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Freebsd01
Description A FreeBSD connected to two Alpine Linux Hosts
Components FreeBSD, Multitool Alpine Linux
Resource requirements1 1
512 MB
Topology file freebsd01.clab.yml
Name freebsd01
Version information2 freebsd-13.2-zfs-2023-04-21.qcow2, docker:24.0.6

Description#

This lab consists of one FreeBSD router connected to two Alpine Linux nodes.

client1<---->FreeBSD<---->client2

Configuration#

The FreeBSD node takes about 1 minute to complete its start up. Check using "docker container ls" until the FreeBSD container shows up as "healthy".

# docker container ls
CONTAINER ID   IMAGE                                  COMMAND                  CREATED              STATUS                        PORTS                                       NAMES
30c629f1a12e   vrnetlab/vr-freebsd:13.2               "/launch.py --userna…"   23 hours ago   Up 23 hours (healthy)   22/tcp, 5000/tcp, 10000-10099/tcp           clab-freebsd01-fbsd1
6b476bfa41b1   wbitt/network-multitool:alpine-extra   "/bin/sh /docker-ent…"   23 hours ago   Up 23 hours             80/tcp, 443/tcp, 1180/tcp, 11443/tcp        clab-freebsd01-client2
21ab9e4857b3   wbitt/network-multitool:alpine-extra   "/bin/sh /docker-ent…"   23 hours ago   Up 23 hours             80/tcp, 443/tcp, 1180/tcp, 11443/tcp        clab-freebsd01-client1

fbsd01#

Log into the FreeBSD node using SSH with ssh admin@clab-freebsd01-fbsd1 and add the following configuration. Password is admin.

sudo sysctl net.inet.ip.forwarding=1
sudo ifconfig vtnet1 192.168.1.1/30
sudo ifconfig vtnet2 192.168.2.1/30

client1#

The two clients should be configured with the correct IP addresses and a route to the other client via the FreeBSD node. First attach to the container process docker exec -it clab-freebsd01-client1 ash

docker exec -it clab-freebsd01-client1 ash

# ip -br a show dev eth1
eth1@if71231     UP             192.168.1.2/30 fe80::a8c1:abff:fe17:b15f/64

# ip r
default via 172.20.20.1 dev eth0
172.20.20.0/24 dev eth0 proto kernel scope link src 172.20.20.3
192.168.1.0/30 dev eth1 proto kernel scope link src 192.168.1.2
192.168.2.0/30 via 192.168.1.1 dev eth1

Verification#

Traceroute from client1 to client2 to verify the data-plane via the FreeBSD node.

client1#

# traceroute 192.168.2.2
traceroute to 192.168.2.2 (192.168.2.2), 30 hops max, 46 byte packets
 1  192.168.1.1 (192.168.1.1)  0.680 ms  0.676 ms  0.597 ms
 2  192.168.2.2 (192.168.2.2)  1.105 ms  1.088 ms  0.869 ms

  1. Resource requirements are provisional. Consult with the installation guides for additional information. ↩

  2. The lab has been validated using these versions of the required tools/components. Using versions other than stated might lead to a non-operational setup process. ↩