Questions tagged [routing]

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

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VM NAT rules block guest VPN traffic when VPN Server relayed over host

I'm trying to run a vpn client inside a vmware NAT guest which connects to a vpn server over a tunnel port listening on my host (VMnet8 192.168.246.1:1194). Once openvpn applies its routes, the whole ...
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What does default gateway from ipconfig on Windows means?

What does Default gateway properties of every network adapter from ipconfig /all command's output means? As far as I understand, default gateway is the next-hop IP that is assigned to address 0.0.0.0 ...
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Route Domain through vpn doesn't work

I have an openvpn server at home. I want to route a domain over my vpn. The domain has the same ip add. as the vpn server.(My home ip) When i add: route add 193.80.102.178 MASK 255.255.255.255 10.8.0....
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How to determine why via Starlink cannot access 67.208.88.200

I have recently obtained starlink and I have a purchased application roboform Roboform syncs passwords with the online site "online.roboform.com" but this does not work when connected via ...
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need to debug a wifi routing situation

I have a Movistar (spanish) router. I connect 3 items to it, using wifi, same SSID = "a22" a PC, ip = 192.168.1.54 a Raspberry, ip = 192.168.1.200 a Frontius inverter, ip = 192.168.1.78 ...
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Access devices on different subnet on another router - ER-X

Current Network Map My noob question is why any device on network 192.168.10.0/24 can ping any device on network 192.168.1.0/24 and the opposite doesn't work? I need to be able to connect to my ...
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Routing from OpenVPN client to main router: How?

My Pi/OpenVPN settings: IPv4 address for tun0: 10.8.0.1 IPv4 address for eth0: 192.168.222.20 IPv4 address of router: 192.168.222.1 The OpenVPN client (smartphone) needs to see the router for a ...
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How to have 'n' VPNs forever active?

This question is for a suggestion for a strategy to handle this situation: As developers or network managers, we need often to do activities on 2,3 or even 4 different hosts in 2,3,4 different VPNs at ...
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What network interface does a packet get to when it is routed to the IP of the machine itself?

I configured my machine like so: eth0 - 192.168.70.128/24, default gw 192.168.70.128 When trying to send an ICMP request, for example, such that it would route through the default gateway, I get an ...
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Why do traceroutes start with the same path?

I'm curious as to why all traceroutes start with the same path. For example, if I want to do a traceroute from my current location to www.google.com and another one to www.bbc.co.uk, the first few ...
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remotely access a machine connected to another Ubuntu machine

I have an Ubuntu machine with this configuration: I use Tailscale VPN to connect to this machine. the Ubuntu Tailscale ip is 100.98.89.67, and the Tailscale ip of my localhost is 100.84.15.59. The ...
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Troubleshooting AT&T Arris BGW210-700 gateway

I've read most of the other posts and numerous forum threads on this gateway and its associated issues, but while troubleshooting my in-law's network I've come across something that quite intrigued me....
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What is the purpose of ethernet ports on a business router or home router?

In some research I did on the internet, I found the information that the ethernet ports of a router are used to create different networks, this can be done by connecting switches to each ethernet port ...
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OpenVPN: route to the same domain where the server is located

Domain mydomain.com is defined in Windows' hosts file, OpenVPN uses it's IP address. So, when I go to mydomain.com in browser, my setup doesn't use DNS resolving (I have to explicitly connect to VPN ...
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route is listed without mask

On Ubuntu 18.04 when I list my routes I get the following output: root@ubuntu1804:~# ip route ls default via 192.168.122.1 dev ens3 proto dhcp src 192.168.122.236 metric 100 192.168.122.0/24 dev ens3 ...
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How to pass traffic through other Interfaces

I have total 4 Interfaces on my VM where enp0s3 is the primary Interface and others are the secondary Interfaces ip a output [root@vm]# ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue ...
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How to add ipv6 static route?

I'm new to IPv6, this is my home network +------------------------------------------+ | ...
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How to forward openvpn/wireguard to another wirdguard interface without modifying global route table?

I have one wireguard interface wg_vpn, but I don't want it to be global, so I add the line "Table = off" to the wg_vpn.conf to prevent wg-quick to modify the route table. I also have an ...
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Strongswan Site-to-site VPN - single NIC behind NAT

Please bear with me. I have really tried to experiment, search for answers and read documentation. Site to site VPN, one side behind NAT. Symptom: VPN GW's can connect and ping each other internal IP. ...
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Proxmox: Routing traffic between VPN and guest network

I have a Proxmox setup on an internal corporate network that hosts multiple VMs. Users connect to the network via a VPN connection that allows access to a gateway machine running Windows and from ...
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Can I have one gateway for each subnet I want to reach?

I've seen multiple questions here and articles elsewhere about this. I get that a subnet can only have one gateway and I get why - devices wouldn't know whether to use the first or second to get to ...
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When I set up port forwarding on my home router, why does connecting to a local server via the public IP show the router's address as the client IP?

I'm trying to understand how NAT works on a basic level within my home network (just a consumer Google Fiber router with no custom configuration other than the port forwarding I'm about to describe). ...
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Can not ping other subnet in network

Well this is my network daigram I have some wifi devices that connect to my wifi access point, I ran a DHCP server on ether4 and so all of wifi devices are in subnet 192.168.4.0/24 My PC is connected ...
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Persistent routes doesn't work

My pc has two network interfaces as followings. Ethernet adapter VLAN513: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : D-Link DGE-528T Gigabit Ethernet Adapter ...
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OpenVPN can't resolve private domain with allow-pull-fqdn option

I'm using OpenVPN client with allow-pull-fqdn and route-nopull options to just route some domains through tunnel. It's working for public domains, but for local private domains it doesn't work. It ...
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Gateway address outside the subnet mask

my router (DHCP disabled) IP : 192.168.1.1 Subnet Mask: 255.255.255.0 PC network card conf. IP : 192.168.1.103 Subnet Mask : 255.255.255.240 Gateway addres : 192.168.1.1 I can ping the gateway ...
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2 routers same network but different subnet

am I a noob in networking, how could I implement the following diagram: network diagram I want to both routers access the internet, but the router 1 network must be separated from router 2 and vice ...
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vlan for ip cameras and nvr

I had an existing tcp/ip network setup and I added 4 ip cameras and an nvr to it. The traffic load went up and I had some performance issues especially to the routers. As a solution I thought to add ...
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How to route all traffic to my own application and then tunnel through OpenVPN?

I already know how to tunnel all traffic to my custom C-application. You basically just create a new tun-Interface and add a route. Okay. But I just can't comprehend the way how to route the tunneled ...
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Single IP left subnet and routing traffic through tunnel in strongswan

I must set up an ipsec tunnel to use an external service provided by another company (so I have no control on the other side and can't change anything there). Let's say that: 192.168.0.0/24 is my ...
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Is overrideing DNS entries in LAN a good idea?

I got a fairly simple setup which consists of 2 servers and couple of users. server #1, int -> server in my home LAN where my application lives, in this case it's nextcloud (with nginx web server, ...
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How to do "source-MAC based routing" with nftables

(This is a simplified version of this: Can Linux do "source MAC based routing?") I have an appliance that needs to route egress packets back to the MAC interface where the ingress packets ...
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Connect two networks by WAN port, not vpn

I got a job in a big company as IT manager. Because some problems in the past they had, I want to separate each sector with a different network. But I want to each computer from specific network see ...
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How to configure docker for windows to correctly route via cisco AnyConnect with split tunnels

I am running Docker Desktop 4.6.1 on Windows 10. I am connected to a vpn via Cisco AnyConnect 4.10.02086. AnyConnect has several secured routes defined, e.g. 10.1.160.0/24 Non-Secured routes is ...
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Can Linux do "source MAC based routing?"

I'm looking for a way in Linux to perform source-MAC based routing. My goal is to have a router with the following routing: echo 100 inbound >> /etc/iproute2/rt_tables ip rule add iif eth0 ...
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If the metric of a routing table destination is higher than another, can it connect through it, if the lower metric destination offers no connection?

When a host is unreachable via the route with the higher priority metric (lower value of metric), will the OS use the route with the lower priority metric without removing the high priority route from ...
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Get ssh access to the Host IP while VPN connection is established

I have my Raspberry PI connected to Internet with real IP address. The network topology is the following: Network scheme On the RPI Wireguard client is setup and traffic forwarded from VPN to ETH1 and ...
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Connecting all vpn clients into a single network

I have a Ubuntu server with IKEv2 VPN configured. I have 2 (will be more) Windows clients, that can connect to VPN. I want them all to be "bridged", like they are all physically connected to ...
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Why cannot veth-pair I created ping through each other

I created veth pair ip link add veth0 type veth peer name veth1 ip addr add 1.2.3.101/24 dev veth0 ip addr add 1.2.3.102/24 dev veth1 ip link set veth0 up ip link set veth1 up 485: veth1@veth0: <...
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Forward ICMP to a tun interface

I’m creating a ICMP over DNS program. Here is what works: I read tun0 interface, fragment and send to the server the ping (tunneling), process the ping on the server, get the answer and tunnel and ...
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prevent ssh connection being lost after connecting to vpn server on Azure ubuntu 20.04 vm

I've created an Ubuntu 20.04 scale set (2 vms) on Azure and access these vms via ssh from my laptop's shell. I want one of them to be connected to nordvpn (using nordvpn connect command, default is ...
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OSX Routing Between 2 NICs on 2 separate hosts

A little background: I am building a box that I can ship to a venue that has a Mac Mini and a Sony PTZ camera that connects directly to it via ethernet. I am using a secondary NIC to connect the ...
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Access across two local networks using a consumer grade WiFi Router

Background - Illustration - https://i.stack.imgur.com/DFSMh.png We have a embedded device(referred to as PC2 ahead), which is hosting a UI/webpage, in a Class C network(Network 2 in the diagram above)....
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OpenVPN: Only route a specific IP addresses through VPN doesn't work for some websites

I wrote route-nopull route myexternalip.com 255.255.255.255 in .ovpn config file as it is shown on many tutorials. And for myexternalip.com it works well, but for some other sites - does not. For ...
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Trying to prevent IPv6 leaks on OpenVPN server results in no internet access

I've had a working IPv4 OpenVPN server for some time now, and in order to stop IPv6 traffic on it I added an IPv6 pool to my server and pushed a route for the public IPv6 range: server-ipv6 2001:db8:0:...
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Wireguard (Client) not working with Windows IP forwarding turned on

I have an issue using WireGuard client on windows. When I'm trying to connect to WireGuard server, there are no pings, no domain resolves - nothing. WireGuard shows that I do send like a 1GB/sec of ...
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How to route to a MAC address on a specific interface on macOS?

I have a device with mac address a2:a0:f1:7c:7f:36 on interface en8: en8: flags=8b63<UP,BROADCAST,SMART,RUNNING,PROMISC,ALLMULTI,SIMPLEX,MULTICAST> mtu 1500 options=6467<RXCSUM,TXCSUM,...
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How to assign a Hyper-V VM to an alias IP set on the host NIC

I have spent weeks on this by now and can't figure it out... The problem I am renting a Win Server 2019 dedicated server with server4you and need to run Unix software on it as well. So I created a ...
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Raspberry pi as the default gateway in home network [closed]

First I will describe my current network topology, then describe what goal I want to achieve. Currently, my laptop is connected to a switch via ethernet cable, and the switch is connected via ethernet ...
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Why isnt my routing via Routing & Direct access working?

I tried to configure routing in Routing & Direct access in VMWare. It is not working, I want to ask why. The error is always : Destination host unreachable / Request timed out (for all paths when ...
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