10
Advanced Settings
170
Max GRE Length
Specifies
in
bytes
the
maximum
size
of
a
GRE
packet.
GRE,
Generic
Routing
Encapsulation,
has
various
uses,
including
the
transportation
of
PPTP,
Point
to
Point
Tunneling
Protocol,
data.
This
value
should
be
set
at
the
size
of
the
largest
packet
allowed
to
pass
through
the
VPN
connections,
regardless
of
its
original
protocol,
plus
approximately
50
bytes.
Device:/>
set
Settings
LengthLimSettings
MaxGRELen=2000
Default:
2,000
Max ESP Length
Specifies
in
bytes
the
maximum
size
of
an
ESP
packet.
ESP,
Encapsulation
Security
Payload,
is
used
by
IPsec
where
encryption
is
applied.
This
value
should
be
set
at
the
size
of
the
largest
packet
allowed
to
pass
through
the
VPN
connections,
regardless
of
its
original
protocol,
plus
approximately
50
bytes.
Device:/>
set
Settings
LengthLimSettings
MaxESPLen=2000
Default:
2,000
Max AH Length
Specifies
in
bytes
the
maximum
size
of
an
AH
packet.
AH,
Authentication
Header,
is
used
by
IPsec
where
only
authentication
is
applied.
This
value
should
be
set
at
the
size
of
the
largest
packet
allowed
to
pass
through
the
VPN
connections,
regardless
of
its
original
protocol,
plus
approximately
50
bytes.
Device:/>
set
Settings
LengthLimSettings
MaxAHLen=2000
Default:
2,000
Max SKIP Length
Specifies
in
bytes
the
maximum
size
of
a
SKIP
packet.
Device:/>
set
Settings
LengthLimSettings
MaxSKIPLen=2000
Default:
2,000
MaxOSPF Len
Specifies
the
maximum
size
of
an
OSPF
packet.
OSPF
is
a
routing
protocol
mainly
used
in
larger
LANs.
Device:/>
set
Settings
LengthLimSettings
MaxOSPFLen=1480
Default:
1,480
