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ISDN Wrong hostname to authenticate

Hi all,

I use the command 'ppp chap hostname' under interface dialer, when i debug log why i saw the router send the router original hostname? but if i move the command to the BRI, it's work!!

Here is some configure of the router

hostname: AAA

interface BRI1/1

no ip address

encapsulation ppp

dialer pool-member 1

isdn switch-type basic-net3

isdn point-to-point-setup

ppp authentication chap

!

interface Dialer12

ip unnumbered loopback0

ip virtual-reassembly

encapsulation ppp

dialer pool 1

dialer remote-name <deleted>

dialer idle-timeout 0

dialer-group 1

no cdp enable

ppp authentication chap

ppp chap hostname BBB

ppp chap password 7 <deleted>

!

Here is the debug

Feb 19 2010 15:14:11.981 : BR1/1:2 LCP: State is Open
Feb 19 2010 15:14:11.981 : BR1/1:2 PPP: Phase is AUTHENTICATING, by both
Feb 19 2010 15:14:11.981 : BR1/1:2 CHAP: O CHALLENGE id 176 len 28 from "AAA"   <------Original hostname
Feb 19 2010 15:14:12.001 : BR1/1:2 CHAP: I CHALLENGE id 75 len 29 from "<deleted>"
Feb 19 2010 15:14:12.001 : BR1/1:2 CHAP: Waiting for Peer to authenticate first
Feb 19 2010 15

Thank in advance

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