fping -g 172.30.128.0/24 这个命令的返回结果问题

Question

172.30.128.97 is alive172.30.128.98 is alive172.30.128.99 is alive172.30.128.100 is alive172.30.128.101 is alive172.30.128.102 is alive172.30.128.111 is alive172.30.128.112 is alive172.30.128.113 is alive172.30.128.114 is alive172.30.128.115 is alive172.30.128.116 is alive172.30.128.117 is alive [<- 172.30.130.250]172.30.128.118 is alive [<- 172.30.130.250]172.30.128.119 is alive [<- 172.30.130.250]172.30.128.120 is alive [<- 172.30.130.250]172.30.128.138 is alive172.30.128.161 is alive172.30.128.162 is alive为什么，会有那个250的地址多出来？