On 06/09/2015 12:44 AM, Ed Greshko wrote:
On 06/09/15 15:26, James Hogarth wrote:
>
>
> On 8 Jun 2015 13:12, "Dario Lesca" <d.lesca(a)solinos.it
<mailto:d.lesca@solinos.it>> wrote:
>>
>> Il giorno sab, 06/06/2015 alle 21.43 +0300, Alchemist ha scritto:
>>> Couple of possible solutions
>>
>> Thanks Alchemist, one of that sure probably partially solves my
>> problem.
>>
>> But the question is: Why in f22 (or new version of NetworkManager?) it
>> has removed the option to change the default gateway via "ip r rep..."
>> command line, like i do in previous version or all other version of
>> redhat or centos?
>>
>> I thing this is a issue, not a feature.
>>
>> Thanks
>>
>
> Think of it this way.
>
> You have your network manager configured (via static or dhcp) to have your default
route pointed somewhere.
>
> NM tries to maintain its configuration so when it notices you've changed the
route at the kernel level it doesn't know it's an admin override and fixes what it
thinks is a broken setup.
>
> On NM based systems instead of using ip route try the nmcli command.
>
> Something like this ought to work:
>
> nmcli conn mod <connection-profile-name> ipv4.gateway
<ip-address-of-gateway>
>
> You can see the present configuration NM thinks it should be with:
>
> nmcli conn show <connection-profile-name>
>
>
Or not....
[root@f22k ~]# nmcli conn mod enp0s3 ipv4.gateway 192.168.1.18
Error: Failed to modify connection 'enp0s3': ipv4.gateway: gateway cannot be set
if there are no addresses configured
FWIW, on this system ....
[root@f22k ~]# ip route sho
default via 192.168.1.1 dev enp0s3 proto static metric 100
192.168.1.0/24 dev enp0s3 proto kernel scope link src 192.168.1.224 metric 100
[root@f22k ~]# nmcli conn show enp0s3 | grep 192.168.1.1
IP4.GATEWAY: 192.168.1.1
IP4.DNS[1]: 192.168.1.1
DHCP4.OPTION[5]: domain_name_servers = 192.168.1.1
DHCP4.OPTION[8]: dhcp_server_identifier = 192.168.1.1
DHCP4.OPTION[17]: routers = 192.168.1.1
DHCP4.OPTION[29]: next_server = 192.168.1.1
I'm not the OP, but I figured I'd test it out anyway.
you have to specify the connection name, not the interface name.
Connection names are shown via "nmcli connection show --active" under
the "NAME" column. On my laptop:
[root@golem4 4.0.4-202.fc21.x86_64]# nmcli connection show --active
NAME UUID TYPE
DEVICE
System p4p1 5dd47203-fffb-671a-4fd0-4cff98347a3b 802-3-ethernet p4p1
virbr0 6220a6b2-8949-40e9-88f2-410ea4bea592 bridge
virbr0
AD e2503203-94ba-40d1-8d39-fc4c8aa6de7f 802-11-wireless
wlan0
virbr0-nic bc0d814c-e3d1-4a80-bc34-495419549610 generic
virbr0-nic
Now that I know I'm interested in "System p4p1":
[root@golem4 4.0.4-202.fc21.x86_64]# nmcli connection show "System p4p1"
connection.id: System p4p1
connection.uuid: 5dd47203-fffb-671a-4fd0-4cff98347a3b
connection.interface-name: p4p1
connection.type: 802-3-ethernet
connection.autoconnect: yes
connection.timestamp: 1433874599
connection.read-only: no
connection.permissions:
connection.zone: --
connection.master: --
connection.slave-type: --
connection.secondaries:
connection.gateway-ping-timeout: 0
802-3-ethernet.port: --
802-3-ethernet.speed: 0
802-3-ethernet.duplex: full
802-3-ethernet.auto-negotiate: yes
802-3-ethernet.mac-address: 14:FE:B5:A9:A4:8E
802-3-ethernet.cloned-mac-address: --
802-3-ethernet.mac-address-blacklist:
802-3-ethernet.mtu: auto
802-3-ethernet.s390-subchannels:
802-3-ethernet.s390-nettype: --
802-3-ethernet.s390-options:
ipv4.method: manual
ipv4.dns: xxx.xxx.xxx.xxx, xxx.xxx.xxx.xxx
ipv4.dns-search:
mydomain.com
ipv4.addresses: { ip = xxx.xxx.xxx.xxx/24, gw =
xxx.xxx.xxx.xxx }
ipv4.routes:
ipv4.ignore-auto-routes: no
ipv4.ignore-auto-dns: no
ipv4.dhcp-client-id: --
ipv4.dhcp-send-hostname: yes
ipv4.dhcp-hostname: --
ipv4.never-default: no
ipv4.may-fail: no
ipv6.method: ignore
ipv6.dns:
ipv6.dns-search:
ipv6.addresses:
ipv6.routes:
ipv6.ignore-auto-routes: no
ipv6.ignore-auto-dns: no
ipv6.never-default: no
ipv6.may-fail: yes
ipv6.ip6-privacy: 0 (disabled)
ipv6.dhcp-hostname: --
GENERAL.NAME: System p4p1
GENERAL.UUID: 5dd47203-fffb-671a-4fd0-4cff98347a3b
GENERAL.DEVICES: p4p1
GENERAL.STATE: activated
GENERAL.DEFAULT: yes
GENERAL.DEFAULT6: no
GENERAL.VPN: no
GENERAL.ZONE: --
GENERAL.DBUS-PATH:
/org/freedesktop/NetworkManager/ActiveConnection/7
GENERAL.CON-PATH:
/org/freedesktop/NetworkManager/Settings/21
GENERAL.SPEC-OBJECT: --
GENERAL.MASTER-PATH: --
IP4.ADDRESS[1]: ip = xxx.xxx.xxx.xxx/24, gw =
xxx.xxx.xxx.xxx
IP4.DNS[1]: xxx.xxx.xxx.xxx
IP4.DNS[2]: xxx.xxx.xxx.xxx
IP6.ADDRESS[1]: ip =
xxxx::xxxx:xxxx:xxxx:xxxx/64, gw = ::
(with appropriate stuff obfuscated).
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- "Very funny, Scotty. Now beam down my clothes." -
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