Alcatel-Lucent 7450 Configuration Manual page 187

Parameters
mss-value — The TCP MSS value that should be used in the TCP SYN packet during the three-way
urpf-check
Syntax [no] urpf-check
Context config>router>if
config>router>if>ipv6
Description
This command enables unicast RPF (uRPF) Check on this interface.
The no form of the command disables unicast RPF (uRPF) Check on this interface.
Default disabled
mode
Syntax mode {strict | loose | strict-no-ecmp}
no mode
Context config>router>if>urpf-check
config>router>if>>ipv6>urpf-check
Description
This command specifies the mode of unicast RPF check.
The no form of the command reverts to the default (strict) mode.
Default strict
Parameters strict — When specified, uRPF checks whether incoming packet has a source address that matches a
loose — In loose mode, uRPF checks whether incoming packet has source address with a
strict-no-ecmp — When a packet is received on an interface in this mode and the SA matches an
mh-primary-interface
Syntax [no] mh-primary-interface
Context config>router
7450 ESS Router Configuration Guide
handshake negotiation of a TCP connection.
Note: 9158 = max-IP_MTU (9198)-40
Values
536 - 9158 (IPv4)
1220 - 9138 (IPv6)
prefix in the routing table, and whether the interface expects to receive a packet with this source
address prefix.
corresponding prefix in the routing table. However, the loose mode does not check whether the
interface expects to receive a packet with a specific source address prefix. This object is valid
only when urpf-check is enabled.
ECMP route the packet is dropped by uRPF.
IP Router Configuration
Page 187