3 files changed, 12 insertions, 2 deletions
diff --git a/lib/oxidized/input/input.rb b/lib/oxidized/input/input.rb
index a7fb16d..da8ff5d 100644
--- a/lib/oxidized/input/input.rb
+++ b/lib/oxidized/input/input.rb
@@ -1,4 +1,5 @@
 module Oxidized
+  class PromptUndetect < OxidizedError; end
   class Input
     include Oxidized::Config::Vars
 
@@ -8,6 +9,7 @@ module Oxidized
       ],
       :warn => [
         IOError,
+        PromptUndetect,
         Timeout::Error,
         Errno::ECONNRESET,
         Errno::EHOSTUNREACH,
diff --git a/lib/oxidized/input/ssh.rb b/lib/oxidized/input/ssh.rb
index 62a31eb..ec33d37 100644
--- a/lib/oxidized/input/ssh.rb
+++ b/lib/oxidized/input/ssh.rb
@@ -26,7 +26,11 @@ module Oxidized
                             :paranoid => secure
       unless @exec
         shell_open @ssh
-        @username ? shell_login : expect(@node.prompt)
+        begin
+          @username ? shell_login : expect(@node.prompt)
+        rescue Timeout::Error
+          raise PromptUndetect, [ @output, 'not matching configured prompt', @node.prompt ].join(' ')
+        end
       end
       connected?
     end
diff --git a/lib/oxidized/input/telnet.rb b/lib/oxidized/input/telnet.rb
index 62f361e..13fccf7 100644
--- a/lib/oxidized/input/telnet.rb
+++ b/lib/oxidized/input/telnet.rb
@@ -20,7 +20,11 @@ module Oxidized
       @telnet.puts @node.auth[:username]
       expect password
       @telnet.puts @node.auth[:password]
-      expect @node.prompt
+      begin
+        expect @node.prompt
+      rescue Timeout::Error
+        raise PromptUndetect, [ 'unable to detect prompt:', @node.prompt ].join(' ')
+      end
     end
 
     def connected?