show ip protocols

show ip protocols

//该命令查看ip路由协议配置和统计信息

R2#show ip protocols 
Routing Protocol is "rip"
Sending updates every 30 seconds, next due in 10 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Redistributing: rip
Default version control: send version 1, receive 1
  Interface             Send  Recv  Triggered RIP  Key-chain
  Serial1/1             1     1     
  Serial1/2             1     1     
  Serial1/0             1     1     
Automatic network summarization is in effect
Maximum path: 4
Routing for Networks:
	172.16.0.0
	172.31.0.0
Passive Interface(s):
Routing Information Sources:
	Gateway         Distance      Last Update
	172.16.23.3          120      00:00:20
	172.16.24.4          120      00:00:10
	172.31.12.1          120      00:00:14
Distance: (default is 120)