From e875c6a25d48ca9d5b58bf1577a40b572fcfca26 Mon Sep 17 00:00:00 2001 From: Jet Hughes Date: Thu, 22 Sep 2022 22:35:33 +1200 Subject: [PATCH] vault backup: 2022-09-22 22:35:33 --- content/notes/cosc203-lab20.md | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) diff --git a/content/notes/cosc203-lab20.md b/content/notes/cosc203-lab20.md index 04df13a1a..15ac65ea0 100644 --- a/content/notes/cosc203-lab20.md +++ b/content/notes/cosc203-lab20.md @@ -24,4 +24,31 @@ tags: ![](https://i.imgur.com/In1iX3w.png) 4. the source port of the first message is the destination port of the second and the destination port of the first is the destination port of the second -5. + + + +![](https://i.imgur.com/V4GKJA5.png) + +5. source port 61958, ip 10.112.120.171, +6. cosc ip is 10.66.8.42, using port 80 + + +7. syn + 1. seq number: 0 ![](https://i.imgur.com/8yF20dZ.png) + + 2. idetified by the syn flag ![](https://i.imgur.com/rkw0BMu.png) + +8. syn ack + 1. seq num: 0 ![](https://i.imgur.com/5sdwweq.png) + + 2. value of ack field: 1 ![](https://i.imgur.com/mrvWNks.png) + 3. how did cosc get this value? not sure + 4. identified by flag field ![](https://i.imgur.com/WJmm8Ra.png) + +9. get [](https://i.imgur.com/LZOuVK9.png) + 1. seq num: 1 + +10. ack segments + 1. rtt average 4ms + 2. numbers + 1. \ No newline at end of file