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path: root/src/conf_mode/interfaces-ethernet.py
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-rwxr-xr-xsrc/conf_mode/interfaces-ethernet.py8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/conf_mode/interfaces-ethernet.py b/src/conf_mode/interfaces-ethernet.py
index 01a805e8b..f620cc6ab 100755
--- a/src/conf_mode/interfaces-ethernet.py
+++ b/src/conf_mode/interfaces-ethernet.py
@@ -20,7 +20,7 @@ from sys import exit
from copy import deepcopy
from netifaces import interfaces
-from vyos.ifconfig import EthernetIf
+from vyos.ifconfig import EthernetIf, Section
from vyos.ifconfig_vlan import apply_vlan_config, verify_vlan_config
from vyos.configdict import list_diff, vlan_to_dict
from vyos.config import Config
@@ -201,6 +201,12 @@ def get_config():
if conf.exists('mac'):
eth['mac'] = conf.return_value('mac')
+ # Find out if MAC has changed - if so, we need to delete all IPv6 EUI64 addresses
+ # before re-adding them
+ if ( eth['mac'] and eth['intf'] in Section.interfaces(section='ethernet')
+ and eth['mac'] != EthernetIf(eth['intf'], create=False).get_mac() ):
+ eth['ipv6_eui64_prefix_remove'] += eth['ipv6_eui64_prefix']
+
# Maximum Transmission Unit (MTU)
if conf.exists('mtu'):
eth['mtu'] = int(conf.return_value('mtu'))