fping -g 172.30.128.0/24 这个命令的返回结果问题

Question

172.30.128.97 is alive

172.30.128.98 is alive

172.30.128.99 is alive

172.30.128.100 is alive

172.30.128.101 is alive

172.30.128.102 is alive

172.30.128.111 is alive

172.30.128.112 is alive

172.30.128.113 is alive

172.30.128.114 is alive

172.30.128.115 is alive

172.30.128.116 is alive

172.30.128.117 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 alive

172.30.128.161 is alive

172.30.128.162 is alive

为什么，会有那个250的地址多出来？