Re: Debugging LCP packets

John Storms (jstorms@livingston.com)
Wed, 06 Aug 1997 08:42:45 -0700

At 03:20 PM 7/31/97 -0700, Leonard wrote:
>Hi,
> I was wondering if anyone knows a good source for decoding the LCP
>packets when a "set debuf 0x51" is used.
> I mean things like:
>Received LCP_CONFIGURE_REQUEST on port S45 of 27 bytes containing:
>01 01 00 1f 01 04 05 f2 03 04 c0 23 05 06 00 0f
>0d ee 07 02 08 02 13 09 03 00 40 f9 11 40 d1
>Sending LCP_CONFIGURE_NAK to port S45 of 9 bytes containing:
>03 01 00 09 03 05 c2 23 05

PortMaster is rejecting the CHAP protocol. I wouldn't speculate and
further than that without the entire trace.

Dring: Decoder Ring for Livingston Product PPP traces
-----------------------------------------------------

Received LCP_CONFIGURE_REQUEST on port S45 of 27 bytes containing:
01 01 00 1F 01 04 05 F2 03 04 C0 23 05 06 00 0F 0D EE 07
02 08 02 13 09 03 00 40 F9 11 40 D1
Packet Info: Code: 01, ID: 01, 31 bytes.
Maximum-Receive-Unit [0x01], length: (4 bytes) 1522 bytes [0x05F2]
Authentication-Protocol [0x03], length: (4 bytes), Password
Authentication Protocol [0xC023]
Magic-Number [0x05], length: (6 bytes), [0x000F0DEE]
Protocol-Field-Compression [0x07], length: (2 bytes)
Address-and-Control-Field-Compression [0x08], length: (2 bytes)
Multilink-Endpoint-Discriminator [0x13], length: (9 bytes),
[0x030040F91140D1]
Class [0x03]: IEEE 802.1 MAC Address 00 40 F9 11 40 D1

Sending LCP_CONFIGURE_NAK to port S45 of 9 bytes containing:
03 01 00 09 03 05 C2 23 05
Packet Info: Code: 03, ID: 01, 9 bytes.
Authentication-Protocol [0x03], length: (5 bytes), Challenge
Handshake Authentication Protocol [0xC22305]

---
jstorms@livingston.com
Diplomacy:  The art of saying good doggie
while seaching for a big rock.