# Strange Packet (invert ip) **URL:** \ **Category:** Zeek\ **Created:** [September 19, 2004, 9:24pm UTC](https://community.zeek.org/t/strange-packet-invert-ip/585 "2004-09-19T21:24:19Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Vern](https://yyz1.discourse-cdn.com/flex011/user_avatar/community.zeek.org/vern/32/630_2.png) [@Vern](https://community.zeek.org/u/Vern)\ **Post date:** [September 19, 2004, 9:24pm UTC](https://community.zeek.org/t/strange-packet-invert-ip/585/1 "2004-09-19T21:24:19Z")
> 1095628174.157851 IP (tos 0x0, ttl 117, id 62764, offset 0, flags [none], > length: 40) 211.91.135.39.80 \> x.x.x.x.52510: S [tcp sum ok] > 3738538976:3738538996(20) a > ck 1775556062 win 8760 > > but bro09a5, event this : > > 1095628174.157850 WeirdActivity > bad\_TCP\_header\_len x.x.x.x/52510 \> 211.91.135.39/80 Note, these two have \*different\* timestamps, which means they refer to different packets.     Vern ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/zeek/original/1X/f09d732bc2cc7c7cc7e35db67cf4e1d5233ce7a7.png) [@system](https://community.zeek.org/u/system)\ **Post date:** [May 6, 2022, 3:37pm UTC](https://community.zeek.org/t/strange-packet-invert-ip/585/2 "2022-05-06T15:37:09Z")