two adsl lines' problem?Can it be done?

[litouch]

My company has bought two adsl lines from a isp for accessing the Internet.I have a 1721 router and two wic-1adsl cards.Now I want to use these lines increasing the bandwidth,but I don't like to use policy-based routing by dividing the inside network.I hope the inside users can select a random route.

Can this be done?

I had a config but it didn't work well.

interface f 0

ip add x.x.x.x x.x.x.x

ip nat inside

interface atm 0

no ip add

.....

interface atm 1

no ip add

.....

interface dialer1

ip address nego

ip nat outside

ip mtu 1492

dial-group 1

dial-pool 1

encap ppp

ppp authen pap

ppp pap sent xxx pass xxx

interface dialer2

ip address nego

ip nat outside

ip mtu 1492

dialer-group 1

dialer-pool 2

encap ppp

ppp authen pap

ppp pap sent yyy pass yyy

ip route 0.0.0.0 0.0.0.0 dialer1

ip route 0.0.0.0 0.0.0.0 dialer2

ip nat inside source route-map adsl1 interface dialer1 overload

ip nat inside source route-map adsl2 interface dialer2 overload

route-map adsl1 permit 10

match ip address 1

match interface dialer1

route-map adsl2 permit 10

match ip address 1

match interface dialer2

access-list 1 permit any

dialer-list 1 protocol ip permit

Thanks a lot!

litouch

[tepatel]

PPP multilink support for ATM is available which you can find in the following document. See if this is possible in your scenario. But, I guess the provider also has to support it and configure for the same. http://www.cisco.com/en/US/products/sw/iosswrel/ps1839/products_feature_guide09186a00801149cf.html

Just ignore the policy based routing config.

[cteoh]

Hi there, did you ended up getting this ML-PPP configuration to work?

I notice the ML-PPP was across ATM VCs and did not have CHAP authentication parameters that you would typically have for dial-up to a ADSL service provider.