我想配置eth0为dhcp方式获得地址，但是又想指定网关，该怎么办？

idisc

我想配置eth0为dhcp方式获得地址，但是又想指定网关，该怎么办

achaoge

man interfaces

post-up command
              Run  command  after  bringing the interface up.  If this command
              fails then ifup aborts, refraining from marking the interface as
              configured  (even  though it has really been configured), prints
              an error message, and exits with status 0.   This  behavior  may
              change in the future.