Configuring IP passthrough Configure IP passthrough
Digi TransPort® Routers User Guide
564
When Fixed IP/32 bit mask mode of operation is selected, the DHCP server provides a 32-bit
subnet mask to the client and sets the address/subnet mask for the Ethernet interface to
192.168.1.1/32.
DHCP Lease Time
The length, in minutes, of the leases issued by this DHCP server.
Pinhole Configuration
These parameters exclude specific protocols from the IP passthrough feature. An excluded
protocol terminates at the router instead of being forwarded to the local PC.
HTTP
Excludes HTTP from passthrough.
HTTPS
Excludes HTTPS from passthrough.
Telnet
Excludes Telnet from passthrough.
Telnet over SSL
Excludes SSL from passthrough.
SSH/SFTP
Excludes SSH/SFTP from passthrough.
SNMP
Excludes SNMP from passthrough.
GRE
Excludes GRE from passthrough.
Ping
Excludes the ICMP echo request from passthrough.
Other Ports
The list of TCP and UDP port numbers in this text box are added to the list of port numbers
that are not forwarded to the local PC. Separate port numbers by commas.
Other Protocols
The list of protocol numbers in this text box are added to the list of port numbers that are not
forwarded on to the local PC. Separate port numbers by commas.
3. Click Apply.
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