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Questions tagged [ip-routing]

272 questions
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Linux IPTables / routing issue

EDIT 1/3/10 22:00 GMT - rewrote some of it after further investigation It has been a while since I looked at IPtables and I seem to be worse than before as I can not seem to get my webserver online. Below is my firewall rules on the gateway server…
Jon
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IPv4 -> IPv6 -- IPv6 -> IPv4 routing

I hope the is the right place to ask this question. I'm just looking for the correct name of the type of network routing I'm attempting to implement so I can learn and implement it. I'm using linux (Raspberry Pi3) that has the ethernet port and a…
Bill
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IP Binding Issue in using GRE Tunnel

I have a issue with tunneling and am having a hard time finding a solution. I have two servers, A: Host-Server being a sever with a single IP, and B: Main-Server being the server handling all our applications. I set up the GRE tunnel fine, but for…
NinjaDestroyer
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Port-Forwarding and Routing on Windows Server 2019

we run several virtualized servers (all Windows Server 2019) in a cloud environment. There is one server used as router (with a public IP and a privte IP 192.168.100.10) and two further servers have an IIS running. The port-forwarding on the router…
DPT-Schrauber2021
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Ubuntu 16.04 server loses default route on restart

One of my Ubuntu servers always loses its default route when restarted. I have a second server which has an almost identical set up which works fine. I am not sure when the problem started but it first became an issue when we started auto patching…
Russell Fulton
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Kubernetes: route outgoing UDP traffic through service

My question is about Kubernetes' internal traffic routing and probably about routing / NAT in general. Goal: I'm running a Wireguard service on Kubernetes and I'd like to route all outgoing traffic which has entered through Wireguard through another…
bob3000
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Dual Gateway Setup in Mikrotik

I'm new to Mikrotik environment, and I need some help for the following scenario: I have an ADSL router (main internet connection) with IP range of 192.168.1.0/24, connected to Ethernet 1 of my Mikrotik router (WAN Port) I have another ADSL router…
Aydinl60
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Linux IPv6 + Hurricane tunnel = no IPv6 traffic from gateway, internal network works fine

This is a head scratcher to me. Set up: Linux (openSUSE 15.1, kernel 4.12.14) run as a gateway on my local network. I have an IPv6 tunnel with Hurricane Electric (HE) that has been working just fine. Recently (for some definition of "recently" -- I…
Bruno da Costa
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Routing between two private subnets attached to a host

I have four linux hosts networked together on a private 172.16.x.x/16 network. One of these hosts, call it host 1, has two NIC interfaces, one on the 172 network, and a second NIC which is attached directly to a single device on a 192.168.40.0/24…
Ray Roberts
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OpenVPN server with 2 Public IP

This server has 2 IP addresses as follows. 11.22.22.44 : primary address & exit ip address 11.22.33.55 : secondary address, non-exit ip address, used for openvpn client to connect to i can ssh to either of the 2 IP addresses. i want OpenVPN…
DoitorDie
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Select next-hop based on source address

I'm trying to set up a Ubuntu-based gateway between clients and the core router, the ideal traffic flow should be: ClientGroup 1 (10.0.0.0/24) -> Ubuntu gateway (10.0.0.2) -> Core router (10.0.0.1) -> Internet ClientGroup 2 (10.0.1.0/24) -> Ubuntu…
GreenVine
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Forcing route to interface, no matter what

I've got 2 interfaces on my server (eno1 & eno2). Whenever any process try to reach an IP (lets say 183.182.99.1), I want the traffic to use the eno2 link. Here is my current routing table: default via 192.168.1.1 dev eno2 metric 90 default via…
Stopi
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No uidrange rule with IProute2

When I run "ip rule help" there is no uidrange option in the selection sectors. I also get an error when I try to add a uidrange rule. Iproute2: 4.9.0-1 Command: sudo ip rule add uidrange $uid-$uid table vpn Output: Error: argument "uidrange" is…
Vernox Vernax
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How to change Public Address of VPS with another IP Address

For a project, I need to make HTTP requests to an external service from a IP address geo-located on "NATION_2". Having an available VPS located in NATION_1, I proceeded to purchase a public IP address geo-located in the correct country. How can I…
Fede91
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Convert one interface to a tunneled interface

I have a server with 2 WAN interfaces, eth1 and eth2. Each one have one router connected which gives them these IPs: 192.168.3.101 and 192.168.1.101. The thing is that I want to completely avoid traffic through eth1 and instead create a tun0 which…
Jorge Fuentes González
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