Forum Discussion
Linda_01_162621
Nimbostratus
NimbostratusCannot access the internet using a default gateway virtual server
I am newbie, I am using a BIG-IP 2000 (11.6.0) version.
As a start, I want to create a simple network:
Client PC
10.0.0.1 255.255.255.0 GW: 10.0.0.254
*connected to int VLAN. i.e...
You must disable address and port translation on your Virtual Server. These are under the "Advanced" configuration. Without that, all traffic will be forwarded to the pool member using it's IP address as the destination. Moreover, assuming you want to forward more than TCP traffic, you must change the Protocol to "*All Protocols". You almost certainly want to limit the VS to just your internal VLAN (change "VLAN and Tunnel Traffic" to "Enabled on..." and move the internal VLAN to the "Selected" box).
Incidentally, this can be achieved a different way. If you set the BIG-IP default route to 172.16.100.17, you could then use a "Forwarding (IP)" Virtual Server type, which uses the BIG-IP route table to forward traffic.
- I had the same problem and I found the solution by changing the vmnet0 bridge from automatic to the associated Network Ethernet Adapter. Vmware>Edit>Virtual Network Adapter>vmnet0
VernonWells
Employee
EmployeeSince you enabled automap SNAT, then when the traffic egresses the BIG-IP (toward the router), the BIG-IP changes the source address from that of the client to a self IP (of the BIG-IP) on the egress VLAN. This suggests that the router either does not have a route back to the client netblock, or that its route to the client netblock is not forwarded through the BIG-IP. In this case, the application of automap SNAT would make traffic work because the router and the BIG-IP share IP addresses in a common netblock on a common VLAN. Naturally, the router will have a route to a directly connected network.