From dfbde3d3aaedbe04510d780d071a200004bd53fe Mon Sep 17 00:00:00 2001
From: David Anderson <danderson@tailscale.com>
Date: Tue, 1 Dec 2020 20:08:55 -0800
Subject: [PATCH] ipn: pass through the prefix length from control.

Control sets this to /32 for IPv4 and /128 for IPv6.

Signed-off-by: David Anderson <danderson@tailscale.com>
---
 ipn/local.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ipn/local.go b/ipn/local.go
index a27384224..c17a0a8b6 100644
--- a/ipn/local.go
+++ b/ipn/local.go
@@ -1257,7 +1257,7 @@ func routerConfig(cfg *wgcfg.Config, prefs *Prefs) *router.Config {
 	for _, addr := range cfg.Addresses {
 		addrs = append(addrs, wgcfg.CIDR{
 			IP:   addr.IP,
-			Mask: 32,
+			Mask: addr.Mask,
 		})
 	}