diff --git a/ChangeLog b/ChangeLog
index 8d8d39a9..251f3aa9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -10,6 +10,7 @@ version 3.35 ()
 
   * #180 support CiscoConfig on Nexus (sf.net:scratchfury)
   * #50 remove interface specific part from vrf interfaces on IOS (W. Vandersmissen)
+  * #211 f5 class should respect UseEnums when faking i_type
 
 version 3.34 (2016-11-20)
 
diff --git a/Info/Layer3/F5.pm b/Info/Layer3/F5.pm
index d18f8b67..67ff0a88 100644
--- a/Info/Layer3/F5.pm
+++ b/Info/Layer3/F5.pm
@@ -165,8 +165,9 @@ sub i_type {
 
     my %i_type;
     foreach my $if ( keys %$idx ) {
-
-        $i_type{$if} = 'ethernetCsmacd';
+        $i_type{$if} =
+          ((exists $f5->{sess}->{UseEnums} and $f5->{sess}->{UseEnums})
+           ? 'ethernetCsmacd' : 6 );
     }
     return \%i_type;
 }