RE: Tcpdump: "admin prohibited filter"

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But I definitely didn't set any rule! I even disable firewalling at all,
despite the horrorific warning from the system!

Anyway, I will check more carefully as soon as possible.

Thanks a lot! I guess it was not a very interesting reading...

On Thu, 2004-07-01 at 14:51, Yang Xiao wrote:
> > -----Original Message-----
> > From: Andrea Giuliano [mailto:a.giuliano@xxxxxxxxxxx] 
> > Sent: Thursday, July 01, 2004 4:30 AM
> > To: For users of Fedora Core releases
> > Subject: Tcpdump: "admin prohibited filter"
> > 
> > 
> > Dear all,
> > 
> > trying to make my ADSL connection working, I ran across this 
> > suspicious line in the output from  "tcpdump -i ppp0":
> > 
> > 23:50:26.876061 IP 192.168.100.1 > 82.53.151.158: icmp 36: 
> > host 217.144.248.190 unreachable - admin prohibited filter
> > 
> > The output is full of such lines (you can see the whole 
> > output below). What do they mean? Who's the admin? Myself on 
> > my local host or the admin of the remote host (in other 
> > words, one of the ISP's admins)?
> > 
> > Since I simply cannot use the connection, even it seems to be 
> > up and running, I was wondering if this messages could hide 
> > the actual cause of my problems: maybe my ISP has made some 
> > changes that prevent me from use the line effectively?
> > 
> > Please note the following:
> > 
> > 1) I only had the connection working for one day, June 21, on FC1.
> > 2) On June 22 I upgraded to FC2, and the connection became 
> > slow, but still working.
> > 3) Since June 23, the connection is definitely useless. No 
> > host can be reached, not even the DNS server of my ISP, as 
> > listed in the syslog after the ppp0 interface has come up.
> > 
> > Best regards.
> > 
> > -- 
> > Andrea Giuliano, Ph. D.
> > ICCU - Istituto Centrale per il Catalogo Unico
> > Viale Castro Pretorio 105, Rome - ITALY
> > Tel. +39064989509, Fax +39064059302
> > 
> > 
> Gee, I read you message again, in it's entirety, it sounds like the host
> with IPTABLES rules is yours. :P
> 
> Yang
-- 
Andrea Giuliano, Ph. D.
ICCU - Istituto Centrale per il Catalogo Unico
Viale Castro Pretorio 105, Rome - ITALY
Tel. +39064989509, Fax +39064059302



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