--- ssh_config
+++ ssh_config
@@ -46,7 +46,7 @@
 #   IdentityFile ~/.ssh/id_rsa
 #   IdentityFile ~/.ssh/id_dsa
 #   Port 22
-#   Protocol 2,1
+    Protocol 2
 #   Cipher 3des
 #   Ciphers aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc
 #   EscapeChar ~
--- sshd_config
+++ sshd_config
@@ -11,7 +11,7 @@
 # default value.
 
 #Port 22
-#Protocol 2,1
+Protocol 2
 #AddressFamily any
 #ListenAddress 0.0.0.0
 #ListenAddress ::