Series, the range is 1 to 128. For the E-Series, the range is 1 to 
255 for TeraScale and 1 to 512 for ExaScale.
• For a SONET interface, enter the keyword sonet followed by 
the slot/port information.
• For a 10-Gigabit Ethernet interface, enter the keyword 
TenGigabitEthernet followed by the slot/port 
information.
• For a 40-Gigabit Ethernet interface, enter the keyword 
fortyGigE followed by the slot/port information.
• For a VLAN, enter the keyword vlan followed by a number 
from 1 to 4094.
connected (OPTIONAL) Enter the keyword connected to filter only directly 
connected routes.
isis (OPTIONAL) Enter the keyword isis to filter only IS-IS routes.
NOTE: This option is only available on E-Series.
ospf (OPTIONAL) Enter the keyword ospf to filter all OSPF routes.
static (OPTIONAL) Enter the keyword static to filter manually configured 
routes.
Defaults Not configured.
Command Modes ROUTER RIP
Command History
Version 8.3.11.1 Introduced on the Z9000.
Version 8.5.1.0 Added support for 4-port 40G line cards on ExaScale.
Version 8.3.7.0 Introduced on the S4810.
Version 7.8.1.0 Introduced on the S-Series.
Version 7.6.1.0 Introduced on the C-Series.
pre-Version 
6.2.1.1
Introduced on the E-Series.
Related 
Commands
ip prefix-list – enters PREFIX-LIST mode and configures a prefix list.
ip poison-reverse
Set the prefix of the RIP routing updates to the RIP infinity value.
C-Series, E-Series, S-Series, Z-Series, S4810
Syntax
ip poison-reverse
To disable poison reverse, use the no ip poison-reverse command.
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