aix 删除多餘預設網關

錯誤資訊：

安裝crs時跑腳本報錯

[root@aix229:/]#/u01/crs_1/root.sh

WARNING:

  directory '/u01' is not owned by root

Checking

  to see if Oracle CRS stack is already configured

  to see if any 9i GSD is up

/etc/oracle

  does not exist. Creating it now.

Setting

  the permissions on OCR backup directory

  up NS directories

Oracle

  Cluster Registry configuration upgraded successfully

Successfully

  accumulated necessary OCR keys.

Using

  ports: CSS=49895 CRS=49896 EVMC=49898 and EVMR=49897.

node

  <nodenumber>: <nodename> <private interconnect name>

  <hostname>

node 1:

  aix229 aix229-priv aix229

node 2:

  aix230 aix230-priv aix230

Creating

  OCR keys for user 'root', privgrp 'system'..

Operation

  successful.

Now

  formatting voting device: /dev/rrac_vote1

Format

  of 1 voting devices complete.

Startup

  will be queued to init within 30 seconds.

Adding

  daemons to inittab

Expecting

  the CRS daemons to be up within 600 seconds.

Failure at final check of Oracle CRS stack.

10

出錯原因：

檢查以後發現，en0（192.168.8.230）預設網關是10.10.10.1，是以造成無法通信。進一步檢查發現主機設有多個預設網關。AIX中配置了多條的預設網關，會造成網絡不穩定(例如時斷時好)。

解決方法：

1、檢視目前預設網關

如果用route指令（或smitty route)去删除，下次重新開機後，又會回來；是以要從ODM裡删除。

[root@aix230:/]#netstat -nr

Routing

  tables

Destination        Gateway           Flags   Refs    

  Use  If   Exp 

  Groups

Route

  tree for Protocol Family 2 (Internet):

default            192.168.8.1       UG        0         0 en0      -     

  -  

default            10.10.10.1            UG        0         0 en1      -     

  -

default            10.10.10.1          UG       

  0         0 en1      -     

10.10.10.0         10.10.10.230      UHSb      0         0 en1      -     

  -   =>

10.10.10/24        10.10.10.230      U         0         1 en1      -     

10.10.10.230       127.0.0.1         UGHS      0         1 lo0      -     

10.10.10.255       10.10.10.230      UHSb      0         4 en1      -     

127/8              127.0.0.1         U        13       247 lo0      -     

192.168.8.0        192.168.8.230     UHSb      0         0 en0      -     

192.168.8/24       192.168.8.230     U         4        42 en0      -     

192.168.8.230      127.0.0.1         UGHS      0         1 lo0      -     

192.168.8.255      192.168.8.230     UHSb      0         4 en0      -     

  tree for Protocol Family 24 (Internet v6):

::1                ::1               UH        0         0 lo0      -     

2、檢視ODM資訊

[root@aix230:/]#lsattr -El inet0

authm         65536                          Authentication

  Methods              True

bootup_option

  no                             Use

  BSD-style Network Configuration True

gateway                                     

  Gateway                            

  True

hostname      aix230                         Host Name                           True

rout6                                        IPv6

  Route                          True

route         net,-hopcount,0,,0,192.168.8.1

  Route                              

route         net,-hopcount,0,,0,10.10.10.1  Route                               True

route         net,-hopcount,2,,0,10.10.10.1  Route                               True

[root@aix230:/]#odmget -q "name=inet0" CuAt

CuAt:

        name = "inet0"

        attribute = "hostname"

        value = "aix230"

        type = "R"

        generic = "DU"

        rep = "s"

        nls_index = 24

        attribute = "route"

        value = "net,-hopcount,0,,0,10.10.10.1"

        nls_index = 0

        value =

  "net,-hopcount,0,,0,192.168.8.1"

        value = "net,-hopcount,2,,0,10.10.10.1"

标紅的為多餘網關。

3、逐條删除沒用的預設路由

[root@aix230:/]#chdev

  -l inet0 -a delroute="net,-hopcount,2,,0,10.10.10.1"

inet0

  changed

4、确認生效

[root@aix230:/]#odmget

  -q "name=inet0" CuAt

[root@aix230:/]#netstat

  -nr