View network interface status
Digi TransPort User Guide 733
View the IP hash table
The router uses a routing hash table to improve IPv4 routing performance by reducing route
lookup times.
The IP Hash Table contains information on recently routed IP packets such as source and
destination IP address, IP protocol, etc, plus information on the interface and gateway used when
routing the IP packet.
When the router receives an IP packet to route, it looks in the IP hash table before looking in the
IPv4 routing table.
Whenever the IPv4 routing table changes (such as a route is added, deleted or modified), all
entries in the IP hash table are flushed out.
The IP hash table can be flushed manually using the Flush button.
Entries in the IP hash table are automatically deleted if it is not used for 10 seconds.
Src IP Address
The source IP address of the routed IP packet.
Src Port
The source TCP/UDP port of the routed IP packet. If the IP protocol is not TCP or UDP, then this
field is 0.
Destination IP Address
The destination IP address of the routed IP packet.
Dest Port
The destination TCP/UDP port of the routed IP packet. If the IP protocol is not TCP or UDP, this
field is 0.
Next Hop
The next hop gateway to which the routed IP packet was sent to.
IP Protocol
The IP protocol field in the routed IP packet.
Interface
The interface that was used when the IP packet was routed.
Age
The age, in seconds, of the entry in the IP hash table.
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