(Prisma Agent 26.4.3 and later, Windows and macOS only)
Calculates the PMTU that the agent would set for a specific IPv4
address, such as a gateway IP address. Enter pacli pmtu
<ipv4_address>. You don't need a connected
tunnel or any configuration to use this command, and IPv6 addresses
aren't supported. If the agent isn't tracking the IP address yet,
the command starts discovery for it. The command shows the following
values:- MSS-based PMTU—The PMTU calculated
from the TCP MSS of a connection to the IP address
- ICMP-discovered PMTU—The PMTU found
by sending ICMP probes of different sizes
- OS PMTU cache—The Windows PMTU cache
value for the IP address, which shows
N/A on macOS
The output can include the following special values: - Calculating—Discovery is still
running. For ICMP, the output also shows the probe size
being tested.
- N/A (connection failed)—MSS discovery
found no value.
- not found in cache—Windows has no
entry for the IP address.
- rerun in a few seconds—Discovery
didn't finish within 10 seconds, so run the command
again.
The command checks every 500 milliseconds for up to 10
seconds and updates the output in place. |