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# FIB manipulation
This page explains how to perform FIB manipulation; kernel routing
table updates, interface lookups, and redistribution of routes between
different routing protocols. GoBGP uses zebra included in
[Quagga](http://www.nongnu.org/quagga/).
## Prerequisites
Assume you finished [Getting Started](https://github.com/osrg/gobgp/blob/master/docs/sources/getting-started.md) and installing [Quagga](http://www.nongnu.org/quagga/) on the same host with GoBGP.
## Contents
- [Configuration](#section0)
- [Check routes from zebra](#section1)
## <a name="section0"> Configuration
You need to enable the zebra feature in the Global configuration as follows.
```toml
[Global]
[Global.Zebra]
Enabled = true
Url = "unix:/var/run/quagga/zserv.api"
```
You can skip Url. If it's skipped, GoBGP uses "unix:/var/run/quagga/zserv.api" as the Url.
This configuration specifies unix domain socket in its Url and you can change it to the one using TCP.
If you use TCP, Url can be like "tcp:192.168.24.1:2600".
## <a name="section1">Check Routes from zebra
Zebra has 3 connected routes in this example's environment.
- 172.16.1.100/30
- 172.16.6.100/30
- 192.168.31.0/24
Let's check these routes with GoBGP cli.
```bash
$ gobgp global rib
Network Next Hop AS_PATH Age Attrs
*> 172.16.1.100/30 0.0.0.0 00:00:02 [{Origin: i} {Med: 1}]
*> 172.16.6.100/30 0.0.0.0 00:00:02 [{Origin: i} {Med: 1}]
*> 192.168.31.0/24 0.0.0.0 00:00:02 [{Origin: i} {Med: 1}]
```
You can see connected routes stored in the GoBGP global rib.
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