Hi Folks,

In an effort to help out a colleage, I had sent an email to an ISP
showing them a trace similar to the following :

 > (linux rx [1545}) serial line IP: len:  76
 > IP:  len 76 128.54.16.18->216.196.13.242 ihl 20 ttl 238 prot IP(4)
 > IP:  len 56 207.90.83.25->44.70.221.2 ihl 20 ttl 240 prot ICMP
 > ICMP: type Unreachable code Administratively Prohibited

I originally interpreted this as meaning that the router in
question '207.90.83.25' was blocking this. Am I wrong ? I don't
believe I am, but if anyone wants to 'educate' me, please do.

The response I got back is this (I assume reason for blockage) :

> ICMP is the error and control message protocol used  by  the
> Internet  protocol family.  It is used by the kernel to handle and report
> errors in protocol processing.  The message ID (of the header) doesn't have
> an @ symbol, it violates RFS 822, causing the message to be discarded.

This came from the voyager.net help desk. Can someone elaborate on
this for me. I am not familiar with this stuff to this depth. Are
there any 'solutions' to this problem of the missing '@' ???

Any help would be greatly appreciated.

-- 

Maiko Langelaar
Product Engineering Group
SLMsoft.com

Winnipeg, Manitoba, Canada

Tel   : 204-786-2656 (ext 439)
Fax   : 204-783-8286
Email : [EMAIL PROTECTED]
www   : http://www.slmsoft.com
-
[To unsubscribe, send mail to [EMAIL PROTECTED] with
"unsubscribe firewalls" in the body of the message.]

Reply via email to