Cisco 1721 with 2 x ADSL PPPoE

[cwy]

Hi all,

I have the below config. to connect a Cisco 1721 with 2 ADSL lines. I already use the ADSL +Plus IOS for the config, but I only get 1 ADSL to connect. Please advise my config is ok or not.

vpdn enable

!

vpdn-group 1

request-dialin

protocol pppoe

!

interface Ethernet0

no ip address

full-duplex

pppoe enable

pppoe-client dial-pool-number 1

!

interface Ethernet1

no ip address

full-duplex

pppoe enable

pppoe-client dial-pool-number 2

!

interface FastEthernet0

ip address 192.168.168.1 255.255.255.252

ip nat inside

speed 100

full-duplex

!

interface Dialer1

ip address negotiated

ip mtu 1492

ip nat outside

encapsulation ppp

dialer pool 1

dialer-group 1

ppp authentication pap callin

ppp pap sent-username xxxxxxxx password 7 xxxxxxx

!

interface Dialer2

ip address negotiated

ip mtu 1492

ip nat outside

encapsulation ppp

dialer pool 2

dialer-group 1

ppp authentication pap callin

ppp pap sent-username xxxxxx password 7 xxxxxxx

!

ip nat inside source list 101 interface Dialer2 overload

ip nat inside source list 102 interface Dialer1 overload

!

dialer-list 1 protocol ip permit

Thanks!

[Georg Pauwen]

Hello,

unless something has changed recently, the WIC-1ENET is only supported in Slot 0 of the Cisco 1700. That is, only 1 card is supported.

Check the following document:

WIC-1ENET Restrictions and Unsupported Features

http://www.cisco.com/en/US/tech/tk175/tk15/technologies_configuration_example09186a0080093fbf.shtml#wic-1enetrest

HTH,

GP

[cwy]

Hi,

I checked from the page of 1721, but it didn't mentioned about that. "The Cisco 1721 supports up to two of the WICs listed in Table 3.WIC-1ENET

One-port 10BASE-T Ethernet interface"

http://www.cisco.com/en/US/products/hw/routers/ps221/products_data_sheet09186a00800920ec.html

Thanks!

[dbellaze]

If you disconnect one of the DSL lines manually does the other come up?

Can you enable debug ppp neg, and debug pppoe event (could be wrong can't remember exactly) and post that information. You maybe failing to negotiate the pppoe tunnel or failing authentication on one of the lines.

I would also recommend putting "ip tcp adjust-mss 1452" on your dialer interface to avoid MTU issues that are common with PPPoE.

Daniel