diff -Nur e-smith-lib-2.6.0/root/usr/share/perl5/vendor_perl/esmith/ethernet.pm e-smith-lib-2.6.0_bz10445/root/usr/share/perl5/vendor_perl/esmith/ethernet.pm
--- e-smith-lib-2.6.0/root/usr/share/perl5/vendor_perl/esmith/ethernet.pm	2016-02-05 23:44:11.000000000 +0100
+++ e-smith-lib-2.6.0_bz10445/root/usr/share/perl5/vendor_perl/esmith/ethernet.pm	2017-10-23 09:13:54.829348469 +0200
@@ -63,6 +63,8 @@
             -d "/sys/class/net/$nic/bonding" ||
             # skip tun/tap
             -f "/sys/class/net/$nic/tun_flags" ||
+            # skip tap_soft (Eg SoftEther)
+            -d "/sys/class/net/$nic/tap_soft" ||
             # skip dummy
             -d "/sys/devices/virtual/net/$nic"
         );