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тАО12-12-2004 12:59 AM
тАО12-12-2004 12:59 AM
IP Address for NIC cards
Thanks in advance
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тАО12-12-2004 02:11 AM
тАО12-12-2004 02:11 AM
Re: IP Address for NIC cards
On a practical basis if you are using a class C subnet, the most ip addresses you can configure is limtited by the network configuration.
Class C limit is 253 IP addresses.
I've never tried more than a couple of dozen. This was to provide ssl websites that needed their own ip address.
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тАО12-13-2004 04:16 AM
тАО12-13-2004 04:16 AM
Re: IP Address for NIC cards
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тАО12-13-2004 04:59 AM
тАО12-13-2004 04:59 AM
Re: IP Address for NIC cards
INTERFACE_NAME[0]=lan1
IP_ADDRESS[0]=10.96.34.12
SUBNET_MASK[0]=255.255.255.0
BROADCAST_ADDRESS[0]=10.96.34.255
INTERFACE_STATE[0]=up
DHCP_ENABLE[0]=0
Are we saying that I can just keep on configuring IP addresses to the same card?:
INTERFACE_NAME[1]=lan1
IP_ADDRESS[1]=10.96.34.13
...
INTERFACE_NAME[2]=lan1
IP_ADDRESS[2]=10.96.34.14
...
MC/ServiceGuard let's you assign other IP addresses to the same card, so to speak, but you have to buy MC/SG.
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тАО12-13-2004 05:09 AM
тАО12-13-2004 05:09 AM
Re: IP Address for NIC cards
Yes, you can configure multiple IP addresses for a given NIC. In fact, ServiceGuard relies on this functionality.
For example, I have 2 hosts. Each host has a NIC with a static IP address on it. In addition, each host belongs to a ServiceGuard cluster. In that cluster are two packages - each with it's own static IP address (different than the first two). ServiceGuard actives those IP addresses on the NICs on the physical hosts.
It shows as
lan1 (host address)
lan1:1 (package address)
Note that you do not need S/G to do this.
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тАО12-13-2004 05:18 AM
тАО12-13-2004 05:18 AM
Re: IP Address for NIC cards
And yes - multiple ips show as:
lan0
lan0:1
lan0:2
etc...in a netstat -in
Rgds...Geoff
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тАО12-13-2004 08:14 AM
тАО12-13-2004 08:14 AM
Re: IP Address for NIC cards
mark
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тАО12-13-2004 09:01 AM
тАО12-13-2004 09:01 AM
Re: IP Address for NIC cards
There is no hard limit on the number of IP's you can configure. I believe the only limit is that they have to be on the same subnet.
You can have a primary and many aliases on a single NIC.
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тАО12-13-2004 09:29 AM
тАО12-13-2004 09:29 AM
Re: IP Address for NIC cards
The point about NM IDs being a possible limiter is a good one to consider. I suppose a search of the include files might be in order, or of the MIB definitions - I believe it comes from the MIB definitions for ifIndex. If it is a short, then we are talking about 32 or 64K IPs. If it is an int then 2G or 4G.