RockyLinuxをふつーにインストールしたら、意図しないIPアドレスが設定されている。
ちなみにインストール時に固定IPアドレスを設定している。
$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: ens18: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 3e:99:67:23:9c:bb brd ff:ff:ff:ff:ff:ff
altname enp0s18
inet 192.168.1.214/24 brd 192.168.1.255 scope global noprefixroute ens18
valid_lft forever preferred_lft forever
inet 192.168.1.76/24 brd 192.168.1.255 scope global secondary dynamic noprefixroute ens18
valid_lft 254613sec preferred_lft 254613sec
inet6 2408:213:858c:6800:3c99:67ff:fe23:9cbb/64 scope global dynamic noprefixroute
valid_lft 276sec preferred_lft 276sec
inet6 fe80::3c99:67ff:fe23:9cbb/64 scope link noprefixroute
valid_lft forever preferred_lft forever
[kudo@localhost ~]$
192.168.1.76は不要なんだが、、、
原因はわからないんだけど、DHCPで設定されたIPアドレスらしい。
実際インタフェースの設定では、DHCPを利用するようになっとる。
$ nmcli -f ipv4 con show ens18
ipv4.method: auto
ipv4.dns: 8.8.8.8,8.8.4.4
ipv4.dns-search: --
ipv4.dns-options: --
ipv4.dns-priority: 0
ipv4.addresses: 192.168.1.214/24
ipv4.gateway: 192.168.1.1
ipv4.routes: --
ipv4.route-metric: -1
ipv4.route-table: 0 (unspec)
ipv4.routing-rules: --
ipv4.ignore-auto-routes: いいえ
ipv4.ignore-auto-dns: いいえ
ipv4.dhcp-client-id: --
ipv4.dhcp-iaid: --
ipv4.dhcp-timeout: 0 (default)
ipv4.dhcp-send-hostname: はい
ipv4.dhcp-hostname: --
ipv4.dhcp-fqdn: --
ipv4.dhcp-hostname-flags: 0x0 (none)
ipv4.never-default: いいえ
ipv4.may-fail: はい
ipv4.required-timeout: -1 (default)
ipv4.dad-timeout: -1 (default)
ipv4.dhcp-vendor-class-identifier: --
ipv4.link-local: 0 (default)
ipv4.dhcp-reject-servers: --
というわけでIPアドレスの取得をスタティックにして、不要なIPアドレスを引っぺがす。
# nmcli con mod ens18 ipv4.method manual
[root@localhost kudo]# nmcli -f ipv4 con show ens18
ipv4.method: manual
ipv4.dns: 8.8.8.8,8.8.4.4
ipv4.dns-search: --
ipv4.dns-options: --
ipv4.dns-priority: 0
ipv4.addresses: 192.168.1.214/24
ipv4.gateway: 192.168.1.1
ipv4.routes: --
ipv4.route-metric: -1
ipv4.route-table: 0 (unspec)
ipv4.routing-rules: --
ipv4.ignore-auto-routes: いいえ
ipv4.ignore-auto-dns: いいえ
ipv4.dhcp-client-id: --
ipv4.dhcp-iaid: --
ipv4.dhcp-timeout: 0 (default)
ipv4.dhcp-send-hostname: はい
ipv4.dhcp-hostname: --
ipv4.dhcp-fqdn: --
ipv4.dhcp-hostname-flags: 0x0 (none)
ipv4.never-default: いいえ
ipv4.may-fail: はい
ipv4.required-timeout: -1 (default)
ipv4.dad-timeout: -1 (default)
ipv4.dhcp-vendor-class-identifier: --
ipv4.link-local: 0 (default)
ipv4.dhcp-reject-servers: --
再設定
# nmcli connection down ens18
# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: ens18: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 3e:99:67:23:9c:bb brd ff:ff:ff:ff:ff:ff
altname enp0s18
inet 192.168.1.214/24 brd 192.168.1.255 scope global noprefixroute ens18
valid_lft forever preferred_lft forever
inet6 2408:213:858c:6800:3c99:67ff:fe23:9cbb/64 scope global dynamic noprefixroute
valid_lft 299sec preferred_lft 299sec
inet6 fe80::3c99:67ff:fe23:9cbb/64 scope link noprefixroute
valid_lft forever preferred_lft forever
完了
