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09-03-2015 09:38 AM - edited 03-05-2019 02:13 AM
Hello folks.
I have a cisco 890 series router. That router don't have atm interface. Right now my DSL modem already in bridge mode and also my DSL modem already connected with router via its fastethernet interface.
My question is, how to configure a cisco 890 router as DSL dialer(device that supply username and password).
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09-04-2015 01:37 AM
Hi Peter!
Nice to talk to you again.
Thanks for pointing that out, I was pasting a working config from a router I have working in a similar environment but not identical to what was asked :)
I agree on the MTU and MSS adjustment.
Best regards,
Martin
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09-04-2015 01:02 AM
Hello
You could try something like this:
interface FastEthernet0/0
description Connection to DSL modem
pppoe enable group global
pppoe-client dial-pool-number 1
interface Dialer 1
ip address negotiated
encapsulation ppp
dialer pool 1
ppp chap hostname User123
ppp chap password Password123
ppp ipcp route default
This assumes that the Cisco 890 router can discover the service-provider concentrator by using PPPoE Active Discovery Initiation (PADI) messages, and that PPP IPCP is used to obtain the IP address and the default route. It may be the case that your service-providers uses DHCP to obtain this information, in which case remove the IPCP configuration section and configure ip address dhcp under the Dialer.
Best regards,
Martin
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09-04-2015 01:23 AM
Hi Martin,
Please allow me to join. I have a couple of comments to your suggested configuration:
- The pppoe enable group global command on Fa0/0 is inappropriate. This command starts a PPPoE access server instance. On a client device, using pppoe-client dial-pool-number 1 is entirely sufficient and no other PPPoE-related commands shall be entered by the administrator.
- On the Dialer1 interface, it is strongly recommended to use mtu 1492 and ip tcp adjust-mss 1452 to take the diminished MTU into account and make sure that TCP sessions won't be producing oversized segments.
Obviously, the NAT configuration would need to be added as well.
Best regards,
Peter
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09-04-2015 01:37 AM
Hi Peter!
Nice to talk to you again.
Thanks for pointing that out, I was pasting a working config from a router I have working in a similar environment but not identical to what was asked :)
I agree on the MTU and MSS adjustment.
Best regards,
Martin
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09-06-2015 02:28 AM
Hello,
Thanks for the information, this is a hard topic.
Here I make that a video: https://www.youtube.com/watch?v=00zIVQxuEk8&feature=youtu.be
