Host 10.140.248.7 si-bpc-i-dep002 si-bpc-i-dep002.bpc-mgmt.bgn bjh
  User lze8fe
  Hostname 192.168.239.128
  Port 2222

Host s-a-0000007.bpc-mgmt.bgn
    User                    git
    ProxyCommand            ssh bjh nc %h %p