平成23年12月27日
DNAT(port forwarding): smtp,imaps, http,https, ssh,openvpn | packet filtering | |||||||||
-----> | ||||||||||
(INTERNET) | -------- | [I.S.P.] | ------------------------- | [NAT Router with MODEM] | --------------- | -----> --------- <----- | [my Server/Router] | --------- | (INSIDE) | |
(ADSL or FIBER) | <----- | (DMZ) | <----- | |||||||
SNAT: through all packet | SNAT: packet filtering |