EJ- pip link not working

root@infra1_galera_container-861571ec:~# /usr/local/bin/pip install pycrypto
DEPRECATION: --allow-all-external has been deprecated and will be removed in the future. Due to changes in the repository protocol, it no longer has any effect.
Ignoring indexes: https://pypi.python.org/simple
Collecting pycrypto
  Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.HTTPConnection object at 0x7fc5d23f6150>: Failed to establish a new connection: [Errno 113] No route to host',)': /os-releases/12.0.13/
  Retrying (Retry(total=3, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.HTTPConnection object at 0x7fc5d23f62d0>: Failed to establish a new connection: [Errno 113] No route to host',)': /os-releases/12.0.13/
  Retrying (Retry(total=2, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.HTTPConnection object at 0x7fc5d23f6450>: Failed to establish a new connection: [Errno 113] No route to host',)': /os-releases/12.0.13/
  Retrying (Retry(total=1, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.HTTPConnection object at 0x7fc5d23f65d0>: Failed to establish a new connection: [Errno 113] No route to host',)': /os-releases/12.0.13/
  Retrying (Retry(total=0, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.HTTPConnection object at 0x7fc5d23f6750>: Failed to establish a new connection: [Errno 113] No route to host',)': /os-releases/12.0.13/
  Could not find a version that satisfies the requirement pycrypto (from versions: )
No matching distribution found for pycrypto
root@infra1_galera_container-861571ec:~# cat .pip/pip.conf
[global]
no-index = True
pre = True
timeout = 120
trusted-host =
        192.168.20.31

[install]
upgrade = True
allow_all_external = True
find-links =
        http://192.168.20.31:8181/os-releases/12.0.13/