[Snort-users] port scan question

tony cowling tonycowling at ...3945...
Mon Feb 14 20:46:08 EST 2005


 Is  there a normal level of port scan traffic on a network?

This is an example I have with 192.168.0.0 255.255.255.0 home network

And 192.168.1.0 255.255.255.0 being a connected network via vpn.

Should I be concerned?

 

[**] (portscan) TCP Portsweep [**]

02/14-15:25:50.360513 192.168.1.82 -> 192.168.0.12

PROTO255 TTL:0 TOS:0x0 ID:49200 IpLen:20 DgmLen:173

50 72 69 6F 72 69 74 79 20 43 6F 75 6E 74 3A 20  Priority Count: 

35 0A 43 6F 6E 6E 65 63 74 69 6F 6E 20 43 6F 75  5.Connection Cou

6E 74 3A 20 32 0A 49 50 20 43 6F 75 6E 74 3A 20  nt: 2.IP Count: 

35 0A 53 63 61 6E 6E 65 64 20 49 50 20 52 61 6E  5.Scanned IP Ran

67 65 3A 20 31 39 32 2E 31 36 38 2E 30 2E 35 3A  ge: 192.168.0.5:

31 39 32 2E 31 36 38 2E 30 2E 31 32 0A 50 6F 72  192.168.0.12.Por

74 2F 50 72 6F 74 6F 20 43 6F 75 6E 74 3A 20 36  t/Proto Count: 6

0A 50 6F 72 74 2F 50 72 6F 74 6F 20 52 61 6E 67  .Port/Proto Rang

65 3A 20 38 30 3A 31 30 32 36 0A                 e: 80:1026.

 

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