Monitoring and Managing Your ELS100-16TX4-11For example, enable 7-9 would enable ports 7, 8, and 9.LCM responds:noRIP OptionThe Routing Information Protocol (RIP) is one of the protocols thatallows the ELS100-16TX to build an accurate, current routing table.This table includes the networks it knows about, the next hop, andthe number of hops to get there. RIP enables you to use an NMS toremotely manage the ELS100-16TX through a router.The noRIP option allows you to turn off the routing informationthat builds the routing table. You would use this option when youare connecting network devices that do not support RIP.4.5.3 Changing a Subnet MaskYou can optionally set the subnet mask for a port. A subnet mask isa 32-bit address mask used in IP to specify a particular subnet. Ifthe subnet mask is 0.0.0.0, the ELS100-16TX automatically convertsthe displayed mask to the standard default, based on the port’s IPaddress class. (Class A address masks are 255.0.0.0, Class B addressmasks are 255.255.0.0, Class C address masks are 255.255.255.0.)To display IP addresses, subnet masks, and MAC addresses of allports on the ELS100-16TX you are managing, at the LCM prompt:1. Type ipaddrNote:Rip listening means that the ELS100-16TX is in listeningmode only. No RIP packets are created.Port 7: Enabled, Rip listeningPort 8: Enabled, Rip listeningPort 9: Enabled, Rip listening