Kei ia kaihautu whatunga, te teihana mahi, te tūmau ranei tana ake wahitau IP me te kanohi kupengaroto.I te wa e korero ana te kaihautu ki te kaimau, e ai ki tana ake wahitau IP me te kanohi iraroto, tae atu ki te wahitau IP o te tūmau, whakatauhia mehemea kei roto te tūmau i te waahanga whatunga kotahi ki a ia ano:

1. Mena kua whakatauhia kia noho i roto i te waahanga whatunga kotahi, ka kitea e ia te wahitau MAC o tera taha ma te Kawa Whakatau Wāhitau (ARP), ka whakakiia te wahitau MAC o tera atu ki te mara wahitau MAC o te Ethernet. pane anga, ka tuku i te karere ki waho.Ko te whakawhiti-rua-papa e mohio ana ki te whakawhitiwhiti korero;

2. Mena kua whakatauhia kei roto i tetahi waahanga whatunga rereke, ka whakamahi aunoa te kaihautu i te kuaha ki te whakawhitiwhiti korero.I te tuatahi ka kitea e te kaihautu te wahitau MAC o te kuaha kua whakaritea ma roto i te ARP, ka whakakiia te wahitau MAC o te kuaha (ehara i te wahitau MAC o te kaihautu kee, no te mea e whakaaro ana te kaihautu ehara te hoa korero i te kaihautu o te rohe) ki te MAC ūnga wāhitau mara o te pane anga Itarangi , Tukuna te karere ki te kuaha, me te mohio korero i roto i te ararere toru-paparanga.