Мой конфиг. Заодно и колбек будет.aaa new-model
aaa authentication ppp dialr radius
aaa authorization network dialr radius
aaa accounting update newinfo
aaa accounting exec default start-stop radius
aaa accounting network default start-stop radius
interface Async2
description Dial-UP
bandwidth 33
ip unnumbered Loopback0
no ip directed-broadcast
encapsulation ppp
ip tcp header-compression passive
no ip mroute-cache
async mode interactive
peer default ip address x.x.x.x
random-detect
no cdp enable
ppp callback accept
ppp authentication pap dialr
ppp authorization dialr
radius-server host x.x.x.x auth-port 1812 acct-port 1813
radius-server timeout 40
radius-server key xxxx
line 2
autoselect during-login
autoselect ppp
script modem-off-hook offhook
script callback callback
modem InOut
transport input all
callback forced-wait 5
callback nodsr-wait 10000
stopbits 1
speed 115200
flowcontrol hardware