Gateway of different range is not working in KVM node

Community Support
21

Hello, @feldsam here are my configuration,

KVM Node 1

[root@CentOS-79]# cat ifcfg-prv1
DEVICE=“prv1”
BOOTPROTO=static
ONBOOT=yes
TYPE=Bridge
IPADDR=20.20.15.1
NETMASK=255.255.255.240
GATEWAY=5.9.XX.XX
BROADCAST=20.20.15.15
DNS1=8.8.8.8
DNS2=8.8.4.4
STP=off
DELAY=0
VLAN=yes
ZONE=internal

[root@CentOS-79]# cat ifcfg-eno1.4001
DEVICE=eno1.4001
BOOTPROTO=none
ONBOOT=yes
VLAN=yes
BRIDGE=prv1

Vnetwork template

oneadmin@openfontend:~$ onevnet show 12
VIRTUAL NETWORK 12 INFORMATION
ID : 12
NAME : NEW-PRIVATE-NETWORK-5.9
USER : oneadmin
GROUP : oneadmin
LOCK : None
CLUSTERS : 0
BRIDGE : prv1
VN_MAD : bridge
AUTOMATIC VLAN ID : NO
AUTOMATIC OUTER VLAN ID : NO
USED LEASES : 1

VIRTUAL NETWORK TEMPLATE
BRIDGE=“prv1”
BRIDGE_TYPE=“linux”
DESCRIPTION=“NEW-PRIVATE-NETWORK-5.9”
DNS=“8.8.8.8”
GATEWAY=“20.20.15.1”
GUEST_MTU=“1400”
NETWORK_ADDRESS=“20.20.15.0”
NETWORK_MASK=“255.255.255.240”
OUTER_VLAN_ID=""
PHYDEV=""
SECURITY_GROUPS=“0”
VLAN_ID=""
VN_MAD=“bridge”

ADDRESS RANGE POOL
AR 0
SIZE : 16
LEASES : 1

KVM Node 2

[root@CentOS-79-6s]# cat ifcfg-prv1
DEVICE=“prv1”
BOOTPROTO=static
ONBOOT=yes
TYPE=Bridge
IPADDR=20.20.15.17
NETMASK=255.255.255.240
GATEWAY=188.40.XX.XX
BROADCAST=20.20.15.31
DNS1=8.8.8.8
DNS2=8.8.4.4
STP=off
DELAY=0
VLAN=yes
ZONE=internal

[root@CentOS-79-6s]# cat ifcfg-eno1.4001
DEVICE=eno1.4001
BOOTPROTO=none
ONBOOT=yes
VLAN=yes
BRIDGE=prv1

oneadmin@openfontend:~$ onevnet show 11
VIRTUAL NETWORK 11 INFORMATION
ID : 11
NAME : NEW-PRIVATE-VNETWORK-188
USER : oneadmin
GROUP : oneadmin
LOCK : None
CLUSTERS : 0
BRIDGE : prv1
VN_MAD : bridge
AUTOMATIC VLAN ID : NO
AUTOMATIC OUTER VLAN ID : NO
USED LEASES : 1

VIRTUAL NETWORK TEMPLATE
BRIDGE=“prv1”
BRIDGE_TYPE=“linux”
DNS=“8.8.8.8”
GATEWAY=“20.20.15.17”
GUEST_MTU=“1400”
NETWORK_ADDRESS=“20.20.15.16”
NETWORK_MASK=“255.255.255.240”
PHYDEV=""
SECURITY_GROUPS=“0”
VN_MAD=“bridge”

ADDRESS RANGE POOL
AR 0
SIZE : 16
LEASES : 1

22

VN_MAD == bridge do automatic bridge creation/deletion on KVM nodes. You have missing PHYDEV property, so driver don’t know which physical device need to add to bridge. On the other hand, when you configure network bridge manualy via ifcfg scripts, then you should use just VN_MAD == dummy (or FW for SecurityGroups usage)

Second KVM node if fact doesnt need private IPs set, if you dont need them. Also you set gateway to 188.40.XX.XX, byt why? KVM2 node doesnt have any other interface with internet access? How this server knows where is 188.40.XX.XX address???

I don;t know what you try to achieve with VMs, but from your last posts, you want to assign public IPs to your VMs, right?

You should draw network diagram.

23

Hi, @feldsam Just want the access between VM1 and VM2 through private IP.

test
test782×378 26.2 KB

24

So in that case assing IPs from range 20.20.15.0/28 to the VMs. Why you added some 10.10.x.x?

1 Like
25

@feldsam Ohh sorry that is 20.20.15.2 and 20.20.15.17.

26

Thank you so much

27

thank you for sharing with us.

28

I don’t know how your topology looks, paste here infocnfig output on both nodes and network templates

29

i’m still confused about it. . .