check this PR: https://github.com/xcat2/xcat-core/pull/6755 I had fixes
last week.
Thanks,
Casandra Qiu
...................................................................
Casandra Hong Qiu
Phone: (845) 433-9291, t/l 293-9291
Office: Building 8, 3-B-04
cxh...@us.ibm.com
From: Christian Caruthers <ccaruth...@lenovo.com>
To: "xcat-user@lists.sourceforge.net"
<xcat-user@lists.sourceforge.net>
Date: 07/13/2020 11:54 AM
Subject: [EXTERNAL] [xcat-user] confignetwork issue with default gw &
dns in CentOS 8.1
Running 2.15.1-lenovo2 xCAT release on CentOS 8.1
Compute nodes have 2 NICs:
ens3f0: 1Gb, provisioning net, 172.23.16.121/20, gw is .1
ens1f0: 50Gb highspeed, 172.25.16.121/24, no gw
When I run "confignetwork" as a postbootscript, ens1f0 is set up correctly
with an IP on the hifhspeed net and nothing else. If I run "confignetwork
-s" as a postbootscript, both NICs are setup w/ IP, but both get the
default gateway applied.
Also, no DNS is ever set up. I've defined site.nameservers as well as
network.nameservers & network.domain for the prov network.
lsdef -t network prov
Object name: prov
dhcpserver=<xcatmaster>
domain=hdp.local
gateway=172.23.16.1
mask=255.255.240.0
mgtifname=ens2f0
mtu=1500
nameservers=172.23.16.242
net=172.23.16.0
ntpservers=172.23.16.1
tftpserver=<xcatmaster>
lsdef -t network storage
Object name: storage
mask=255.255.255.0
mgtifname=ens2f0
mtu=1500
net=172.25.16.0
After running confignetwork -s, I cannot remove the errant gw setting from
ens1f0 (nmcli c mod xcat-ens1f0 -ipv4.gateway 172.23.16.1). The only way
I've found to fix ens1f0's gw setting is to set ipv4.never-default to yes
and bounce the interface. To fix DNS, I have to add the DNS to ens3f0:
nmcli c mod xcat-ens3f0 ipv4.dns {DNSSERVER} ipv4.dns-search {DOMAIN} and
restart networkmanager to get things working correctly.
Regards,
Christian Caruthers
Lenovo Professional Services
Mobile: 757-289-9872_______________________________________________
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