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@xxxxxxxxxx <mailto:d.lesca@xxxxxxxxxx>> 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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- Rick Stevens, Systems Engineer, AllDigital ricks@xxxxxxxxxxxxxx -
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- "Very funny, Scotty. Now beam down my clothes." -
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