How to connect to internet in Slackware through PPPoE Broadband

Here are steps to connect to internet in Slackware through PPPoE Broadband:

root@slack:~# pppoe-setup

Welcome to the Roaring Penguin PPPoE client setup. First, I will run
some checks on your system to make sure the PPPoE client is installed
properly...

Looks good! Now, please enter some information:

USER NAME

Enter your PPPoE user name (default my.username)

INTERFACE

Enter the Ethernet interface connected to the DSL modem
For Solaris, this is likely to be something like /dev/hme0.
For Linux, it will be ethn, where 'n' is a number.
(default eth0):

Do you want the link to come up on demand, or stay up continuously?
If you want it to come up on demand, enter the idle time in seconds after which the link should be dropped. If you want the link to stay up permanently, enter 'no' (two letters, lower-case.)

NOTE: Demand-activated links do not interact well with dynamic IP addresses. You may have some problems with demand-activated links.

So, Enter the demand value (default no)

DNS

Please enter the IP address of your ISP's primary DNS server.
If your ISP claims that 'the server will provide DNS addresses', enter 'server' (all lower-case) here.
If you just press enter, I will assume you know what you are doing and not modify your DNS setup.

Enter the DNS information here: server

PASSWORD

Please enter your PPPoE password:
Please re-enter your PPPoE password:

FIREWALL

Please choose the firewall rules to use. Note that these rules are very basic. You are strongly encouraged to use a more sophisticated firewall setup; however, these will provide basic security. If you are running any servers on your machine, you must choose 'NONE' and set up firewalling yourself. Otherwise, the firewall rules will deny access to all standard servers like Web, e-mail, ftp, etc. If you
are using SSH, the rules will block outgoing SSH connections which allocate a privileged source port.

The firewall choices are:

0 - NONE: This script will not set any firewall rules. You are responsible for ensuring the security of your machine. You are STRONGLY recommended to use some kind of firewall rules.
1 - STANDALONE: Appropriate for a basic stand-alone web-surfing workstation
2 - MASQUERADE: Appropriate for a machine acting as an Internet gateway
for a LAN

Choose a type of firewall (0-2): 1

Summary of what you entered:

Ethernet Interface: eth0
User name: my.username
Activate-on-demand: No
DNS addresses: Supplied by ISP's server
Firewalling: STANDALONE

Accept these settings and adjust configuration files (y/n)? y

Adjusting /etc/ppp/pppoe.conf
Adjusting /etc/ppp/pap-secrets and /etc/ppp/chap-secrets
(But first backing it up to /etc/ppp/pap-secrets-bak)
(But first backing it up to /etc/ppp/chap-secrets-bak)

Congratulations, it should be all set up!

Type 'pppoe-start' to bring up your PPPoE link and 'pppoe-stop' to bring it down.
Type 'pppoe-status' to see the link status.

root@slack:~# pppoe-start
. Connected!
root@slack:~# ping www.google.com
ping: unknown host www.google.com
root@slack:~# pppoe-status
pppoe-status: Link is up and running on interface ppp0
ppp0 Link encap:Point-to-Point Protocol
inet addr:86.127.30.194 P-t-P:212.93.137.170 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1
RX packets:9 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:213 (213.0 b) TX bytes:69 (69.0 b)