Match Host tuulikki.scalene.net exec "ip route |grep -q -E '^(192.168.101.0/24|10.88.0.0/16)'"
  User jswank
  Port 22

Host tuulikki.scalene.net 
  User jswank
  Port 22022

Host tonttu.scalene.net 
  User jswank

Host www.scalene.net
  User scalene
  Port 22022

Host tilde.club
  User eke

Match Host git.scalene.net exec "ip route |grep -q -E '^(192.168.101.0/24|10.88.0.0/16)'"
  User jswank
  Hostname tonttu.scalene.net