Version 7 (modified by mitty, 16 years ago) (diff) |
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NIC alias
- 一つの物理NICに複数のIPを割り当てる
CentOS
設定
- /etc/sysconfig/network-scripts/
- ifcfg-eth?:? を作る
- 書式は通常の ifcfg-eth? と同じ
- 例
- dhcp (後述)
DEVICE=eth0:0 BOOTPROTO=dhcp ONBOOT=yes DHCP_HOSTNAME=centos5-test
- static
DEVICE=eth0:0 BOOTPROTO=static IPADDR=192.168.40.250 NETMASK=255.255.255.0 GATEWAY=192.168.40.2 ONBOOT=yes DHCP_HOSTNAME=centos5-test
- dhcp (後述)
- ifconfig (static)
eth0 Link encap:Ethernet HWaddr 00:0C:29:XX:XX:XX inet addr:192.168.40.141 Bcast:192.168.40.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:102642 errors:0 dropped:0 overruns:0 frame:0 TX packets:1738 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:11384683 (10.8 MiB) TX bytes:234313 (228.8 KiB) Interrupt:59 Base address:0x2000 eth0:0 Link encap:Ethernet HWaddr 00:0C:29:XX:XX:XX inet addr:192.168.40.250 Bcast:192.168.40.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:59 Base address:0x2000
dhcpについて
- 以下の問題は、BOOTPROTO=static の際には発生しない模様
- ifup eth0:0 でエラーが出る
Determining IP information for eth0:0...SIOCSIFFLAGS: Cannot assign requested address SIOCSIFFLAGS: Cannot assign requested address done.
- IP自体は正常にassignされる
- ifconfig
eth0 Link encap:Ethernet HWaddr 00:0C:29:XX:XX:XX inet addr:192.168.40.141 Bcast:192.168.40.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:102862 errors:0 dropped:0 overruns:0 frame:0 TX packets:1939 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:11403063 (10.8 MiB) TX bytes:260163 (254.0 KiB) Interrupt:59 Base address:0x2000 eth0:0 Link encap:Ethernet HWaddr 00:0C:29:XX:XX:XX inet addr:192.168.40.142 Bcast:192.168.40.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:59 Base address:0x2000
- ifconfig
- boot時のエラー
- IPもassignされず
- fconfig eth0:0
eth0:0 Link encap:Ethernet HWaddr 00:0C:29:XX:XX:XX UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:59 Base address:0x2000
- fconfig eth0:0
- ifup eth0:0
Determining IP information for eth0:0...SIOCSIFFLAGS: Cannot assign requested address SIOCSIFFLAGS: Cannot assign requested address SIOCGIFADDR: Cannot assign requested address SIOCSIFBROADCAST: Cannot assign requested address SIOCSIFBRDADDR: Cannot assign requested address SIOCSIFFLAGS: Cannot assign requested address done.
- assignされず
- ifup eth0:0
Determining IP information for eth0:0...SIOCSIFFLAGS: Cannot assign requested address SIOCSIFFLAGS: Cannot assign requested address SIOCSIFFLAGS: Cannot assign requested address SIOCSIFFLAGS: Cannot assign requested address SIOCSIFFLAGS: Cannot assign requested address SIOCSIFFLAGS: Cannot assign requested address done.
- assignされた
- ifconfig eth0:0
eth0:0 Link encap:Ethernet HWaddr 00:0C:29:XX:XX:XX inet addr:192.168.40.141 Bcast:192.168.40.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:59 Base address:0x2000
- ifconfig eth0:0
- assignされた
- assignされたりされなかったりするため、不安定
Attachments (3)
- centos-alias.png (3.2 KB) - added by mitty 16 years ago.
-
dhcp3-client-dummy_3.0.6.dfsg-1ubuntu9_i386.deb
(2.2 KB) -
added by mitty 16 years ago.
copy from http://launchpadlibrarian.net/25005944/dhcp3-client-dummy_3.0.6.dfsg-1ubuntu9_i386.deb
- hardy-udhcpc.png (11.7 KB) - added by mitty 16 years ago.
Download all attachments as: .zip