Watchguard Firebox X1000, Reference Manual

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Reference Guide 77
kernel Problem: block on freelist at xxxxxxxxx isn't free
If you see this log message, contact WatchGuard Technical
Support immediately. A small number of Fireboxes experienced a
manufacturing problem with their power supply, which causes
this symptom.
kernel: Temporarily blocking host x.x.x.x
Indicates that an IP address was dynamically added to the
blocked site list.
Pid(x) exited status 1
Indicates that a process on the Firebox exited normally.
RBCAST: Error sending data on [some interface]: Network is
unreachable
The Firebox has a rebroadcaster service designed to take UDP-
directed broadcast packets from one interface and put them on the
other interfaces. This service is infrequently used. It is enabled
when certain PPTP and MUVPN options are activated.
RBCAST only rebroadcasts directed broadcasts originating on a
primary interface IP address. In other words, secondary networks
will not be the source of an RBCAST. In addition, it will not
rebroadcast to remote interfaces such as PPTP and IPSec
addresses.
RBCAST errors most commonly indicate that your configuration
does not support its use. RBCAST is automatically enabled on
UDP ports 137 and 138 when VPN options are turned on. In
almost all cases, it is safe to ignore these messages.
If you want to obtain more information on this process, open your
configuration file with a text editor. Immediately after the line
that says:
options.proxies.rbcast.ports: 137 138 (might be
additional port numbers)
Insert this line:
options.proxies.rbcast.verbose: ON
If you do not want to see RBCAST messages, use the text editor to
remove the line that says:
options.proxies.rbcast.ports: 137 138
Save this file with the text editor. Open it with Policy Manager,
and save it to the Firebox.