(ASCEND) Cisco 1600 --> TNT PPP negotiation problem

["Leigh Spiegel" <leigh@winshop.com.au>]

Hello,

I can't seem to solve this problem with an Cisco dialing a TNT, I'm sure it
can work as I've seen sample configs for it, but
they don't seem to be working.

The only thing I can see different to the samples on Ciscos and Ascend's
website is the routing which I didn't add in yet
as routing should not be causing problems with PPP negotiation.

I have a PM3 and Netopia dialing the TNT ISDN however the Cisco will not
complete the ppp negotiation.

Cisco Config:

interface ethernet0
 ip address xxx.xxx.103.1

interface BRI0
 description ISDN Link to xxxxx
 ip unnumbered ethernet0
 encapsulation ppp
 bandwidth 128
 dialer idle-timeout 604800
 dialer enable-timeout 5
 dialer wait-for-carrier-time 15
 dialer map ip xxx.xxx.45.3 name acc1 broadcast 012345678
 dialer load-threshold 2 either
 dialer-group 1
 priority-group 1
 ppp authentication pap callin
 ppp pap sent-username xxxx password xxxxx
 ppp multilink

Debug from Cisco:

BR0:1 PPP: Treating connection as a callout
BR0:1 PPP: Phase is ESTABLISHING, Active Open
BR0:1 PPP: No remote authentication for call-out
BR0:1 LCP: O CONFREQ [Closed] id 7 len 24
BR0:1 LCP:    MagicNumber 0x10A26AA8 (0x050610A26AA8)
BR0:1 LCP:    MRRU 1524 (0x110405F4)
BR0:1 LCP:    EndpointDisc 1 Local (0x130A016D6862742D6777)
BR0:1 LCP: TIMEout: Time = 0x277234 State = REQsent
BR0:1 LCP: O CONFREQ [REQsent] id 8 len 24
BR0:1 LCP:    MagicNumber 0x10A26AA8 (0x050610A26AA8)
BR0:1 LCP:    MRRU 1524 (0x110405F4)
BR0:1 LCP:    EndpointDisc 1 Local (0x130A016D6862742D6777)
BR0:1 LCP: I CONFREQ [REQsent] id 1 len 29
BR0:1 LCP:    VendorSpecific OUI 0x000001 (0x00040000)
BR0:1 LCP:    MRU 1524 (0x010405F4)
BR0:1 LCP:    AuthProto PAP (0x0304C023)
BR0:1 LCP:    MRRU 1524 (0x110405F4)
BR0:1 LCP:    EndpointDisc 3 00c0.7b8e.a070 (0x13090300C07B8EA070)
BR0:1 LCP: O CONFREJ [REQsent] id 1 len 12
BR0:1 LCP:    VendorSpecific OUI 0x000003 (0x00040000)
BR0:1 LCP:    AuthProto PAP (0x0304C023)
BR0:1 LCP: I CONFACK [REQsent] id 8 len 24
BR0:1 LCP:    MagicNumber 0x10A26AA8 (0x050610A26AA8)
BR0:1 LCP:    MRRU 1524 (0x110405F4)
BR0:1 LCP:    EndpointDisc 1 Local (0x130A016D6862742D6777)
BR0:1 LCP: I TERMREQ [ACKrcvd] id 2 len 4
BR0:1 LCP: O TERMACK [ACKrcvd] id 2 len 4
BR0:1 PPP: No remote authentication for call-out

Radius Setup:

xxxx  Auth-Type = System
	Service-Type = Framed-User,
	Framed-Protocol = PPP,
	Framed-IP-Address = xxx.xxx.103.1,
	Framed-IP-Netmask = 255.255.255.0,
	Framed-Route = "xxx.xxx.103.0 xxx.xxx.103.1 1",
	Session-Timeout = 604800,
	Framed-MTU = 1500

The PM3 and the Netopia do not work unnumbered like it seems the Cisco has
to, unless there is a different
subnet for the ISDN interfaces.

The TNT IP: xxx.xxx.45.3
The Ethernet on the Cisco is: xxx.xxx.103.1

Any ideas or suggestions would be greatly appreciated.

BTW: I don't know much about decoding hex debug of PPP sessions, if anyone
knows of some tools for decoding Cisco
debug information into english please point me to a URL and I might find it
very useful.

Regards,

Leigh Spiegel
leigh@winshop.com.au
http://www.winshop.com.au/

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