From 6866d547471edff7cf7b9a6e1684d9423c3ad9e8 Mon Sep 17 00:00:00 2001 From: Tizian Maxime Weigt Date: Thu, 29 May 2025 23:46:27 +0000 Subject: [PATCH] README.md aktualisiert --- README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/README.md b/README.md index 35498c2..f785391 100644 --- a/README.md +++ b/README.md @@ -1,6 +1,6 @@ # TCP lengths and flags -| Flag Combination | Flags Set (Hex) | Purpose | IP+TCP Payload Size | Ethernet Frame Size | XDP Filtering Logic | +| Flag Combination | Flags Set (Hex) | Purpose | IP+TCP Payload Size | Ethernet Frame Size (what XDP will see) | XDP Filtering Logic | |------------------|-----------------|---------|---------------------|---------------------|---------------------| | SYN | 0x02 | Initiates connection | 40–59 bytes | 64–77 bytes | Rate limit SYN packets per source IP to prevent floods. Drop if rate exceeds threshold. SynProxy | | SYN-ACK | 0x12 | Acknowledges SYN | 40–59 bytes | 64–77 bytes | Validate against recent SYN requests using eBPF maps. Drop if no matching SYN. |