VLAN and Virtual IPs

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David Adams

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VLAN and Virtual IPs

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Is it possible to have a physical interface VLAN'd and the one of those VLAN having an additional virtual IP



Interface  Role       Type      IP Address



Ethernet

eno1	   External   Static    1.2.3.4

eno2       LAN        DHCP	

eno3       LAN        DHCP	

eno4       LAN        Static    192.168.0.1



VLAN

eno2.100   LAN        Static   10.10.11.5

eno2.200   LAN        Static   10.10.9.130

eno2.250   LAN        Static   10.10.9.1

eno3.370   LAN        Static   192.168.255.214

What I would like to do is add Virtual IP, 10.10.11.1 to eno2.100.

I can't just add it to eno2 as the layer 3 switch rejects the packets. So can I create an eno2.100:1 = 10.10.11.1

In IP Settings

Wednesday, October 11 2017, 02:57 PM

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Tony Ellis

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Wednesday, October 11 2017, 05:48 PM - #Permalink

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A VLAN ".5" already existed, so let's try an experiment...
On 'danda' - ClearOS 6.x



[root@danda ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0.5:0

DEVICE=eth0.5:0

TYPE="Virtual"

ONBOOT="yes"

USERCTL="no"

BOOTPROTO="static"

NO_ALIASROUTING="yes"

IPADDR="192.168.5.126"

NETMASK="255.255.255.0"

[/code

On 'karien' - ClearOS 7.x

[code]

[root@karien ~]# cat /etc/sysconfig/network-scripts/ifcfg-enp4s6f1.5:0

DEVICE=enp4s6f1.5:0

TYPE="Virtual"

ONBOOT="yes"

USERCTL="no"

BOOTPROTO="static"

NO_ALIASROUTING="yes"

IPADDR="192.168.5.198"

NETMASK="255.255.255.0"

respective /etc/clearos/network.conf files updated with the new interface and
firewalls restarted..
A ping to the other system was successful either way..



[root@danda ~]# ping -c 5 192.168.5.198

PING 192.168.5.198 (192.168.5.198) 56(84) bytes of data.

64 bytes from 192.168.5.198: icmp_seq=1 ttl=64 time=0.174 ms

64 bytes from 192.168.5.198: icmp_seq=2 ttl=64 time=0.194 ms

64 bytes from 192.168.5.198: icmp_seq=3 ttl=64 time=0.137 ms

64 bytes from 192.168.5.198: icmp_seq=4 ttl=64 time=0.152 ms

64 bytes from 192.168.5.198: icmp_seq=5 ttl=64 time=0.160 ms

--- 192.168.5.198 ping statistics ---

5 packets transmitted, 5 received, 0% packet loss, time 4007ms

rtt min/avg/max/mdev = 0.137/0.163/0.194/0.022 ms



[root@karien ~]# ping -c 5 192.168.5.126

PING 192.168.5.126 (192.168.5.126) 56(84) bytes of data.

64 bytes from 192.168.5.126: icmp_seq=1 ttl=64 time=0.189 ms

64 bytes from 192.168.5.126: icmp_seq=2 ttl=64 time=0.206 ms

64 bytes from 192.168.5.126: icmp_seq=3 ttl=64 time=0.172 ms

64 bytes from 192.168.5.126: icmp_seq=4 ttl=64 time=0.173 ms

64 bytes from 192.168.5.126: icmp_seq=5 ttl=64 time=0.184 ms

--- 192.168.5.126 ping statistics ---

5 packets transmitted, 5 received, 0% packet loss, time 4006ms

rtt min/avg/max/mdev = 0.172/0.184/0.206/0.021 ms

File transfer using scp successful



[root@danda ~]# scp -p dry_run.txt karien:/root/

dry_run.txt                                   100% 2414KB   2.4MB/s   00:00

So that works between two ClearOS systems... All edits by hand - not sure if webconfig would support this
That's the closest I can get to your request with what exists here...