Справочник Пользователя для Netopia PN Series

The time-to-live (TTL) value for each Ping packet sent by the Netopia 
Router is 255, the maximum allowed. The TTL value defines the 
number of IP routers that the packet can traverse. Ping packets that 
reach their TTL value are dropped, and a “destination unreachable” 
notification is returned to the sender (see the table above). This 
ensures that no infinite routing loops occur. The TTL value can be 
set and retrieved using the SNMP MIB-II ip group’s ipDefaultTTL 
object.

You can count the number of routers between your Netopia Router 
and a given destination with the Trace Route utility.

Select Trace Route in the Statistics, Utilities, Tests screen and 
press Return to go to the Trace Route screen.

Trace Route

         Host Name or IP Address:

         Maximum Hops:                      30

         Timeout (seconds):                 5

         Use Reverse DNS:                   Yes

START TRACE ROUTE

Trace route to a network host.

To trace a route, follow these steps:

1.

Select Host Name or IP Address and enter the name or 
address of the destination you want to trace.

2.

Select Maximum hops (1..64) to set the maximum number of 
routers to count between the Netopia Router and the 
destination router, up to 64. The default is 30 hops.