From 0d481030f3b4629a4d672b0c36650e964390ffc1 Mon Sep 17 00:00:00 2001
From: Brad Fitzpatrick <bradfitz@tailscale.com>
Date: Tue, 7 Jul 2020 18:54:41 -0700
Subject: [PATCH] tailcfg: use ? for portmap summary to match netcheck

---
 tailcfg/tailcfg.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tailcfg/tailcfg.go b/tailcfg/tailcfg.go
index 626cd4347..a83bbabc4 100644
--- a/tailcfg/tailcfg.go
+++ b/tailcfg/tailcfg.go
@@ -359,7 +359,7 @@ func (ni *NetInfo) String() string {
 
 func (ni *NetInfo) portMapSummary() string {
 	if ni.UPnP == "" && ni.PMP == "" && ni.PCP == "" {
-		return "na"
+		return "?"
 	}
 	return conciseOptBool(ni.UPnP, "U") + conciseOptBool(ni.PMP, "M") + conciseOptBool(ni.PCP, "C")
 }