10-29-2008 12:44 PM - edited 03-06-2019 02:12 AM
I have some equipment that does not support secondary IPs (not Cisco [sorry didn't know where else to go]). Is there a possible workaround for this? The device is a L3 switch, so I can create SVIs, but I am afraid that may not work...Any thoughts?
Here's the situation:
Currently using an EOL (POS) firewall/router as the corporate routing device. I want to replace, however, the current device is using numerous secondary IP addresses (ran out of the primary), and the L3 switch that I have does not support secondary IPs (at least not that I have noticed from the CLI and from looking online). I was looking for a way to replace the current router with the switch without having to re-ip the machines. Obviously, this is no where near the ideal solution, but mgmt wants this done ASAP.
Thanks,
Richard
10-29-2008 12:50 PM
Not Cisco? Well, you can create an SVI, assign an address, and then change your devices gateway to point to it. I'm not sure what you're trying to do though.
--John
10-29-2008 01:50 PM
John,
What I am trying to do is to have two separate machines on two different subnets be able to get to communicate. Seems simple and basic, but I do not know what ports on the L2 switches need to be in what VLAN(s), since the ports on the L2 switches goto both subnets with no documentation. Currently, the L2 switches uplink to another L2 switch, that uplinks to the EOL firwall/router on one port. That one port is using secondary IP addresses.
I don't know exactly what I want to do, but I need to be able to have the machines on the separate ip schemes to be able to communicate with each other.
I have thought about using the PVID, however, that will only work for one of the subnets, since the SVI only supports a primary IP address.
I hope this clarifies more than confuses,
Richard
10-30-2008 10:43 PM
If you create SVIs you will need to add proper routing in the firewall/router, but other than that, it should work.
The other option would be to buy some better equipment, you can get things on ebay for next to nothing that would better address your needs.
10-31-2008 06:26 AM
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