topic Re: Setting Multiple IP Addresses on a Single Interface using UCX in Operating System - OpenVMS

Setting Multiple IP Addresses on a Single Interface using UCX

robert_449 — Mon, 18 Jun 2007 08:34:43 GMT

There is no good direction on this.

When I use @sys$manager:ucx&config and set a new ip address, it shows on the list of "this interface has multiple ip addresses" but only one of then responds to ping requests.

How do I set one interface to use both 192.168.1.1 and 192.168.1.2 (I need this for testing purposes - trying to mimic a server with two nics).

Once done, how do I remove it?

Thanks
Bob

Re: Setting Multiple IP Addresses on a Single Interface using UCX

Ian Miller. — Mon, 18 Jun 2007 08:43:05 GMT

what version?

You can use aliases
http://h71000.www7.hp.com/doc/73final/6526/6526pro_001.html#network_alias_sec

or pseudointerfaces
http://h71000.www7.hp.com/doc/73final/6526/6526pro_005.html#lower_pseudo_i_sec

Re: Setting Multiple IP Addresses on a Single Interface using UCX

robert_449 — Mon, 18 Jun 2007 08:48:28 GMT

The example you sent was for TCP/IP. We are still using UCX. For the life of me I cannot find out where to see the version number!

Re: Setting Multiple IP Addresses on a Single Interface using UCX

Wim Van den Wyngaert — Mon, 18 Jun 2007 08:55:27 GMT

ucx sho vers
sh sys/noproc

To my knowledge, alias was not present. Only cluster alias (can be used too but is something special).

Wim

Re: Setting Multiple IP Addresses on a Single Interface using UCX

Ian Miller. — Mon, 18 Jun 2007 08:56:11 GMT

$ UCX SHOW VERSION

I think the pseudo interface commands work for UCX.

Re: Setting Multiple IP Addresses on a Single Interface using UCX

robert_449 — Mon, 18 Jun 2007 08:58:04 GMT

Thanks. It is UCX version 3.3

Re: Setting Multiple IP Addresses on a Single Interface using UCX

Heinz W Genhart — Mon, 18 Jun 2007 09:30:31 GMT

Hi Robert

you could configure a cluster alias with the second address.
I don't remember UCX V3.3 but if allready available for this old version you could also use failsafe IP.

Regards

Geni

Re: Setting Multiple IP Addresses on a Single Interface using UCX

MTHollinger — Tue, 19 Jun 2007 08:41:42 GMT

Yeah, it's probably time to upgrade. For now, you can also use the UCX SHOW CONFIGURATION INTERFACE command to see the configured interfaces. If WE0 is the primary, then pseudointerfaces named WEA0 and WEA1 and so forth will show additional addresses.

Don't forget to do a UCX SET PROTOCOL IP /FORWARD (and UCX SET CONFIGURATION PROTOCOL IP /FORWARD to make it permanent). When you have multiple local addresses, it's frequently necessary to "forward" internally so that outbound packets can follow routes associated with either pseudointerface.

- Mark

Re: Setting Multiple IP Addresses on a Single Interface using UCX

Wim Van den Wyngaert — Tue, 19 Jun 2007 08:51:19 GMT

This may help you (it's for 3.3)
http://groups.google.be/group/comp.os.vms/browse_frm/thread/ca6eac514010b0b1/ef8daee7b9df8ab8?lnk=st&q=pseudo+interfaces++ucx&rnum=1&hl=en#ef8daee7b9df8ab8

Wim