X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=extras%2Fvpp_config%2Fvpplib%2FAutoConfig.py;h=8c052a0277368f9bef159ce96c8cd50e9762c9b8;hb=582eac5c30e78f65ba0127aed2cb7442f4122fd2;hp=c4777104c0bc8608deb66ac9168f02a6f6b07df2;hpb=c17d6cfaf4fc66927f28af9d8d7cb8ce2a1d839c;p=vpp.git

diff --git a/extras/vpp_config/vpplib/AutoConfig.py b/extras/vpp_config/vpplib/AutoConfig.py
index c4777104c0b..8c052a02773 100644
--- a/extras/vpp_config/vpplib/AutoConfig.py
+++ b/extras/vpp_config/vpplib/AutoConfig.py
@@ -122,7 +122,7 @@ class AutoConfig(object):
                     answer = input("Please enter the netmask [n.n.n.n]: ")
                     plen = ip_address(answer).netmask_bits()
                 return '{}/{}'.format(ipaddr, plen)
-            except None:
+            except ValueError:
                 print("Please enter a valid IPv4 address.")
 
     @staticmethod