1 files changed, 3 insertions, 1 deletions

diff --git a/dht/vnet/build.sh b/dht/vnet/build.sh
index 5354969a..7f7787f0 100755
--- a/dht/vnet/build.sh
+++ b/dht/vnet/build.sh
@@ -72,7 +72,9 @@ buildtaps() {
 
 buildtaps
 
-num=$(ip addr show wlan0 | sed -n '/\s\+inet 192/ s/\s\+inet 192\.168\.[0-9]*\.\([0-9]*\).*$/\1/ p')
+iface=$(ip route | awk '/^default/{ if ($4 == "dev") print($5); }')
+iface=${iface:-wlan0}
+num=$(ip addr show $iface | sed -n '/\s\+inet 192/ s/\s\+inet 192\.168\.[0-9]*\.\([0-9]*\).*$/\1/ p')
 num=${num:-88}
 
 ip addr add 80.$num.99.99 dev ep0