The following has worked for a number of ISPs to get PPPoA working. The existing bridging users can remain but new PVCs/users would be brought up as PPP.
Here's the commands to set the 675 up for PPP, remember that the 675 does PAP for authentication so your router has to do PAP and have a local user/passwd or use radius or tacacs+ for authetication.
These commands set ipcp be 0.0.0.0 which will allow for dynamic address assignment via IPCP, DHCP is enabled with 10.0.0.1 on the ethernet of the 675 and NAT's enabled.
set prompt router
set ppp wan0-0 ipcp 0.0.0.0
set ppp wan0-0 dns 0.0.0.0
set ppp wan0-0 login [username]
set ppp wan0-0 password [password]
set dhcp server enabled
set nat enabled
set snmp enabled
write
reboot
You'll need 12.0(2)T as a minimum and here's the
config:
(EVERYTHING WITH A ! IS A COMMENT)
! IOS 12.0 or later - attached to ILEC ATM Cell-Relay
Service
! The username and password HAVE to match the 675's
! PPP username and password
!
username [username] password [password]
!
controller T1 0
framing esf
linecode b8zs
! New 12.0 command, adds INT ATM 0
! INT SERIAL 0 no longer valide
mode atm
!
aaa new-model
aaa authentication login default local
aaa authentication ppp default local
aaa authorization exec default local
aaa authorization network default local
!
interface Virtual-Template 1
ip unnumbered ethernet 0
! Assigns registered IP address to 675 from dslPPP address pool
peer default ip address pool dslPPP
!Enables authentication, 675 only uses PAP
ppp authentication pap
!
interface ATM0
no ip address
no ip directed-broadcast
!
interface ATM0.41 point-to-point
no ip directed-broadcast
! New 12.0 PVC commands
pvc PPPNAT 0/41
encaps aal5mux ppp virtual-Template 1
! Optional, limits downstream to 256kbps
ubr 256
!
! Pool to assign IP addresses to 675s
!
ip local pool dslPPP 172.28.78.2 172.28.78.19
!
This page is maintained by Jay Stewart, bhagwan@themoon.org ., the configurations listed have been amalgamated from working and suggested Cisco 3810 DSL setups from Cisco TAC, other ISPs, would be Cisco Jocks and others. The author of the homepage will take no responsibility for screwing up your router if you use any of these configs. Use at your own risk!!! Your mileage may vary. . . .
v1.1