1.1 --- a/tools/examples/vif-common.sh	Mon Nov 14 12:12:29 2005 +0100
     1.2 +++ b/tools/examples/vif-common.sh	Mon Nov 14 12:28:47 2005 +0100
     1.3 @@ -76,7 +76,11 @@ function frob_iptable()
     1.4  #
     1.5  function handle_iptable()
     1.6  {
     1.7 -  if ! which iptables >&/dev/null
     1.8 +  # Check for a working iptables installation.  Checking for the iptables
     1.9 +  # binary is not sufficient, because the user may not have the appropriate
    1.10 +  # modules installed.  If iptables is not working, then there's no need to do
    1.11 +  # anything with it, so we can just return.
    1.12 +  if ! iptables -L >&/dev/null
    1.13    then
    1.14      return
    1.15    fi