1 files changed, 28 insertions, 29 deletions
diff --git a/IP migration API.md b/IP migration API.md
index c6bd91b..d567ab5 100644
--- a/IP migration API.md
+++ b/IP migration API.md
@@ -2,33 +2,7 @@
 tags:
   - work
 ---
-# Previous IP migration API
-Stateful: sqlite db:
-- subnet state (mode: `migrating`)
-- ip state: active location (`CPH|AMS`)
-
-config:
-- LR map file
-- db config
-- tls
-- ip announcement file
-- hosts
-- key
-- user
-IP announcement file.
-
-Flow:
-- Prepare subnet (out-of-band)
-	- Creates a record for the subnet, and puts it in "migrating" mode.
-- Call migrate IP (ip, dest)
-	- Fails if subnet not prepared prior.
-	- Fails if destination not exists.
-	- Fails if invalid ip address
-
-
-# New IP migration API
-
-What is a "link scope"?
+[[GroupVPS Migration]]
 
 API:
 - Prepare subnet : cidr
@@ -51,6 +25,31 @@ Alle stappen moeten reversable zijn.
 stap 2 roze: test vm, routes op os verwijderen, op src net toevoegen
 stap 3 geel: switch network naar openstack, switch gateway ip
 
+# Meeting @ 23 jun 2025
 
-**How ARP works**
-Host A thinks it has direct conn to Host B, thus sends ARP request to learn its MAC.
-\ No newline at end of file
+*cidr/24 subnet scope link maybe monitor for its existence.*
+
+To handle failover the static routes we configure on the tunnel-dst should not have a nexthop, but a nexthop id. This points the route to a virtual nexthop - if it is updated, all routes pointing to that are updated.
+
+`ip route add 192.168.0.1/32 nhid 1`
+
+tunnel-src also just add ip routes
+failover: just periodically cmp route and push diff
+
+![[Pasted image 20250623162525.png]]
+
+
+```
+#!/bin/sh
+
+# Check all /32 for migrated networks
+(ip r; ip -6 r) | grep -E "dev wg. (scope link|metric)" | cut -d ' ' -f1 | grep -v default | sort >/tmp/A
+sort routes-in-dst.txt >/tmp/B
+for X in $(comm -13 /tmp/A /tmp/B); do echo ip route add $X dev wg0; done
+for X in $(comm -23 /tmp/A /tmp/B); do echo ip route del $X dev wg0; done
+
+# Check for missing IPv6 proxy NDP entries
+ip -6 neigh show proxy | cut -d ' ' -f1 | sort >/tmp/A
+grep -F : routes-in-dst.txt | sort >/tmp/B
+for X in $(comm -13 /tmp/A /tmp/B); do echo ip -6 neigh add proxy $X dev vrrp.98; done
+```
+\ No newline at end of file