Centos 添加静态路由及 SIOCADDRT错误处理

需求：将访问211.211.1.69的数据包通过em2发送到172.24.32.6，实现内网访问211.211.1.69。

# 网络基本信息
[root@apprz network-scripts]# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
172.24.32.4     *               255.255.255.252 U     1      0        0 em2
192.168.9.0     *               255.255.255.0   U     1      0        0 em1
default         192.168.9.254   0.0.0.0         UG    0      0        0 em1

[root@nagios ~]# cat /etc/sysconfig/network-scripts/ifcfg-em2 
DEVICE=em2
IPADDR=172.24.30.6
NETMASK=255.255.255.252

[root@nagios ~]# cat /etc/sysconfig/network-scripts/ifcfg-em1
DEVICE=em1
IPADDR=192.168.9.13
NETMASK=255.255.255.0
GATEWAY=192.168.9.254
    
    
     
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静态路由添加命令：route add –host 211.211.1.69 gw 172.24.32.6 dev em2

错误 -net 只能指定网段

[root@nagios ~]# route add -net 211.211.10.69 netmask 255.255.255.0 dev eth3
route: netmask doesn't match route address
    
    
     
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正确

[root@nagios ~]# route add -net 211.211.10.0 netmask 255.255.255.0 dev eth3
    
    
     
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错误 -host 不用指定掩码

[root@nagios ~]# route add -host 211.211.1.69 netmask 255.255.255.0 gw 172.30.0.69   
route: netmask 000000ff doesn't make sense with host route
    
    
     
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正确

[root@nagios ~]# route add –host 211.211.10.69 netmask 255.255.255.0 gw 172.24.30.5 dev em2
    
    
     
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SIOCADDRT：No Such Process
gw 后指定ip 必须和 em1 或者 em2 同一个网段
SIOCADDRT：No Such Device
dev 后指定设备必须是已经存在的网卡设备

转载来源：http://blog.csdn.net/air_penguin/article/details/51350910

需求：将访问211.211.1.69的数据包通过em2发送到172.24.32.6，实现内网访问211.211.1.69。

# 网络基本信息
[root@apprz network-scripts]# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
172.24.32.4     *               255.255.255.252 U     1      0        0 em2
192.168.9.0     *               255.255.255.0   U     1      0        0 em1
default         192.168.9.254   0.0.0.0         UG    0      0        0 em1

[root@nagios ~]# cat /etc/sysconfig/network-scripts/ifcfg-em2 
DEVICE=em2
IPADDR=172.24.30.6
NETMASK=255.255.255.252

[root@nagios ~]# cat /etc/sysconfig/network-scripts/ifcfg-em1
DEVICE=em1
IPADDR=192.168.9.13
NETMASK=255.255.255.0
GATEWAY=192.168.9.254
  
  
   
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静态路由添加命令：route add –host 211.211.1.69 gw 172.24.32.6 dev em2

错误 -net 只能指定网段

[root@nagios ~]# route add -net 211.211.10.69 netmask 255.255.255.0 dev eth3
route: netmask doesn't match route address
  
  
   
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正确

[root@nagios ~]# route add -net 211.211.10.0 netmask 255.255.255.0 dev eth3
  
  
   
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错误 -host 不用指定掩码

[root@nagios ~]# route add -host 211.211.1.69 netmask 255.255.255.0 gw 172.30.0.69   
route: netmask 000000ff doesn't make sense with host route
  
  
   
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正确

[root@nagios ~]# route add –host 211.211.10.69 netmask 255.255.255.0 gw 172.24.30.5 dev em2
  
  
   
   1

SIOCADDRT：No Such Process
gw 后指定ip 必须和 em1 或者 em2 同一个网段
SIOCADDRT：No Such Device
dev 后指定设备必须是已经存在的网卡设备

Centos 添加静态路由及 SIOCADDRT错误处理

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