3Com S7906E Command Reference Manual page 1938

Parameters
time-range
time-range-name
vpn-instance
vpn-instance-name
If the protocol argument is set to tcp or udp, you may define the parameters in the following table.
Function
Specifies the time range in
which the rule can take effect.
Specifies a VPN instance.
1-14
Description
The time-range-name argument
comprises 1 to 32 characters. It is
case insensitive and must start with
an English letter. To avoid confusion,
this name cannot be all.
The vpn-instance-name argument is
a case-sensitive string of 1 to 31
characters.
Without this combination, the rule
applies to only non-VPN packets.