Subnet mask
RIPv2 and EIGRP
yes
RIPv2 sends subnetmasks in the routing table updates. RIPv1 does not, which causes it be class-full.
# no auto-summary
15
RIPv1 RIPv2
*route metric
If you have two routers set up, one running RIPv1 and one running RIPv2, neither router will accept updates from the other. R1: (RIPv1) RIP: ignored v2 packet from 192.168.1.2 (illegal version) R2: (RIPv2) RIP: ignored v1 packet from 192.168.1.1 (illegal version)
A 192.168.0.0/16 network
RIPv2
subnet mask