ZyXEL p-2302rl-p1 Guia Do Utilizador
P2302RL-P1 Support Notes
All contents Copyright
2007 ZyXEL Communications Corporation.
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What can we do with the ZyXEL Device?
Browse the World Wide Web (WWW), send and receive individual e-mail, and download software. These are
just a few of many benefits you can enjoy when you put the whole office on-line with the ZyXEL Device
Internet Access Sharing Router.
Internet Access Sharing Router.
Does the ZyXEL Device support dynamic IP addressing?
The ZyXEL Device supports either a static or dynamic IP address from ISP.
What is the difference between the internal IP and the real IP from my ISP?
Internal IPs is sometimes referred to as virtual IPs. They are a group of up to 255 IPs that are used and
recognized internally on the local area network. They are not intended to be recognized on the Internet. The real
IP from ISP, instead, can be recognized or pinged by another real IP. The ZyXEL Device Internet Access
Sharing Router works like an intelligent router that route between the virtual IP and the real IP.
Sharing Router works like an intelligent router that route between the virtual IP and the real IP.
How does e-mail work through the ZyXEL Device?
It depends on what kind of IP you have: Static or Dynamic. If your company has a domain name, it means that
you have a static IP address. Suppose your company's e-mail address is xxx@mycompany.com. Joe and Debbie
will be able to send e-mail through the ZyXEL Device Internet Access Sharing Router using
will be able to send e-mail through the ZyXEL Device Internet Access Sharing Router using
jane@mycompany.com and debbie@mycompany.com respectively as their e-mail addresses. They will be able
to retrieve their individual private and secure e-mail, if they have been assigned the proper access right.
to retrieve their individual private and secure e-mail, if they have been assigned the proper access right.
If your company does not have a domain name, it means that your ISP provides you with a dynamic IP address.
Suppose your company's e-mail address is mycompany@ispname.com. Jane and John will be able to send
e-mail through The ZyXEL Device Internet Access Sharing Router using "jane"<mycompany@ispname.com>
and "john"<mycompany@ispname.com> respectively as their e-mail addresses. Again, they will be able to
retrieve their individual private and secured e-mail, if they have been assigned the proper access right.
and "john"<mycompany@ispname.com> respectively as their e-mail addresses. Again, they will be able to
retrieve their individual private and secured e-mail, if they have been assigned the proper access right.
What is the difference between the 'Standard' and 'RoadRunner' service?
The US
Road Runner
service requires the user to "log in" to the service before it can send any packets to the
outside network. This is apparently implemented in the TAS (Toshiba Authentication System) with a packet
filtering firewall in the upstream direction. Before login, one can send ICMP packets (e.g., ping) to the outside
Internet, but nearly all other upstream TCP and UDP packets are blocked. The user can only speak to the local
DNS/login server. Downstream packets do not appear to be filtered or blocked at any time.
filtering firewall in the upstream direction. Before login, one can send ICMP packets (e.g., ping) to the outside
Internet, but nearly all other upstream TCP and UDP packets are blocked. The user can only speak to the local
DNS/login server. Downstream packets do not appear to be filtered or blocked at any time.