n-app01至n-app04四台主机无法访问外网
默认路由如下:
Destination Gateway Genmask Flags Metric Ref Use Iface
172.26.48.0 0.0.0.0 255.255.240.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 1002 0 0 eth0
0.0.0.0 172.26.63.253 0.0.0.0 UG 0 0 0 eth0
# ping www.sina.com.cn
PING spool.grid.sinaedge.com (218.30.114.37) 56(84) bytes of data.
^C
--- spool.grid.sinaedge.com ping statistics ---
请问,这个是什么问题?防火墙默认策略允许访问外网,为何我无法访问。