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Solaris 指定通讯接口方法----分享

时间：2010-06-25

来源：互联网

大家在工作中有可能遇到这样的问题，一台服务器存在两个及两个以上IP地址（物理IP和业务IP），那么如何控制业务程序使用业务IP进行通讯呢。下面将通过两个实例来讲解如何根据自己需要限制接口通信。希望对大家有所帮助：

一、环境

root@e5kd6 # more /etc/defaultrouter
192.168.0.129
root@e5kd6 # more /etc/netmasks
192.168.0.0 255.255.255.0
root@e5kd6 # netstat -rn
Routing Table: IPv4
Destination Gateway Flags Ref Use Interface
-------------------- -------------------- ----- ----- ------ ---------
192.168.0.0 192.168.0.59 U 1 0 ge0
default 192.168.0.129 UG 1 194
127.0.0.1 127.0.0.1 UH 101964416 lo0
root@e5kd6 # ifconfig -a
ge0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 6
inet 192.168.0.59 netmask ffffff00 broadcast 192.168.0.255
ether 8:0:20:ff:1b:5c

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作者: rusty_rui 发布时间: 2010-06-25

添加子接口地址，用于业务IP：

root@e5kd6 # ifconfig ge0 addif 192.168.0.57 netmask + broadcast + up
Created new logical interface ge0:1
Setting netmask of ge0:1 to 255.255.255.0
root@e5kd6 # ifconfig -a
lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 1
inet 127.0.0.1 netmask ff000000
ge0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 6
inet 192.168.0.59 netmask ffffff00 broadcast 192.168.0.255
ether 8:0:20:ff:1b:5c
ge0:1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 6
inet 192.168.0.57 netmask ffffff00 broadcast 192.168.0.255
root@e5kd6 # netstat -rn
Routing Table: IPv4
Destination Gateway Flags Ref Use Interface
-------------------- -------------------- ----- ----- ------ ---------
192.168.0.0 192.168.0.59 U 1 0 ge0
192.168.0.0 192.168.0.57 U 1 0 ge0:1
default 192.168.0.129 UG 1 196
127.0.0.1 127.0.0.1 UH 101964707 lo0
root@e5kd6 # traceroute 10.109.109.33
traceroute: Warning: Multiple interfaces found; using 192.168.0.59 @ ge0
traceroute to 10.109.109.33 (10.109.109.33), 30 hops max, 40 byte packets
1 192.168.0.2 (192.168.0.2) 1.321 ms 0.397 ms 0.365 ms
2 10.109.109.33 (10.109.109.33) 0.358 ms 0.333 ms 0.315 ms

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作者: zhmzhouming: 发布时间: 2010-06-25

本帖最后由 rusty_rui 于 2010-06-25 11:25 编辑

配置1、期望使用192.168.0.57用于服务器间通信，配置过Sun Cluster的同仁对此应该不陌生。那就是使用deprecated参数：

QUOTE:

deprecated
         Marks the address as a deprecated  address.  Addresses
         marked  as  deprecated  will  not  be  used  as source
         address for outbound packets unless either  there  are
         no  other addresses available on this interface or the
         application has bound to this address explicitly.  The
         status  display shows DEPRECATED as part of flags. See
         INTERFACE FLAGS for information on the flags supported
         by ifconfig.

对需要进行限制通信的接口使用此参数，使用此参数的接口地址原则上不参与主动通信，仅当没有其他可用的接口地址用于通信时才承担主动通信任务。可以使用 "-deprecated"参数取消此限制。注：使用deprecated参数的地址，被动访问还是要提供服务的。

此测试中计划使用192.168.0.57作为业务地址，那么我们需要限制ge0端口地址192.168.0.59：

root@e5kd6 # ifconfig ge0 deprecated
[b]root@e5kd6 # ifconfig -a[/b]
lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 1
inet 127.0.0.1 netmask ff000000
ge0: flags=1040843<UP,BROADCAST,RUNNING,MULTICAST,[b]DEPRECATED[/b],IPv4> mtu 1500 index 6
inet 192.168.0.59 netmask ffffff00 broadcast 192.168.0.255
ether 8:0:20:ff:1b:5c
ge0:1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 6
inet 192.168.0.57 netmask ffffff00 broadcast 192.168.0.255
root@e5kd6 # traceroute 10.109.109.33
traceroute: Warning: Multiple interfaces found; [b]using 192.168.0.57 @ ge0:1[/b]
traceroute to 10.109.109.33 (10.109.109.33), 30 hops max, 40 byte packets
1 192.168.0.3 (192.168.0.3) 1.780 ms 0.385 ms 0.344 ms
2 10.109.109.33 (10.109.109.33) 0.398 ms 0.310 ms 0.308 ms
已经按照预定端口ge0：1进行通讯
root@e5kd6 # netstat -rn
Routing Table: IPv4
Destination Gateway Flags Ref Use Interface
-------------------- -------------------- ----- ----- ------ ---------
192.168.0.0 192.168.0.57 U 1 1 ge0:1
192.168.0.0 192.168.0.57 U 1 0 ge0
default 192.168.0.129 UG 1 201
127.0.0.1 127.0.0.1 UH 101967996 lo0

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