[CentOS] Need help getting two NICs to work on CentOS 7
Frank Cox
theatre at melvilletheatre.com
Mon Nov 7 07:16:00 UTC 2016
On Mon, 7 Nov 2016 02:00:24 -0500
Sean Son wrote:
> When I ping the VM, the first NIC's IP is
> not pingable at all, but the second NIC's IP is pingable. How do I
> configure the networking so that both IPs are pingable and the VM is
> reachable via both IPs?
The last time I did that I did it on Centos 5. Here are my notes from back then.
First, add two lines to /etc/iproute2/rt_tables, so it looks like this:
#
# reserved values
#
255 local
254 main
253 default
0 unspec
#
# local
#
#1 inr.ruhep
50 access1
60 access2
Then add the following routes:
ip route add 1.2.3.0/24 dev eth1 table access1
ip route add default via 1.2.3.1 dev eth1 table access1
ip rule add from 1.2.3.178/32 lookup access1
ip route add 1.2.3.0/24 dev eth2 table access2
ip route add default via 1.2.3.1 dev eth2 table access2
ip rule add from 1.2.3.180/32 lookup access2
Of course, in this example 1.2.3.178 is the IP address of the first nic and 1.2.3.180 is the address of the second nic.
--
MELVILLE THEATRE ~ Real D 3D Digital Cinema ~ www.melvilletheatre.com
More information about the CentOS
mailing list