AIX删除多餘的預設網關
系統環境：
作業系統：AIX 5.3.8
Oracle: Oracle 10gR2
案例分析：
在AIX系統上有多個預設網關，在安裝RAC時，導緻網絡環境檢測錯誤，無法安裝RAC.
通過smit和route delete删除，系統在重新開機後又回到原來的狀态！
解決方案：
1、檢視目前預設網關
[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 - -
Route 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 True
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
CuAt:
name = "inet0"
attribute = "route"
value = "net,-hopcount,0,,0,10.10.10.1"
type = "R"
generic = "DU"
rep = "s"
nls_index = 0
CuAt:
name = "inet0"
attribute = "route"
value = "net,-hopcount,0,,0,192.168.8.1"
type = "R"
generic = "DU"
rep = "s"
nls_index = 0
CuAt:
name = "inet0"
attribute = "route"
value = "net,-hopcount,2,,0,10.10.10.1"
type = "R"
generic = "DU"
rep = "s"
nls_index = 0 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
CuAt:
name = "inet0"
attribute = "hostname"
value = "aix230"
type = "R"
generic = "DU"
rep = "s"
nls_index = 24
CuAt:
name = "inet0"
attribute = "route"
value = "net,-hopcount,0,,0,192.168.8.1"
type = "R"
generic = "DU"
rep = "s"
nls_index = 0 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 - -
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 - -
Route tree for Protocol Family 24 (Internet v6):
::1 ::1 UH 0 0 lo0 - -