Vyatta Linux Router, Pt 2.

Well I’m a sell out, it’s official. I’ve had such an overwhelming response, according to my stats, on the Vyatta router story that I had to do another. So let’s grab some documentation and get started. By the way here’s the quick start guide, and the command reference for your convenience. I do this because to get the command reference they want you to register and give your e-mail address, unless you know the direct link. Ok, so back at the barn….. I set my test board back up but hooked to my KVM on my main machine and plugged into my network. My main box is running DHCP with Dynamic DNS updates to my in house DNS server on the same box and getting routed out the house through the same box via a NAT firewall through my 8Mb/512Kb cable modem. The main machine is a AMD FX2 3800 with 2GB and dual onboard Gigabit NICs. The test board is from a thin client (got it off an auction) and just a little oversized from a standard mini-itx, which has internal 100Mb NIC and basic IO including audio, video, serial, usb, etc. It is running an unknown VIA 1Ghz processor with 512MB ram and a 1GB CF card for storage, as well as being loaded with a second D-link 100Mb NIC in the single PCI slot. Now that we have specs out of the way, let’s fire this thing off.

So I started booting the test board and then pulled up the docs on a different screen to learn how to setup a few basics. Skimming the docs I learned that they seem to have taken a lesson from the routing industry and have created a Command Line Interface similar to popular commercial routers. You can have different users with different privileges and then there are different modes for working in the router. The first mode is called “Operational Mode” which allows you to run basic utilities for diagnostics and show settings for troubleshooting. To set anything you need to enter the “Configuration Mode” with the command configure, which allows you to change and commit settings. We’ll hit that in a minute. First let’s login. Default credentials are root with a password of vyatta for your privileged user, and username vyatta with password of vyatta for your non-privileged user. Now let’s check our connectivity and see if we can talk to the network we are plugged into. Vyatta has the familiar tab completion for commands found in both UNIX systems and commercial routers, which helps you muttle your way through with minimal referencing of the docs. Logged in as the root user I did the following…..

Last login: Fri Aug 8 01:28:13 2008 from 192.168.60.1
Linux vyatta 2.6.23-1-486-vyatta #1 SMP Sat Apr 19 12:37:43 PDT 2008 i686
Welcome to Vyatta.
This system is open-source software. The exact distribution terms for
each module comprising the full system are described in the individual
files in /usr/share/doc/*/copyright.
vyatta:~# show interfaces ethernet
Interface IP Address State Link Description
eth0 192.168.60.252/24 up up
eth1 – up down
vyatta:~#

Now you can see in this terminal output that I already have an address, but it didn’t to start with, so I need to configure that……

vyatta:~# configure
[edit]
root@vyatta# set interfaces ethernet eth0 address dhcp
[edit]
root@vyatta#

Ok so far so good. Now let’s setup ssh so we don’t need a monitor and keyboard attached to it.

root@vyatta# set service ssh port 22
[edit]
root@vyatta# set service ssh allow-root
[edit]
root@vyatta# commit
There should be some text here about generating the ssh keys and restarting the service.
root@vyatta# exit
exit
vyatta:~#

Ok so now we should be able to login to this thing. Let’s go find the IP address and check the interface.

vyatta:~# show interfaces ethernet detail
eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:16:ec:54:fd:e8 brd ff:ff:ff:ff:ff:ff
inet 192.168.60.252/24 brd 192.168.60.255 scope global eth0
inet6 fe80::216:ecff:fe54:fde8/64 scope link
valid_lft forever preferred_lft forever

RX: bytes packets errors dropped overrun mcast
76484 719 0 0 0 0
TX: bytes packets errors dropped carrier collisions
54652 443 0 0 0 0

eth1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:40:05:08:9e:26 brd ff:ff:ff:ff:ff:ff

RX: bytes packets errors dropped overrun mcast
0 0 0 0 0 0
TX: bytes packets errors dropped carrier collisions
0 0 0 0 0 0

vyatta:~#

Looks good to me. Now go ssh over to it and play. I will post more to come.

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