anchor.diff:  `192.168.1.101`, and `192.168.1.102`:
   +
   ----
  -$ oc patch hostsubnet node1 -p \
  +$ oc patch hostsubnet node1 --type=merge -p \
     '{"egressIPs": ["192.168.1.100", "192.168.1.101", "192.168.1.102"]}'
   ----
   
  
positive.code: as many IPs as you want to assign to that node host:
  +
  ----
  $ oc patch hostsubnet <node_name> -p \ <1>
    '{
      "egressIPs": [ <2>
        "<ip_address_1>",
  
negative.code: `192.168.1.100`:
  +
  ----
  $ oc patch netnamespace project1 --type=merge \
    -p '{"egressIPs": ["192.168.1.100"]}'
  ----
  +
  You can set `egressIPs` to two or more IP addresses on different nodes to
  