d-link 3326 配置vlan 接口ip问题

下面两条命令 10.104.218.8/25 执行失败 换成192.168.11.8/24 就能成功，请高手解释一下


DES-3326SR:4#create ipif if2 10.104.218.8/25 vlan2 state enable
Command: create ipif if2 10.104.218.8/25 vlan2 state enable

Fail!

DES-3326SR:4#create ipif if2 192.168.11.8/24 vlan2 state enable
Command: create ipif if2 192.168.11.8/24 vlan2 state enable

Success.

补充ip段为 10.104.218.8 255.255.255.128