cumulus@cumulus:~$ sudo ifconfig swp1 10.1.2.1/24
 cumulus@cumulus:~$ sudo ifconfig swp1 up
 cumulus@cumulus:~$ sudo vtysh
 
 Hello, this is FRRouting (version 3.1+cl3u1).
 Copyright 1996-2005 Kunihiro Ishiguro, et al.
 
 cumulus# conf t
 cumulus(config)# host CSW01
 CSW01(config)# router 
 babel Make Babel instance command
 bgp BGP information
 eigrp Start EIGRP configuration
 isis ISO IS-IS
 ospf Start OSPF configuration
 ospf6 Open Shortest Path First (OSPF) for IPv6
 rip RIP
 ripng RIPng
 CSW01(config)# router ei 123
 CSW01(config-router)# network 10.1.2.0/24
 CSW01(config-router)# end
 CSW01# show ip eigrp neighbors 
 
 EIGRP neighbors for AS(123)
 
 H Address Interface Hold Uptime SRTT RTO Q Seq 
 (sec) (ms) Cnt Num 
 0 10.1.2.2 swp1 10 0 0 2 0 2