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A Quick Introduction to Linux Policy Routing


Subnet routers · Tailscale Docs

Connect to Tailscale as a subnet router. After the installation completes, start (or restart) Tailscale as a subnet router: Linux ...

how to avoid routing through local stack in Linux

Untested (should work, but I may have missed something):. Linux has several routing tables. Table local contains some routes that the kernel ...

How to use netplan to create two separate routing tables?

You can make source based routing for a given interface by adding routing-policy such that from: that interface's IP, use table: table you ...

Understanding modern Linux routing (and wg-quick) - Quan Nguyen

Routing policies ( ip rule ) · Priority: 0, Selector: match anything, Action: lookup routing table local (ID 255). · Priority: 32766, Selector: ...

Virtual Routing and Forwarding (VRF)

The VRF device combined with ip rules provides the ability to create virtual routing and forwarding domains (aka VRFs, VRF-lite to be specific) in the Linux ...

SR Linux routing functions - Nokia Documentation Center

Within a network instance, you can configure static routes. Each static route is associated with an IPv4 prefix or an IPv6 prefix, which represents the packet ...

Routing response packets from IP/32 based on incoming interface ...

This requires policy routing, because by default Linux will use only the default route with lowest metric from the main routing table.

large routing tables - LinuxQuestions.org

Put the fastest one first. Time to start adding -j LOG rules in ... linux kernel: large routing tables, dunkyb, Linux - Software, 0, 02-19-2003 03 ...

make ip rule table and ip route permanent after reboot

I have a container and want to apply policy based routing to ensure that container will send traffic out on the normal eth0 instead of my tun0 used as default.

Tailscale & WireGuard co-existing (or: I love policy based routing!)

This comes under the old way of doing things… based on a destination address; while what we have nowadays is policy based routing, wherein we ...

ip-route - routing table management - Ubuntu Manpage

Route tables: Linux-2.x can pack routes into several routing tables identified by a number in the range from 1 to 2^32-1 or by name from the file / ...

Chapter 3. Linux Policy Routing Structures - O'Reilly

Chapter 3. Linux Policy Routing Structures The case for implementing Policy Routing and the related structures is easy to see. What is harder to grasp is ...

How to clear the route table? - Linux.org

After I have assigned those IP addresses to those devices, I run the Route command and it shows me a table with the six devices and the ...

Linux route Add Command Examples - nixCraft

Add route rule command · Linux add a default route using route command · Linux add a default gateway (route) using ip command · Verify newly added ...

Source Based Routing - Waikato Linux Users Group

A simple introduction (with a nice easy example) to source based routing ... On standard Internet systems, when you receive a packet and decide ...

Routing Decisions in the Linux Kernel - Part 2: Caching

It is only called in case of a cache miss and executes the full-blown routing table lookup including policy-based routing. In newer kernels, ...

Linux Policy Routing-Based IDS Load Balancer HOWTO - LWN.net

Linux Policy Routing-Based IDS Load Balancer HOWTO · 1 Adjust one kernel parameter and reboot. · 2 Adjust /proc/sys/net/... to tune your routing ...

Traefik Routers Documentation

To avoid path overlap, routes are sorted, by default, in descending order using rules length. The priority is directly equal to the length of the rule, and so ...

Routing Based on HTTP - Ask Ubuntu

The answer to this question is Policy Based routing. One can use IP Tables to mark packets. One can then create rules to manage the routes ...

Policy Routing with VLANs - Ubuntu Forums

The goal is to have a default route out each VLAN from traffic sourced from IP(s) assigned to that interface. Linux Host VLAN20: 192.168.20.50