Centos/Linux下如何查看网关地址/Gateway地址

Centos/Linux下如何查看网关地址/Gateway地址？ Linux下查看网关的命令还是很多的，不过如果IP是DHCP获取，那么有些命令是不适用的，当然也有通用的查询网关命令.

1.ifconfig -a 和 cat /etc/resolv.conf （主要查看ip/netmask和dns）

2.netstat -rn

3.cat /etc/sysconfig/network

4.cat /etc/sysconfig/network-scripts/ifcfg-eth0

5.traceroute 第一行就是自己的网关

6.ip route show

7.route -n

以上几个是比较常用的查询网关的命令。下面是范例：

[root@www.ctohome.com]# netstat -rn

Kernel IP routing table

Destination Gateway Genmask Flags MSS Window irtt Iface

184.82.152.96 0.0.0.0 255.255.255.248 U 0 0 0 eth0

169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0

0.0.0.0 184.82.152.97 0.0.0.0 UG 0 0 0 eth0

[root@www.ctohome.com]# cat /etc/sysconfig/network-scripts/ifcfg-eth0

# Intel Corporation 82567V-2 Gigabit Network Connection

DEVICE=eth0

BOOTPROTO=none

HWADDR=00:1c:c0:f8:a1:ac

ONBOOT=yes

NETMASK=255.255.255.248

IPADDR=184.82.152.98

GATEWAY=184.82.152.97

TYPE=Ethernet

[root@www.ctohome.com]# ip route show

184.82.152.96/29 dev eth0 proto kernel scope link src 184.82.152.98

169.254.0.0/16 dev eth0 scope link

default via 184.82.152.97 dev eth0

[root@www.ctohome.com]# route -n

Kernel IP routing table

Destination Gateway Genmask Flags Metric Ref Use Iface

184.82.152.96 0.0.0.0 255.255.255.248 U 0 0 0 eth0

169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0

0.0.0.0 184.82.152.97 0.0.0.0 UG 0 0 0 eth0

[root@www.ctohome.com]# ifconfig -a

eth0 Link encap:Ethernet HWaddr 00:1C:C0:F8:A1:AC

inet addr:184.82.152.98 Bcast:184.82.152.103 Mask:255.255.255.248