to it, 2 of which are on the same network and one that is on a separate network. All 3 are on the VPN, and can ...
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26 views

Routing through SonicWALL SSL-VPN and Cisco L3 Switch

In the image above, we use the SonicWALL NSA 3500 at our gateway and handle VPN with its SSL-VPN. Our Layer 3 Cisco switch is our core network switch and handles about a dozen VLANs. Most VLANs ...
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2answers
55 views

Spanning Tree Necessary With 2 Stacked Dell Managed Switches?

I have a PowerConnect 6248 and 6224P stacked with the 6248 acting as the managing switch. They're connected using the 48Gbps stacking module with 2 cables running between the switches. Do I need to ...
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32 views

Tracert of a spoofed IP results in Infinite Loop

Our firewall picked up a spoofed IP address that caught my attention. When I did a tracert to the spoofed IP address I get what I think is an odd response. Tracing route to 192.168.1.7 1 1 ms ...
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48 views

Is it possible two have two static routes that are each going to a different remote site from the host site and have back up routes too?

Is it possible to use static routes to communicate point to point where the host talks to two different networks simultaneously? The remote sites do not talk to each other, just host to remote and ...
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23 views

Route multiple domains to one server keeping original domain name

I am trying to get some idea of if the following is possible so I’m reaching out to you guys to see if you have any ideas. I’m not super experienced in this area so bear with me as I try to explain. ...
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27 views

Unable to monitor Cisco route tables with SolarWinds

I recently switched from scanning a linux-router based network hosted on CORE emulation software, to scanning Cisco IOS routers hosted on a GNS3 emulation with SolarWinds. Everything seems the same, ...
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1answer
31 views

Determine cause of connection refused on surveillance video unit

We have 3 similar surveillance video units. Each has a server that should be available on ports 80 and 443. One unit has suddenly become unavailable on port 80, and I'm working to determine what could ...
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56 views

Proper way of setting gateway outside of subnet on FreeBSD?

I have a VPS running FreeBSD 10 and it is located in OVH's BHS datacenter. The gateway for my VPS is not in the same subnet as my IP address and when I went to set the gateway the usually way, it ...
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1answer
149 views

One IP for whole LAN, provide access to local server outside the LAN [closed]

I have a LAN with multiple PCs and some servers. I would like to provide access to one of the servers from outside the LAN. The problem for me is I have one IP address for the whole LAN. The server is ...
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0answers
30 views

Pinging to google.com from a particular interface

I am connected to the internet via wlan0(wifi) and also have an ethernet port(not connected to the internet). I am looking for some iptables rule / route addition, which will let me do a ping via eth1 ...
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1answer
49 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 ...
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1answer
77 views

DHCP For Voice And Data VLANs With Router-on-a-Stick

Background: I have 2 Powerconnect 62xx switches stacked with a Watchguard XTM-26 between them and the outside world. Currently all devices connected to the switch are in the same vlan and the ...
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22 views

Adding ip routes for the additional WAN IPs on Cisco IOS? [duplicate]

I have a Cisco 800 series router. FastEthernet0 uses switchport access vlan 100, has one webserver on 10.0.0.2 FastEthernet1 uses switchport access vlan 101, has one PC on 10.0.1.2 FastEthernet4 ...
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31 views

Linux router cache shows very high RTT (30 sec)

one IP from the route cache is exceptional high (>30sec), the others are below 100ms. # ip -s -o r s c |grep 10.20.61.12 local 10.20.55.98 from 10.20.61.12 dev lo src 10.20.55.98 \ cache ...
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2answers
133 views

How to route public ipv6 address to private lxc container address?

I have a pool of public ipv6 address I want to use to expose lxc containers. On the host machine I created a macvlan interface eth0-macvlan and bound a public address to it 2600:3c01:e000:83::1/64. I ...
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1answer
140 views

pfSense routing between subnets behind OPT1 and LAN

pfSense short config summary: WAN interface is on a registered Internet block of addresses connected to ISP via fibre LAN interface has IP address 10.200.1.3/24 OPT1 interface has IP address ...
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1answer
43 views

Worldwide IP Latency [closed]

I want to create a simulation of the protocol MIPv6 (http://www.ietf.org/rfc/rfc3775.txt), for this reason I need information about latency, jitter and round-trip time. My first guess is install ...
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2answers
31 views

Manually adding a destination to the routing table in ubuntu

The default routing is through a tunneled (VPN) gateway. I have a destination (my ISP user-login server) to which I can't connect via a tunnel but only through the eth0 interface with the ISP assigned ...
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1answer
99 views

access same subnet on different interfaces

I have a router with external (WAN connection) subnet 192.168.1.0/24 and also on same router a tunnel to a remote location which have the exact same subnet (192.168.1.0/24), and i need from my LAN to ...
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34 views

FTP Traffic routing through NAT prevents me from logging in

I need to send all FTP traffic to a particular server from a NAT. Server A connects via FTP to an IP which is routed to the NAT and then over a VPN. That traffic then comes back and gets routed from ...
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2answers
28 views

Multicasting on server with bridged interfaces

Network: 10.1.1.2 and 10.1.1.3 in same network. 10.1.1.2 has VPN server running in bridged mode. 10.1.1.4 - ip address of VPN client. All machines have Debian 6 installed. I'm trying to test ...
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2answers
116 views

Can a Windows DHCP server serve a scope that it is not a part of?

The situation I have a windows SBS 2008 box running as DC/DNS/DHCP/Exchange/File Server to a network on 192.168.1.0/24. Suffice it to say that the IP of the SBS box is immutable. At some point in the ...
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28 views

For a typical broadband ISP, are nodes on the same subnet routed together or are they bridged?

For a typical broadband ISP, are nodes on the same subnet routed together or are they bridged? In other words, what kind of path will a packet take when going from one node on a subnet to another for ...
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0answers
25 views

Will iBGP fix this routing scenario?

I have to firewalls running for a cloud service in a data centre providing HA internet for currently around 40 machines. Each machine is a Linux based router and has it's own 10Gbit feed from ...
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2answers
162 views

How can I configure access to pfSense on Xen

I have a new Xen installation on which I want to run virtual machines. My hoster provided me two separate IPs in different subnets, say x.x.x.x and y.y.y.y. I want to set up pfSense on Xen and ...
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31 views

Benchmark software IP router performance using single Linux device

I'm testing routing performance using software Linux router (in-kernel). My usual test setup has 2 additional PCs: one PC is packet sender (packet generator) and other PC is receiver. There is ...
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61 views

Routing on CentOS with multiple subnets

I have a server with 2 VLANs on a NIC, configured as follows: eth0 Link encap:Ethernet inet addr:192.168.10.20 Bcast:192.168.10.255 Mask:255.255.255.0 eth0.10 Link encap:Ethernet inet ...
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53 views

Some client in my network, sometimes can't ping Gateway and DNS server

I've a local network with 100-150 clients, one Core Switch and 10-12 switch that Switchs are connected to the Core Switch and clients are connected to switchs. In my network sometime some clients ...
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1answer
16 views

VSFTPD : FTP can't resolve routing

I'm setting up a server but I can't get FTP to work properly. I use CentOS with vsftpd as ftp server. I'm working on a virtual server and there seems to be an error with the routing. When trying to ...
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2answers
44 views

Accessing Server hosted on USB remotely

I'm running a program called VMlite VNC Server for android on a set of Phones connected via USB to a windows XP machine. Due to the way we're utilising the phones, we need them unrooted and with Wifi ...
0
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1answer
47 views

How is my GRE-Tunneled packet being routed? [closed]

I'm trying to figure out exactly what is happening when I create a GRE tunnel. My network looks like this (-> means directly connected): Computer A (eth0: 10.0.1.1) -> (eth0: 10.0.1.2) Router B ...
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12 views

Email duplicated from Barracuda Cloud layer?

Incoming email to our domain first goes to the Barracuda Cloud Protection Layer before being passed to our local Barracuda 300 antispam appliance. It then goes to our email server (CommuniGate). ...
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151 views

Routing from mikrotik two IP addresses to same gateway

I have 2 static addreses (a.b.c.72/24 and a.b.c.128/24) on gateway1 and gateway2 interfaces. ISP have one gateway a.b.c.1 . I can use a.b.c.72 only on gateway1, a.b.c.128 only on gateway2. How to ...