• At least one of TLS 1.3, TLS 1.2, and TLS1.1 must be enabled.
DNS Tab
DNS
Item
Description
DNS Method
Select whether to specify domain name servers manually or receive DNS
information from the network automatically. When set to [Auto-Obtain
(DHCP)], [Primary DNS Server], [Secondary DNS Server], and [Domain
Name] below become unavailable.
Primary DNS Server
Enter the IPv4 address of the primary DNS.
Secondary DNS Server Enter the IPv4 address of the secondary DNS.
Domain Name
Enter the IPv4 domain name for the machine. Can contain up to 32
characters.
IPv6 DNS Method
Select whether to specify the domain server manually or have the machine
obtain its DNS information automatically.
When set to [Auto-Obtain (DHCP)], [Primary IPv6 DNS Server],
[Secondary IPv6 DNS Server], and [IPv6 Domain Name] below become
unavailable.
Primary IPv6 DNS
Server
Enter the IPv6 address of the primary IPv6 DNS server. Can contain up to
39 characters.
Secondary IPv6 DNS
Server
Enter the IPv6 address of the secondary IPv6 DNS server. Can contain up
to 39 characters.
IPv6 Domain Name
Enter the IPv6 domain name of the machine. Can contain up to 32
characters.
DNS Resolve Priority
Select whether to give priority to IPv4 or IPv6 for DNS name resolution.
DNS Timeout (seconds) Enter the number of seconds the machine waits before considering a DNS
request to have timed out (1 to 999 seconds).
Host Name
Enter a host name for the machine. Can contain up to 15 characters.
Configuring the Network Settings
299
Summary of Contents for M C251FW
Page 2: ......
Page 23: ...3 2 1 ECC105 Interior ECC106 4 3 2 1 Guide to Components 21 ...
Page 45: ...Deleting characters 1 Press to delete characters Entering Characters 43 ...
Page 48: ...1 Guide to the Machine 46 ...
Page 82: ...2 Paper Specifications and Adding Paper 80 ...
Page 100: ...3 Printing Documents 98 ...
Page 124: ...4 Copying Originals 122 ...
Page 170: ...5 Scanning Originals 168 ...
Page 216: ...6 Sending and Receiving a Fax 214 ...
Page 270: ...7 Configuring the Machine Using the Control Panel 268 ...
Page 346: ...6 Close the ADF cover 9 Maintaining the Machine 344 ...
Page 360: ...Main unit DUE292 1 3 2 1 DUE288 2 DUE289 10 Troubleshooting 358 ...
Page 361: ...3 DUE290 Waste toner bottle ECC168 Paper feed unit DUE320 1 Removing Paper Jams 359 ...
Page 440: ...12 Appendix 438 ...
Page 445: ...MEMO 443 ...
Page 446: ...MEMO 444 EN GB EN US EN AU M0EQ 8504A ...
Page 447: ......
Page 448: ...EN GB EN US EN AU M0EQ 8504A 2021 2022 Ricoh Co Ltd ...