Questions about using a router/networking, e.g. port forwarding, VPNs

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How does IPv4 subnetting work?

How does Subnetting Work, and How do you do it by hand or in your head? Can someone explain both conceptually and with several examples? Server Fault gets lots of subnetting homework questions, so we ...
0
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0answers
9 views

WatchGuard - T30-W - Route HTTP traffic through secondary IP address

I've got a WatchGuard T30-W firewall and with it a Trusted Interface (192.168.0.1/24), Optional Interface (172.16.0.1/24) and External Interface (123.123.123.120/29). With my service provider, I have ...
3
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1answer
32 views

Why am I having connection difficulties across two subnets?

I'm attempting to wirelessly connect my neighbor's home network with mine. We each have our own internet services and subnets which we want to preserve, but still be able to access services between ...
0
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1answer
40 views

Can't make static route and NAT work together

My home LAN is a rather standard 192.168.2.0/24 network with gateway on 192.168.2.1 and has DHCP on addresses from 100+ configured on an ASUS router (RT-AC66U). The WAN is configured via DHCP from ISP....
0
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1answer
28 views

Windows routing issue

I have two Windows boxes (Windows 10 and Windows 7). The first one named SERVER runs OpenVPN as server, the remote one named REMOTE runs the OpenVPN client and connects to the SERVER fine. Both have ...
3
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1answer
33 views

Route between two private networks

I have a two private networks (home: 192.168.1.0/24 and virtual: 10.10.0.0/24) which I like to connect and have them to be reachable in both ways. Network home is managed by my home router which is ...
1
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1answer
47 views

Rerouting network traffic to vpn

I have an ubuntu server as router. Now I would like to route all traffic from subnet 1 (192.168.1.0) through a vpn connection. This works only when i let the vpn server push the routes to my router ...
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2answers
22 views

Flushed my routing table and internet no longer works, how to repair

I was trying things with the routing table, wanted to delete a rule I just added and thought it was easy like with iptables and flushed the table. Now I no longer have a connection. When I ping ...
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3answers
20 views

Does it matter if I connect between my devices on LAN using their LAN IP addresses or the IP address visible to the internet?

At my home I have my desktop computer behind a router. There's a port forwarded by the router to the computer's ssh port. When I am using my laptop in the same LAN, I can either connect to my desktop ...
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1answer
27 views

How to use my windows 7 laptop as router?

I would like to route my mobile traffic through my laptop which its operating system is windows 7 professional. Now my laptop is connected to internet using LAN and is also connected to the access ...
0
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1answer
35 views

IP routing devices with security

I'm looking for a device that we can use to do routing between various IP ranges on our network, but offer us some security as to which devices can communicate where. Existing network has 2 major ...
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0answers
12 views

Route cloud services to VM on laptop via domain URL

I hope I explain the need properly and even more that there is a solution to it. What I am looking for is a way for cloud services to access my web server via a domain registration (not direct IP). ...
0
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1answer
40 views

How to route all traffic from one vm through other vm on OS X

Challenge: to get one Debian VM (Virtualbox) to route all its traffic through another Debian VM (Paralles), both hosted under OS X 10.11.5. I've tried for days, I hope you can help here. Schema: vm1 ...
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0answers
27 views

Route traffic of specific domain to different ip?

I am working on a project where my customer wants to redirect traffic going out to, let's say, www.google.com, to a localhost web server on Windows 10. So instead of configuring a dedicated server ...
0
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0answers
23 views

Do i have a routing loop with virtualbox?

I have a situation with VirtualBox where it starts eating 100% cpu at some point and would not stop. My guest OS (debian) is idle and not reporting any cpu usage, so i suspect there is something with ...
0
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0answers
12 views

How to use 2nd NIC for the non-default browser in Windows 7 and later? [duplicate]

I have a laptop, given to me by the workplace, running Win7 64 Bit Professional Version. It has a hard-wired NIC, which is connected to my network via docking station and it is my only network ...
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1answer
37 views

Low Throughput and Router Crash

Setup: packet generator (computer A) ——> cat 5 ——> Router (GB/s LAN port) ——> 2.4 Ghz network ——> wireshark (computer B) I’m using Ostinato for mac to generate the packets. I’m giving the packets a ...
1
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1answer
22 views

Connecting blackbox host to PAN

I got following scheme: /-----\ ------------- ( ISP ) +---------+ / \-----/ | 0 --/ +---------+ | gateway 1 ---------- ...
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2answers
22 views

Different OS's implementations of traceroute

Given that different operating systems may use different packet types (for example: UDP packets, TCP packets, ICMP echo requests), can I be certain that an active browser session will follow the same ...
0
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1answer
27 views

No internet during the VPN connection on Ubuntu 16.04

I have no access to internet after start up vpn conection. I'm able to ping google but nothing else. Before VPN connection: # ip route show default via 10.0.2.2 dev enp0s3 proto static metric 100 ...
1
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1answer
55 views

How do I manually add IP to my routing?

I need to add an IP to my routing. I'm connected to a lab with Openvpn. My routing looks like this now; Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use ...
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0answers
22 views

Every time I connect to a network, Windows adds a route. Can I control that?

I have a wired network via an Ethernet adapter built in to my motherboard. It has access to the Internet. This network is 192.168.197.0/24 I also have a wireless network that currently doesn't have ...
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1answer
14 views

how to set proxy in wifi router Or Packet Routing

Scenario Is 2 Nic In Ubuntu14.04 Server, one with D-Link Router and One Direct Line of ISP. Now I Want all Request Of Router On Server.Router Is In Bridge Mode For Avoid Nat.when i setup Proxy in ...
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0answers
8 views

server output bandwidth differs towards different locations

I have a VPS which has a 100 Mbps connection. My current connection is 50 Mbps to other sites, but with my vps I only get 2-3 Mbps, even though from other places the access is fast. What can cause ...
0
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1answer
37 views

What is “push route” used for in OpenVPN?

I have an OpenVPN server set up on my Raspberry Pi, when I installed it the guide I followed said to add a line like: push "route 192.168.1.0 255.255.255.0" so that the server would let the client ...
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0answers
43 views

Mikrotik and remote proxy

I have Mikrotik which servers as router for my network. I also have remote VPS on which I configured Squid (version 3.3.8) I need all web traffic from my network to pass via squid. This includes HTTPS ...
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0answers
26 views

Communication between IP ranges

I am trying to test some things for work and am looking for some assistance. We are currently running out of IP addresses on our 255.255.255.0 subnet. The boss was asking if we could do something ...
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0answers
31 views

IGMP Proxy on Mikrotik

I have both Internet cable and a separate IPTV cable provided by ISP. Those two, along with 3 other room Cat5e cables are connected to Mikrotik hAP ac router. I know that in order to get the IPTV to ...
0
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1answer
50 views

Two different Network interfaces simultaniously CentOS

I am going nuts since I have been trying to solve this for nearly a week now. Scenario: One Server with two different network devices. Each device is plugged into a different company subnet. eth0 ...
0
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1answer
33 views

Remote accessing router with static IP

I've got a server running on raspberry pi that is connected to the router. The router has static IP and the routing rule: "Route [static_pi]:22 to [raspberry_lan_ip]:[server_port]". Now I'm far from ...
3
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1answer
35 views

VPN connection problems regarding plex media server and voice over IP

I have a home server - running Debian Jessie and plex media server. My router (fritzbox) allows all smartphones in my LAN to receive incoming landline calls (due to a certain app). This part works ...
0
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1answer
11 views

Setting custom route to device in local network

I have a little problem with my local network. When laptop(marked by red arrow) tries to connect to my NAS(Zyxel NSA310) it sends file not by shortest possible route (via switch only), but instead its ...
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0answers
21 views

OpenWrt Configuring inter zone routing

In my LAN I've got two routers. Router A is a really shitty and dumb device that I have to use because of my ISP. Router B is an Archer C7 from TP-Link running OpenWrt. Currently router A has the ip ...
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0answers
21 views

Linux kernel ignoring ICMP redirect requests, but only sometimes

With tcpdump I can verify that ICMP redirect requests are honoured when using ping, but not when using ssh. Here is the setup: myhost connects to otherhost. otherhost has tcpdump running. It has a ...
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0answers
30 views

reroute my traffic to another adapter

My Internet access comes from my ethernet and I want to redirect it to a virtual adapter which is connected to a vpn server. I looked for answers and I'm now aware it has to do with the route rule but ...
0
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1answer
27 views

I want to install vpn server on windows/unix for internet access

I want to install vpn server on windows/unix whichever runs best to bypass country restrictions to access web sites. The main purpose is the divert my all internet traffic through connected vpn. I ...
2
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1answer
50 views

Can't make a route between two tp-link routers

I have a fiber connection and two router from TP-LINK. The media converter (ASKEY RTF700 model) connect to the WAN port on R600VPN, and I connect another CAT 5E on the LAN port to the WAN port on ...
0
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1answer
27 views

Automatic detection of default gateway is wrong

I'm running Debian Jessie on RPi3 (Raspbian). The network connection is on wlan0. Usually, after filling the wpa_supplicant.conf fields, rebooting the network services leads to a working Internet ...
0
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1answer
28 views

How route two subnets when they are connect to a same router?

I have a Router has 4 ethernet ports, eth0 to eth3, with OpenWRT inside and such configurations: Interface lan1 involves only eth0, IP address 10.10.0.1/16 Interface lan2 involves only eth1, IP ...
0
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1answer
29 views

Connect to DSL modem without using ethernet cable

I have a Dsl modem connecting to isp Inside it is a wireless linksys wrt router. my computer is a mac. at the moment to check the config of the dsl modem I have to use ethernet cable to switch port. I ...
1
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1answer
53 views

How do “huge routers” look like?

I am new to networking, I found out that I can use traceroute to see the routers that my packets travel through in order to get to their final destination. For example: In order to get to Google.com, ...
1
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1answer
22 views

access web server host on same server as openVPN

I have OpenVPN and Web server hosted on the same server. I know that I can access the server by using the tunnel's IP but i want to be able to access the web server (with virtual host enabled) by ...
0
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1answer
34 views

IP forwarding from one server through default route

I have a device (IP 10.110.1.3) with the following rule set up: $ ip route default via 10.110.1.4 dev wlan0 onlink I have ipv4 forwarding enabled on both machines. Both machines can talk to each ...
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0answers
74 views

Route Through Different Gateway Based on Source Address

I currently have two internet connections in my network, my default gateway at 192.168.1.1 and a 3G access point at 192.168.1.8. My OS X en0 has two IPs, 192.168.1.28 and 192.168.1.29. Currently ...
3
votes
1answer
36 views

Gateway settings on multiple interfaces

I have two devices (actually not PC). Device A is connected with external network, this IP is 192.168.1.2, I use this as gateway. Device B has two interfaces like below. Two interfaces use the same ...
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0answers
16 views

Share internet and network between two linksys ADSL Modem LAN to LAN

I have two Linksys modems that one of them are connected to internet ADSL (PPPoE) and want to connect another one to first one by LAN (LAN to LAN) in order gain internet access in far place. What I ...
2
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3answers
77 views

Is the MAC address needed outside of the LAN?

I am learning about MAC and IP addresses and why we need to have both of them and not just one. Say I have the following network: Say PC 1 wants to send a packet to the Web Server. Now I understand ...
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2answers
75 views

Is a Web Server also connected to a Switch?

Let's say that a computer inside of a LAN wants to request a webpage from a Web Server. I have drawn this scenario in the following image: So the request data will travel from the computer (for ...
0
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1answer
17 views

Configure traffic 2 NICs for different IP Ranges

I have two NICs in my PC. One is connected to home network which connects to the internet through ADSL. Second is connected directly to a 4G router of another ISP. My need is, I want to configure my ...
0
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0answers
18 views

MacBooks cannot ping gateway or internet, can communicate with LAN DNS and other LAN hosts

TL;DR: Problem MacBooks cannot ping gateway and several other hosts within netstat -nr output. LAN DNS is up and functioning properly. Problem Macbooks can access any service on most hosts in the ...