Hi, sorry about my english.
I'm doing a RIP Lab for some students. The network has three routers (see picture attached) , one of them is Gateway. RIP work's well. I can ping every interface, and the routing table in every MK (1,2,3) is fine, and ADr is in the table, by example:
MKR2
# DST-ADDRESS PREF-SRC GATEWAY DISTANCE
0 ADS 0.0.0.0/0 10.10.1.1 1
1 ADC 10.10.1.0/30 10.10.1.2 ether1 0
2 ADr 10.10.1.4/30 10.10.1.1 120
3 ADC 10.10.1.8/30 10.10.1.10 ether2 0
4 ADr 172.16.0.0/16 10.10.1.1 120
5 ADC 192.168.1.0/24 192.168.1.1 ether3 0
6 ADr 192.168.122.0/24 10.10.1.1
But, when disconnect a one of de interfaces, to prove if reload RIP, the new routing table lost every RIP advertisment and look like this:
MKR2
# DST-ADDRESS PREF-SRC GATEWAY DISTANCE
0 DS 0.0.0.0/0 10.10.1.1 1
1 DC 10.10.1.0/30 10.10.1.2 ether1 255
2 ADC 10.10.1.8/30 10.10.1.10 ether2 0
3 ADC 192.168.1.0/24 192.168.1.1 ether3 0

Can you help me?, I don't know why RIP don't advertisment any more. Again sorry about my english. Regards.