Epson ES-C380W User Manual page 237

Administrator Information
Divisions
Proxy server
information
Port number
information
IP Address Assignment
These are the following types of IP address assignment.
Static IP address:
Assign the predetermined IP address to the scanner (host) manually.
The information to connect to the network (subnet mask, default gateway, DNS server and so on) need to be set
manually.
The IP address does not change even when the device is turned off, so this is useful when you want to manage
devices with an environment where you cannot change the IP address or you want to manage devices using the IP
address. We recommend settings to the scanner, server, etc. that many computers access. Also, when using security
features such as IPsec / IP filtering, assign a fixed IP address so that the IP address does not change.
Automatic assignment by using DHCP function (dynamic IP address):
Assign the IP address automatically to the scanner (host) by using the DHCP function of the DHCP server or
router.
The information to connect to the network (subnet mask, default gateway, DNS server and so on) is set
automatically, so you can easily connect the device to the network.
If the device or the router is turned off, or depending on the DHCP server settings, IP address may change when
re-connecting.
We recommend managing devices other than the IP address and communicating with protocols that can follow
the IP address.
Note:
When you use the IP address reservation function of the DHCP, you can assign the same IP address to the devices at any
time.
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Connecting the Scanner to the Network
Items Note
❏ Proxy server name
Set this when your network environment uses the proxy server to
access the internet from the intranet, and you use the function that
the scanner directly accesses to the internet.
For the following functions, the scanner directly connects to the
internet .
❏ Epson Connect Services
❏ Cloud services of other companies
❏ Firmware updating
❏ Sending scanned images to SharePoint(WebDAV)
❏ Port number to
Check the port number used by the scanner and computer, then
release release the port that is blocked by a firewall, if necessary.
See the following for the port number used by the scanner.
"Using Port for the Scanner" on page 283
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Before Making Network Connection
237