[Zeek] Absolute ack and seq number of tcp packet

Jon Siwek jsiwek at corelight.com
Mon Dec 2 10:26:56 PST 2019


On Thu, Nov 28, 2019 at 11:38 AM Hui Lin (Hugo) <hlin33 at illinois.edu> wrote:

> In the tcp_packet event, how can I obtain the absolute values (found in the tcp header), not the relative values of ack and seq numbers.

The `get_current_packet_header()` BIF likely works for you:

https://docs.zeek.org/en/stable/scripts/base/bif/zeek.bif.zeek.html#id-get_current_packet_header

Or else the `raw_packet` event is also something that uses the
`raw_pkt_hdr` type which should have the absolute sequence numbers.

- Jon


More information about the Zeek mailing list