# Rename Network Interface **URL:** \ **Category:** Get Help\ **Tags:** playbook, network\ **Created:** [September 15, 2023, 8:24pm UTC](https://forum.ansible.com/t/rename-network-interface/835 "2023-09-15T20:24:56Z")\ **Posts on this page:** 11\ **Page:** 2
**Author:** ![utoddl](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/utoddl/32/249_2.png) [@utoddl](https://forum.ansible.com/u/utoddl)\ **Post date:** [September 22, 2023, 7:57pm UTC](https://forum.ansible.com/t/rename-network-interface/835/22 "2023-09-22T19:57:33Z")
This is untested, but maybe instead of: `ATTR{address}=="{{ ansible_facts[item]['perm_macaddress'] | default(ansible_facts[item]['macaddress']) }}",` what about something like this: ```txt ATTR{address}=="{{ ansible_facts[item]['perm_macaddress'] | default(ansible_facts[item]['macaddress'] | default(ansible_facts[item | regex_replace('^(.*)_\d+$', '\1')]['macaddress'] ) ) }}", ``` or another way to spell it, also untested: ```txt ATTR{address}=="{{ ansible_facts[item]['perm_macaddress'] | default(ansible_facts[item if ansible_facts[item]['macaddress'] is defined else item | regex_replace('^(.*)_\d+$', '\1') ]['macaddress'] ) }}", ``` I don’t like to post untested code, but I think one can work out the details of what I’m trying to do. 🙂 ---
**Author:** ![bspigari](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/bspigari/32/789_2.png) [@bspigari](https://forum.ansible.com/u/bspigari)\ **Post date:** [September 22, 2023, 8:06pm UTC](https://forum.ansible.com/t/rename-network-interface/835/23 "2023-09-22T20:06:10Z")
Nowadays those file has been created to first interface eth0 \>\> eno0 It means udev rules is created but got a looping when try secondary interface… drop udev and don’t work on ifcfg file… I’ll be happy just if I can just bring down secondary interfaces (some hosts I have more than one 🙂 ) or just ignore… Is these ATTR line just related rules right ? I guess feasible to work with (with\_items or add something with (with\_list) ? ---
**Author:** ![bspigari](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/bspigari/32/789_2.png) [@bspigari](https://forum.ansible.com/u/bspigari)\ **Post date:** [September 22, 2023, 8:42pm UTC](https://forum.ansible.com/t/rename-network-interface/835/24 "2023-09-22T20:42:03Z")
Hi Todd Looks like first option will work… not sure secondary … [root@lit-vatst2-q002 ~]# ip add 1: lo: \ 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 2: eth0: \ mtu 1500 qdisc mq state UP group default qlen 1000 link/ether 00:50:56:8d:b1:b5 brd ff:ff:ff:ff:ff:ff inet 10.132.78.194/23 brd 10.132.79.255 scope global eth0 valid\_lft forever preferred\_lft forever inet 10.132.78.195/23 brd 10.132.79.255 scope global secondary eth0:1 valid\_lft forever preferred\_lft forever 3: eth1: \ mtu 1500 qdisc mq state UP group default qlen 1000 link/ether 00:50:56:8d:ef:82 brd ff:ff:ff:ff:ff:ff inet 10.132.196.253/23 brd 10.132.197.255 scope global eth1 valid\_lft forever preferred\_lft forever [root@lit-vatst2-q002 ~]# cd /etc/sysconfig/network-scripts/ [root@lit-vatst2-q002 network-scripts]# ls ifcfg-eno0 ifcfg-eth0.bak ifdown ifdown-ippp ifdown-post ifdown-sit ifdown-tunnel ifup-bnep ifup-ipv6 ifup-plusb ifup-routes ifup-TeamPort init.ipv6-global ifcfg-eno1 ifcfg-eth1.bak ifdown-bnep ifdown-ipv6 ifdown-ppp ifdown-Team ifup ifup-eth ifup-isdn ifup-post ifup-sit ifup-tunnel network-functions ifcfg-eth0:1 ifcfg-lo ifdown-eth ifdown-isdn ifdown-routes ifdown-TeamPort ifup-aliases ifup-ippp ifup-plip ifup-ppp ifup-Team ifup-wireless network-functions-ipv6 [root@lit-vatst2-q002 network-scripts]# cat /etc/udev/rules.d/ 69-vdo-start-by-dev.rules 70-rhosp-persistent-net.rules [root@lit-vatst2-q002 network-scripts]# cat /etc/udev/rules.d/70-rhosp-persistent-net.rules SUBSYSTEM==“net”, ACTION==“add”, DRIVERS==“?_“, ATTR{address}==“00:50:56:8d:b1:b5”, NAME=“eno0” SUBSYSTEM==“net”, ACTION==“add”, DRIVERS==”?_”, ATTR{address}==“00:50:56:8d:b1:b5”, NAME=“eno0\_1” SUBSYSTEM==“net”, ACTION==“add”, DRIVERS==“?\*”, ATTR{address}==“00:50:56:8d:ef:82”, NAME=“eno1” [root@lit-vatst2-q002 network-scripts]# ---
**Author:** ![bspigari](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/bspigari/32/789_2.png) [@bspigari](https://forum.ansible.com/u/bspigari)\ **Post date:** [September 22, 2023, 8:45pm UTC](https://forum.ansible.com/t/rename-network-interface/835/25 "2023-09-22T20:45:21Z")
ok: [10.132.78.194] META: ran handlers TASK [Debug message] \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* task path: /app/awxtmp/bwrap\_2947910\_zlz459co/awx\_2947910\_kd8\_l28h/project/replace\_nic\_ethx.yml:12 ok: [10.132.78.194] =\> { “src\_interfaces”: [ “eth0”, “eth0\_1”, “eth1” ] } changed: [10.132.78.194] =\> (item=eth0) =\> { “backup”: “”, “changed”: true, “diff”: [ { “after”: “”, “after\_header”: “/etc/udev/rules.d/70-rhosp-persistent-net.rules (content)”, “before”: “”, “before\_header”: “/etc/udev/rules.d/70-rhosp-persistent-net.rules (content)” }, { “after\_header”: “/etc/udev/rules.d/70-rhosp-persistent-net.rules (file attributes)”, “before\_header”: “/etc/udev/rules.d/70-rhosp-persistent-net.rules (file attributes)” } ], “invocation”: { “module\_args”: { “attributes”: null, “backrefs”: false, “backup”: false, “content”: null, “create”: true, “delimiter”: null, “directory\_mode”: null, “firstmatch”: false, “follow”: false, “force”: null, “group”: null, “insertafter”: null, “insertbefore”: null, “line”: “SUBSYSTEM==\“net\”, ACTION==\“add\”, DRIVERS==\”?\*\“, ATTR{address}==\“00:50:56:8d:b1:b5\”, NAME=\“eno0\””, “mode”: null, “owner”: null, “path”: “/etc/udev/rules.d/70-rhosp-persistent-net.rules”, “regexp”: null, “remote\_src”: null, “selevel”: null, “serole”: null, “setype”: null, “seuser”: null, “src”: null, “state”: “present”, “unsafe\_writes”: null, “validate”: null } }, “item”: “eth0”, “msg”: “line added” } \\“?_\\“, ATTR{address}==\\“00:50:56:8d:b1:b5\\”, NAME=\\“eno0\_1\\””, “src”: null, “seuser”: null, “delimiter”: null, “mode”: null, “firstmatch”: false, “attributes”: null, “backup”: false}}}\n’, ‘’) changed: [10.132.78.194] =\> (item=eth0\_1) =\> { “backup”: “”, “changed”: true, “diff”: [ { “after”: “”, “after\_header”: “/etc/udev/rules.d/70-rhosp-persistent-net.rules (content)”, “before”: “”, “before\_header”: “/etc/udev/rules.d/70-rhosp-persistent-net.rules (content)” }, { “after\_header”: “/etc/udev/rules.d/70-rhosp-persistent-net.rules (file attributes)”, “before\_header”: “/etc/udev/rules.d/70-rhosp-persistent-net.rules (file attributes)” } ], “invocation”: { “module\_args”: { “attributes”: null, “backrefs”: false, “backup”: false, “content”: null, “create”: true, “delimiter”: null, “directory\_mode”: null, “firstmatch”: false, “follow”: false, “force”: null, “group”: null, “insertafter”: null, “insertbefore”: null, “line”: “SUBSYSTEM==\“net\”, ACTION==\“add\”, DRIVERS==\”?_\”, ATTR{address}==\“00:50:56:8d:b1:b5\”, NAME=\“eno0\_1\”", “mode”: null, “owner”: null, “path”: “/etc/udev/rules.d/70-rhosp-persistent-net.rules”, “regexp”: null, “remote\_src”: null, “selevel”: null, “serole”: null, “setype”: null, “seuser”: null, “src”: null, “state”: “present”, “unsafe\_writes”: null, “validate”: null } }, “item”: “eth0\_1”, “msg”: “line added” } \\“?_\\“, ATTR{address}==\\“00:50:56:8d:ef:82\\”, NAME=\\“eno1\\””, “src”: null, “seuser”: null, “delimiter”: null, “mode”: null, “firstmatch”: false, “attributes”: null, “backup”: false}}}\n’, ‘’) changed: [10.132.78.194] =\> (item=eth1) =\> { “backup”: “”, “changed”: true, “diff”: [ { “after”: “”, “after\_header”: “/etc/udev/rules.d/70-rhosp-persistent-net.rules (content)”, “before”: “”, “before\_header”: “/etc/udev/rules.d/70-rhosp-persistent-net.rules (content)” }, { “after\_header”: “/etc/udev/rules.d/70-rhosp-persistent-net.rules (file attributes)”, “before\_header”: “/etc/udev/rules.d/70-rhosp-persistent-net.rules (file attributes)” } ], “invocation”: { “module\_args”: { “attributes”: null, “backrefs”: false, “backup”: false, “content”: null, “create”: true, “delimiter”: null, “directory\_mode”: null, “firstmatch”: false, “follow”: false, “force”: null, “group”: null, “insertafter”: null, “insertbefore”: null, “line”: “SUBSYSTEM==\“net\”, ACTION==\“add\”, DRIVERS==\”?_\”, ATTR{address}==\“00:50:56:8d:ef:82\”, NAME=\“eno1\”", “mode”: null, “owner”: null, “path”: “/etc/udev/rules.d/70-rhosp-persistent-net.rules”, “regexp”: null, “remote\_src”: null, “selevel”: null, “serole”: null, “setype”: null, “seuser”: null, “src”: null, “state”: “present”, “unsafe\_writes”: null, “validate”: null } }, “item”: “eth1”, “msg”: “line added” } TASK [Check that src\_prefix files exists] \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* TASK [Replace interface name in config.json] \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* task path: /app/awxtmp/bwrap\_2947910\_zlz459co/awx\_2947910\_kd8\_l28h/project/replace\_nic\_ethx.yml:192 skipping: [10.132.78.194] =\> (item=eth0) =\> { “changed”: false, “item”: “eth0”, “skip\_reason”: “Conditional result was False” } skipping: [10.132.78.194] =\> (item=eth0\_1) =\> { “changed”: false, “item”: “eth0\_1”, “skip\_reason”: “Conditional result was False” } skipping: [10.132.78.194] =\> (item=eth1) =\> { “changed”: false, “item”: “eth1”, “skip\_reason”: “Conditional result was False” } META: ran handlers META: ran handlers PLAY RECAP \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* 10.132.78.194 : ok=15 changed=7 unreachable=0 failed=0 ---
**Author:** ![bspigari](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/bspigari/32/789_2.png) [@bspigari](https://forum.ansible.com/u/bspigari)\ **Post date:** [September 22, 2023, 8:49pm UTC](https://forum.ansible.com/t/rename-network-interface/835/26 "2023-09-22T20:49:52Z")
mmm first option messed up interface 1 after reboot eth0 \>\> eno0\_1 Lemme test option 2 ---
**Author:** ![bspigari](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/bspigari/32/789_2.png) [@bspigari](https://forum.ansible.com/u/bspigari)\ **Post date:** [September 22, 2023, 9:08pm UTC](https://forum.ansible.com/t/rename-network-interface/835/27 "2023-09-22T21:08:12Z")
No luck option 2 doesn’t work at all… it is creating eno0 and eno0\_1 into udev with same mac addr… but its faling on ifcfg-eno0 and ifcfg-eno0\_1 that creating one device as eno0\_1 and no secondary… I guess the best way would be to ignore or bring down secondary interface… 😑 ---
**Author:** ![utoddl](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/utoddl/32/249_2.png) [@utoddl](https://forum.ansible.com/u/utoddl)\ **Post date:** [September 22, 2023, 9:29pm UTC](https://forum.ansible.com/t/rename-network-interface/835/28 "2023-09-22T21:29:18Z")
I’ve been [reading up](https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/configuring_and_managing_networking/consistent-network-interface-device-naming_configuring-and-managing-networking#doc-wrapper) on device names vs interface names. (It’s a RHEL-8 doc, but similar enough at the higher levels I think.) We may be mixing up things. I think there’s only one **device** named initially `eth0` but renamed via udev to `eno0`, and it has a MAC address. But there are two **interfaces** as described/defined in `ifcfg-eno0` and `ifcfg_eno0_1`, both of which map to a single device. I’d suggest dropping the udev rule for `eno0_1` because it’s bogus. Use udev to define device `eno0`, and use `ifcfg-*` files to create the two interfaces, both of which are on the `eno0` device. ---
**Author:** ![utoddl](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/utoddl/32/249_2.png) [@utoddl](https://forum.ansible.com/u/utoddl)\ **Post date:** [September 22, 2023, 9:35pm UTC](https://forum.ansible.com/t/rename-network-interface/835/29 "2023-09-22T21:35:20Z")
If that’s right, then add a `when:` on your “Update udev rules” task: ```txt when: ansible_facts[item]['macaddress'] is defined ``` You don’t want/need the `ipv4_secondaries` for the udev rules, but you will need them for the `ifcfg-*` interface definitions. ---
**Author:** ![bspigari](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/bspigari/32/789_2.png) [@bspigari](https://forum.ansible.com/u/bspigari)\ **Post date:** [September 27, 2023, 9:42pm UTC](https://forum.ansible.com/t/rename-network-interface/835/30 "2023-09-27T21:42:21Z")
Yeh Todd You’re a rock star ! Its work to me ````auto - name: Update udev rules tags: - udev when: ansible_facts[item]['macaddress'] is defined lineinfile: line: > SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="{{ ansible_facts[item]['perm_macaddress'] | default(ansible_facts[item]['macaddress']) }}", NAME="{{ item | replace(src_prefix, dst_prefix) }}" path: /etc/udev/rules.d/70-rhosp-persistent-net.rules create: true with_items: "{{ src_interfaces | reject('match', '^.*\\..*$') | list }}"``` - name: Update udev rules tags: - udev when: ansible_facts[item]['macaddress'] is defined lineinfile: line: > SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="{{ ansible_facts[item]['perm_macaddress'] | default(ansible_facts[item]['macaddress']) }}", NAME="{{ item | replace(src_prefix, dst_prefix) }}" path: /etc/udev/rules.d/70-rhosp-persistent-net.rules create: true with_items: "{{ src_interfaces | reject('match', '^.*\\..*$') | list }}"` I just need to fix secondary IP after migration but ok :slight_smile: ```` ---
**Author:** ![gwmngilfen](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/gwmngilfen/32/6_2.png) [@gwmngilfen](https://forum.ansible.com/u/gwmngilfen)\ **Post date:** [September 27, 2023, 10:10pm UTC](https://forum.ansible.com/t/rename-network-interface/835/31 "2023-09-27T22:10:42Z")
Since it was @utoddl who got you on the right path, I’ve moved the Solution to his post. Solutions are a big part of how we recognise contributions in the #Get Help category, so this seems right here. ---
**Author:** ![system](https://us1.discourse-cdn.com/ansible/original/1X/1882d9a01da5d8996a862359b0913cc568a39b84.svg) [@system](https://forum.ansible.com/u/system)\ **Post date:** [October 27, 2023, 10:10pm UTC](https://forum.ansible.com/t/rename-network-interface/835/32 "2023-10-27T22:10:47Z")
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