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Community Member

PPPoE on 2811

Hi,

We have a 2811 router and we are to connect an ADSL service to its Fast Ethernet port using PPPoE. Carrier already supplied username and password but I'm having a hard time to make it work. I'm not sure if the PPPoE configuration of the carrier is already correct as they usually have issues with this but is there someone who can share a working config for a 2811 using Fast Ethernet for PPPoE?

If I configure PPPoE on the FE interface then I'm not getting any IP address and I'm not sure if I have done it right. But using IP address DHCP config, I'm just getting a regular private IP address from them.

I cannot find a really good document on how to make this work.

Thanks in advance.

John     

5 REPLIES
Community Member

PPPoE on 2811

Dear John,

Do a "debug ppp authentication" and "debug ppp negotataion" to find out any credential issue, but if you are getting an ip address means authentication is fine and connection is ok. also make sure you have default route to dialer interface,

find the below example config for ppp0e for fa interface


interface FastEthernet0/0
no ip address
duplex auto
speed auto
pppoe enable group global
pppoe-client dial-pool-number 1
no sh

!
interface Dialer1
bandwidth 100000

ip mtu 1492

ip address negotiated
encapsulation ppp
ip tcp adjust-mss 1452
dialer pool 1
ppp chap hostname xxx
ppp chap password yyy
ppp pap sent-username xxx password yyy

Thanks

Shanil 

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Community Member

Re: PPPoE on 2811

Thanks. Here's my current configuration. I can only get an IP address if I do a "ip address dhcp" on Fa0/0 which is not the dialer interface. Still doesn't work. I would probably need to contact the carrier again.

interface FastEthernet0/0

description dsl_interface_to_adsl

no ip address

no ip proxy-arp

ip virtual-reassembly

duplex auto

speed auto

pppoe enable group global

pppoe-client dial-pool-number 1

interface Dialer1

mtu 1492

ip address negotiated

ip nat outside

ip virtual-reassembly

zone-member security outside

encapsulation ppp

dialer pool 1

dialer-group 1

ppp authentication chap pap callin

ppp chap hostname xxxxxx

ppp chap password xxxxxxx

ppp pap sent-username xxxxxxxx password 7 xxxxxxx

ip nat inside source list inside_net interface Dialer1 overload

ip access-list extended inside_net

deny   ip 10.0.0.0 0.255.255.255 10.0.0.0 0.255.255.255

permit ip 10.199.67.0 0.0.0.63 any

ip route 0.0.0.0 0.0.0.0 Dialer1

Community Member

Re: PPPoE on 2811

Yes. Also you can directly connect the adsl line to a laptop/PC and create a dialup connection and check to confirm the line and credentials are fine.

Thanks

Shanil

Community Member

Re: PPPoE on 2811

Thanks. I was too lazy to do that but I'll do it. lol

Community Member

Re: PPPoE on 2811

All configurations are correct. It was the carrier's fault. Thanks guys!

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