From 393657ef7c5da0d1fcaac720bfc57c4bee3bf904 Mon Sep 17 00:00:00 2001
From: Dmitry Zuikov <dzuikov@gmail.com>
Date: Fri, 24 Feb 2023 06:40:01 +0300
Subject: [PATCH] devlog

---
 docs/devlog.md | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/docs/devlog.md b/docs/devlog.md
index 24190cbd..7257c580 100644
--- a/docs/devlog.md
+++ b/docs/devlog.md
@@ -1,6 +1,27 @@
 
 ## 2023-02-24
 
+Судя по всему, synthing использует и UPnP и NAT-PMP:
+
+```
+   27 11.934390497 192.168.1.43 → 192.168.1.1  NAT-PMP 44 External Address Request
+   28 11.934604658 192.168.1.43 → 239.255.255.250 SSDP 209 M-SEARCH * HTTP/1.1
+   29 11.934614907 192.168.1.43 → 239.255.255.250 SSDP 209 M-SEARCH * HTTP/1.1
+   30 11.938139707  192.168.1.1 → 192.168.1.43 NAT-PMP 60 External Address Response
+   31 11.988574699  192.168.1.1 → 192.168.1.43 SSDP 484 HTTP/1.1 200 OK
+   32 11.988654078  192.168.1.1 → 192.168.1.43 SSDP 484 HTTP/1.1 200 OK
+   33 22.058958324 192.168.1.43 → 192.168.1.1  NAT-PMP 54 Map TCP Request
+   34 22.094353030  192.168.1.1 → 192.168.1.43 NAT-PMP 60 Map TCP Response
+   35 22.094739134 192.168.1.43 → 192.168.1.1  NAT-PMP 44 External Address Request
+   36 22.097686421  192.168.1.1 → 192.168.1.43 NAT-PMP 60 External Address Response
+   37 30.007466914  192.168.1.1 → 239.255.255.250 SSDP 452 NOTIFY * HTTP/1.1
+   38 30.007466974  192.168.1.1 → 239.255.255.250 SSDP 524 NOTIFY * HTTP/1.1
+   39 30.007508252  192.168.1.1 → 239.255.255.250 SSDP 461 NOTIFY * HTTP/1.1
+```
+
+но оно откуда-то сразу узнает default gateway.
+
+
 Еще про поиск gateway.  Если gateway не откликается на команды PCP, NAT-PMP и UPnP (SSDP)
 то и искать его бессмысленно, нам неважно, где он сидит.