[clug] Dropped icmp packets - means what?

Felix Karpfen felixk at webone.com.au
Thu Aug 21 09:37:01 EST 2003


Attached is a log of the packets that were dropped by "iptables" today.

While the information in "man icmp" is well over my head, it did sound
to me that icmp messages relate to kernel activities and ought to be
internal to either the computer or - at least - to the network to which
the computer is attached.

Hence I am puzzled by the IP addresses of many of the dropped packages -
I have difficulty in relating these addresses to my ISP (WebOne).

Since WebOne has figured prominently in recent postings to this list, I
thought it worth forwarding my log for <inspection|comment>.

Felix Karpfen 
-- 
Felix Karpfen
felixk at webone.com.au
Public Key 72FDF9DF (DH/DSA)

-------------- next part --------------
                               fwlogwatch output                               
                                                                               
                Generated Thu Aug 21 08:38:50 EST 2003 by root.                
  177 of 1902 entries in the file "/var/log/system" are packet logs, 48 have   
                            unique characteristics.                            
        First packet log entry: Aug 17 07:17:57, last: Aug 21 06:54:44.        
              All entries were logged by the same host: "eureka".              
              All entries are from the same chain: "catch-all ".               
                    All entries have the same target: "-".                     
               All entries are from the same interface: "ppp0".                
                                                                               
#  start end interval proto     source     hostname port  service  destination  hostname port service  opts 

SNIP


3   Aug  Aug    -     icmp   68.88.34.16      -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   37:36 37:                                                                                                
         36                                                                                                 
3   Aug  Aug    -     icmp  210.10.160.121    -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   37:39 37:                                                                                                
         39                                                                                                 
3   Aug  Aug    -     icmp  68.72.165.225     -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   37:59 37:                                                                                                
         59                                                                                                 
3   Aug  Aug    -     icmp  200.59.44.151     -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   40:31 40:                                                                                                
         31                                                                                                 
3   Aug  Aug    -     icmp  207.230.192.51    -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   41:23 41:                                                                                                
         23                                                                                                 
3   Aug  Aug    -     icmp   4.34.209.18      -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   41:59 41:                                                                                                
         59                                                                                                 
3   Aug  Aug    -     icmp  64.231.153.110    -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   42:17 42:                                                                                                
         17                                                                                                 
3   Aug  Aug    -     icmp   165.127.85.4     -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   42:50 42:                                                                                                
         50                                                                                                 
3   Aug  Aug    -     icmp    4.20.71.50      -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   42:52 42:                                                                                                
         52                                                                                                 
3   Aug  Aug    -     icmp  210.10.163.28     -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   43:15 43:                                                                                                
         15                                                                                                 
3   Aug  Aug    -     icmp  210.11.48.135     -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   43:42 43:                                                                                                
         42                                                                                                 
3   Aug  Aug    -     icmp  210.11.155.199    -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   45:20 45:                                                                                                
         20                                                                                                 
3   Aug  Aug    -     icmp  218.93.255.168    -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   45:25 45:                                                                                                
         25                                                                                                 
3   Aug  Aug    -     icmp  67.65.208.211     -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   46:58 46:                                                                                                
         58                                                                                                 
3   Aug  Aug    -     icmp   210.9.54.56      -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   47:07 47:                                                                                                
         07                                                                                                 
3   Aug  Aug    -     icmp  218.170.188.70    -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   47:10 47:                                                                                                
         10                                                                                                 
3   Aug  Aug    -     icmp   64.230.22.70     -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   47:19 47:                                                                                                
         19                                                                                                 
3   Aug  Aug    -     icmp   67.1.244.205     -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   47:42 47:                                                                                                
         42                                                                                                 
3   Aug  Aug    -     icmp  210.11.131.67     -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   49:46 49:                                                                                                
         46                                                                                                 
3   Aug  Aug    -     icmp  61.213.74.204     -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   49:56 49:                                                                                                
         56                                                                                                 
3   Aug  Aug    -     icmp  144.254.13.70     -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   50:18 50:                                                                                                
         18                                                                                                 
3   Aug  Aug    -     icmp   210.9.235.35     -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   51:30 51:                                                                                                
         30                                                                                                 
3   Aug  Aug    -     icmp  210.10.235.43     -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   52:31 52:                                                                                                
         31                                                                                                 
3   Aug  Aug    -     icmp   4.63.219.221     -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   52:42 52:                                                                                                
         42                                                                                                 
3   Aug  Aug    -     icmp  210.10.230.164    -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   54:43 54:                                                                                                
         43                                                                                                 
3   Aug  Aug    -     icmp  210.11.51.165     -       8      -    210.11.49.74     -      0      -      -   
    21   21                                                                                                 
    06:  06:                                                                                                
   54:44 54:                                                                                                
         44                                                                                                 

fwlogwatch 0.4 ? 2001-08-19 Boris Wesslowski, RUS-CERT


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