unknown PPP protocol - fragmentation problems

[Gianni Doe]

Hi
I've just changed ISP and I am having some issues with PPP and large  
packets.


I've got a Draytek Vigor 100 ethernet modem which proxies PPPoA -  
PPPoE so I can initiate the PPPoE connection to my ISP from my FreeBSD  
7.0-STABLE box. This worked perfectly with my previous ISP but now any  
packets larger than 1500 bytes and thus requiring fragmentation which  
arrive in do not make it to the tun0 ppp interface.


For example here I initiate a large ping from outside my network to  
the machine on which my ppp client is running -

# ping -s 1500 -c 1 88.129.153.191

This is what arrives on the physical vr1 interface on which pppoe is  
running


002774 00:50:7f:8c:f2:08  00:00:24:c9:57:39, ethertype PPPoE S  
(0x8864), length 1018: PPPoE  [len 1502  998!] [ses 0x3ec] unknown  
(0x2021), length 998: unknown PPP protocol (0x2021)

0x:  4500 eb13 4357 2000 3301 0334 5775 d0c5
0x0010:  5895 9ac6 0800 6190 ffe8  47fc a40e
0x0020:   efd9 0809 0a0b 0c0d 0e0f 1011 1213
0x0030:  1415 1617 1819 1a1b 1c1d 1e1f 2021 2223
0x0040:  2425 2627 2829 2a2b 2c2d
40 00:50:7f:8c:f2:08  00:00:24:c9:57:39, ethertype PPPoE S  
(0x8864), length 538:  [ver 4] [type 5]PPPoE  [len 1502  518!] [ses  
0x20c] unknown (0x009e), length 518: unknown PPP protocol (0x009e)

0x:  4500 d3ea 4357 2000 3301 0334 c8c9 cacb
0x0010:  cccd cecf d0d1 d2d3 d4d5 d6d7 d8d9 dadb
0x0020:  dcdd dedf e0e1 e2e3 e4e5 e6e7 e8e9 eaeb
0x0030:  eced eeef f0f1 f2f3 f4f5 f6f7 f8f9 fafb
0x0040:  fcfd feff 0001 0203 0405
11 00:50:7f:8c:f2:08  00:00:24:c9:57:39, ethertype PPPoE S  
(0x8864), length 70: PPPoE  [ses 0x6] IP (0x0021), length 50: (tos  
0x0, ttl 51, id 17239, offset 1480, flags [none], proto ICMP (1),  
length 48) 87.119.223.147  88.129.153.191: icmp


This is all that arrives on the tun0 ppp interface

15. 242441 AF IPv4 (2), length 52: (tos 0x0, ttl 51, id 18322, offset  
1480, flags [none], proto ICMP (1), length 48) 87.119.223.147   
88.129.153.191: icmp


If anyone can decipher this and give me an idea of what's going wrong  
I'd be most grateful.

Thanks
Gianni
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Boot menu and USB keyboard

[Gianni Doe]

I've got a USB keyboard and I'm unable to select any of the options in  
the boot loader/beastie menu - escape to the loader prompt, single- 
user mode etc..
It is the only keyboard attached and it works fine once the system is  
up.


I've done a bit of Googling and tried setting hint.atkbd.0.flags=0x1  
in loader.conf but it doesn't make any difference.

I'd appreciate some suggestions.
Thanks
Gianni
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Re: Boot menu and USB keyboard

[Gianni Doe]

On 04/apr/08, at 14:23, Robert Huff wrote:

I've got a USB keyboard and I'm unable to select any of the
options in the boot loader/beastie menu - escape to the loader
prompt, single- user mode etc..
It is the only keyboard attached and it works fine once the
system is up.

What version of the OS?  I used to have this problem, but it
disappeared ... sometime between 6.0 and 7.0, I think.
And I'm pretty sure this was discussed on the mailing lists -
try searching under Huff USB keyboard.
Robert Huff


I'm running 7.0-STABLE and legacy USB support is enabled in the BIOS,  
motherboard is ASUS A8V.
I did search but all the stuff I found is a few years old, so should  
the boot menu definitely support usb keyboard?

-Gianni
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