Specifications

Features in 291-17 17
Version 291-18
C613-10488-00 REV Q
CR00023990 PPP - Two new parameters, ipfilter and ipfragment, are now available for the
create ppp template and set ppp template commands:
create ppp template=ppp-template [ipfilter=NONE|0..999]
[ipfragment=ON|OFf|True|False|Yes|No]
set ppp template=ppp-template [ipfilter=NONE|0..999]
[ipfragment=ON|OFf|True|False|Yes|No]
These parameters are useful when a dynamic IP interface is created over the
dynamic PPP interface. The shortest valid strings are ipfi for ipfilter and ipfr
for ipfragment.
The ipfilter parameter specifies the traffic filter to apply to IP packets
transmitted or received over the dynamic IP interface. The filter must
already have been defined with the add ip filter command. The dynamic
IP interface may have a maximum of one traffic filter but the same traffic
filter can be assigned to more than one interface. Traffic filters are applied
to packets received via the dynamic IP interface. The default is to not apply
a filter.
The ipfragment parameter specifies whether the “Do not fragment” bit is
obeyed for outgoing IP packets that are larger than the MTU of the
interface. If yes, the “Do not fragment” bit is ignored and outgoing IP
packets larger than the MTU of the interface are fragmented. This is
particularly useful for interfaces configured with GRE, SA, or IPsec
encapsulation, which can potentially increase packet sizes beyond the MTU
of the interface. If no, the “Do not fragment” bit is obeyed and IP packets
larger than the MTU are discarded. This is normal behaviour for IP. The
fragment parameter has no effect on packets smaller than the interface
MTU. The default is no.
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CR Module Level Description
AR44x / AR450 AR7x5 AR750S / AR770S Rapier i Rapier w AT-8800 AT-8600 AT-8700XL AT-8948 / x900-48 AT-9900 AT-9800