Snort mailing list archives
Re: [!] WARNING: Not IPv4 datagram! - huh?
From: John Sage <jsage () finchhaven com>
Date: Sun, 27 May 2001 14:40:37 -0700
Fyodor: Thanks....I was a little surprised to see this kinda smashed into the middle of the logging output, and not on every packet, but just every now and then.
Is this something that's actually in only *some* of the packets, or something that snort's doing?
- John Fyodor wrote:
05/27-09:19:24.672817 193.0.0.203:80 -> 12.82.128.32:62282 TCP TTL:48 TOS:0x0 ID:12316 IpLen:20 DgmLen:1500 DF ***A**** Seq: 0xE47968E8 Ack: 0xFC7D383B Win: 0x6028 TcpLen: 32 [!] WARNING: Not IPv4 datagram! ([ver: 0x5][len: 0xc561]) [!] WARNING: Not IPv4 datagram! ([ver: 0x5][len: 0xc561]) TCP Options (3) => NOP NOP TS: 34889575 318946608 :that means that it is seeing datagrams with '5' in version field. The datagram size is 0xc561.. :) actually it meant to be headerlength there, but I looked at the code and realized that I messed things up abit ;-) hope it helps. -Fyodor
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Current thread:
- [!] WARNING: Not IPv4 datagram! - huh? John Sage (May 27)
- Re: [!] WARNING: Not IPv4 datagram! - huh? Fyodor (May 27)
- Re: [!] WARNING: Not IPv4 datagram! - huh? John Sage (May 27)
- Re: [!] WARNING: Not IPv4 datagram! - huh? Fyodor (May 27)