Forum Discussion
Junaid_Subhani_
Nimbostratus
NimbostratusUnable to connect multiple networks
Hi all,
I downloaded the trial VM for F5 LTM load balancer and ran it in my vCloud environment. eth0 is able to get an IP from the corporate network using DHCP.
The issue is that when I try to attach eth1 OR eth2 to a virtual network, it is unable to connect. The interface shows UP, I assign an IP statically but I am unable to ping any other node.
Does anyone know why is this the case ? I need to connect the internal and external network to interfaces eth1 and eth2 respectively while eth0 is for management.
BR, Junaid
eth0 is going to be the management interface, which by default is un-tagged and can use DHCP. eth1 and eth2 are going to be traffic interfaces. To assign a self IP to a traffic interface it needs to be associated with a VLAN either un-tagged or tagged. You can create VLANs, assign interfaces to them, and create self IPs either from tmsh or the GUI. Self IPs are created in VLANs and VLANs are assigned to interfaces. It sounds like in your case you want one selfIP assigned to each interface and each virtual interface is in a different port group in vCloud. In this case, you will create a VLAN named "Internal" and assign eth1 to that VLAN un-tagged. You will then also, create a VLAN named "External" and assign eth2 to that VLAN un-tagged. The you can create you selfIPs for each of the VLANs. All of this should be able to be done in tmsh via "create net ..." https://support.f5.com/kb/en-us/solutions/public/14000/900/sol14961.html
Brad_ParkerCirrus
Have you assigned each interface to a VLAN?
Junaid_Subhani_Hi Brad,
By assigning VLAN, do you mean doing it using the web interface ?
I am trying to assign IP addresses manually using the OS and testing connectivity to the internal and external networks (ping them) before I even login using the web interface!
.
- Brad_Parker_139
Nacreous
eth0 is going to be the management interface, which by default is un-tagged and can use DHCP. eth1 and eth2 are going to be traffic interfaces. To assign a self IP to a traffic interface it needs to be associated with a VLAN either un-tagged or tagged. You can create VLANs, assign interfaces to them, and create self IPs either from tmsh or the GUI. Self IPs are created in VLANs and VLANs are assigned to interfaces. It sounds like in your case you want one selfIP assigned to each interface and each virtual interface is in a different port group in vCloud. In this case, you will create a VLAN named "Internal" and assign eth1 to that VLAN un-tagged. You will then also, create a VLAN named "External" and assign eth2 to that VLAN un-tagged. The you can create you selfIPs for each of the VLANs. All of this should be able to be done in tmsh via "create net ..." https://support.f5.com/kb/en-us/solutions/public/14000/900/sol14961.html
- Junaid_Subhani_Thank You Brad Ok so here is what I did: Using cli in tmsh mode: create net vlan internal interfaces add { 1.1 } eth1 for internal traffic create net vlan external interfaces add { 1.2 } eth2 for external traffic Using Web Console: Goto Netwrok -> Self IPs -> Create Name: Internal IP Address: 10.1.1.1 Netmask: 255.255.255.0 VLAN: internal the one I made above --Update-- Name: External IP Address: 12.1.1.1 Netmask: 255.255.255.0 VLAN: external the one I made above --Update-- Should this be enough to set the IPs on the interfaces on the load balancer ? BR, Junaid
- Brad_Parker_139Yep, that should give you basic layer 2 connectivity in those two subnets. Now if you want basic "routing" through the LTM from the internal VLAN to the outside world you will need a default route and a wildcard Forwarding IP virtual server(0.0.0.0:0) and possibly a SNAT configuration on that if your network requires it. That should do it for the basic connectivity. https://support.f5.com/kb/en-us/solutions/public/7000/500/sol7595.html
- Brad_Parker
eth0 is going to be the management interface, which by default is un-tagged and can use DHCP. eth1 and eth2 are going to be traffic interfaces. To assign a self IP to a traffic interface it needs to be associated with a VLAN either un-tagged or tagged. You can create VLANs, assign interfaces to them, and create self IPs either from tmsh or the GUI. Self IPs are created in VLANs and VLANs are assigned to interfaces. It sounds like in your case you want one selfIP assigned to each interface and each virtual interface is in a different port group in vCloud. In this case, you will create a VLAN named "Internal" and assign eth1 to that VLAN un-tagged. You will then also, create a VLAN named "External" and assign eth2 to that VLAN un-tagged. The you can create you selfIPs for each of the VLANs. All of this should be able to be done in tmsh via "create net ..." https://support.f5.com/kb/en-us/solutions/public/14000/900/sol14961.html
- Junaid_Subhani_Thank You Brad Ok so here is what I did: Using cli in tmsh mode: create net vlan internal interfaces add { 1.1 } eth1 for internal traffic create net vlan external interfaces add { 1.2 } eth2 for external traffic Using Web Console: Goto Netwrok -> Self IPs -> Create Name: Internal IP Address: 10.1.1.1 Netmask: 255.255.255.0 VLAN: internal the one I made above --Update-- Name: External IP Address: 12.1.1.1 Netmask: 255.255.255.0 VLAN: external the one I made above --Update-- Should this be enough to set the IPs on the interfaces on the load balancer ? BR, Junaid
- Brad_ParkerYep, that should give you basic layer 2 connectivity in those two subnets. Now if you want basic "routing" through the LTM from the internal VLAN to the outside world you will need a default route and a wildcard Forwarding IP virtual server(0.0.0.0:0) and possibly a SNAT configuration on that if your network requires it. That should do it for the basic connectivity. https://support.f5.com/kb/en-us/solutions/public/7000/500/sol7595.html
- Junaid_Subhani_
Thanks Bard. It all worked ! Much appreciated :)
BR, Junaid Subhani
- Brad_ParkerPlease, mark the answer as correct so the question shows as answered to the community.
- Junaid_Subhani_Done.