Hi Folks,
I'm not network savy. If something here sounds way off-base, it probably is - please set me straight!
I need to test a network device which has three ethernet ports - each with a unique IP address. The 3 IP addresses are always the same (say) 192.168.1.1, 192.168.2.1, 192.168.3.1 - in other words, it's the SECOND LSbyte that varies.
We want to have several of these devices simultaneously connected-to/communicating-on a network.
My idea was to put each device under a router which employs NAT, so that we can talk to our device at 192.168.128.1, .2, and .3 where these addresses are translated as follows:
192.168.128.1 <=> 192.168.1.1
192.168.128.2 <=> 192.168.2.1
192.168.128.3 <=> 192.168.3.1
If we can do this, then we can connect-to/test a second device simultaneously, by using a second router mapping IP addresses as follows:
192.168.129.1 <=> 192.168.1.1
192.168.129.2 <=> 192.168.2.1
192.168.129.3 <=> 192.168.3.1
To date, I've purchased two LINKSYS routers which appear to be incapable of accommodating our needs. The two router models are: BEFSR41 and WRT54GL.
The problem is that the LAN-side subnet mask is constrained to 255.255.255.? - the SECOND LSbyte can't vary. This seems to allow for only one of a DUT's IP addresses.
Recently, when I described the problem to the salesman at FRYS, he immediately grabbed the WRT54GL - pointing to the "OPEN SOURCE" blurb - which seems to hint at a high degree of flexibility - if one is willing to get their fingers dirty.
I'm a programmer, ready and willing, but is this router Able? Is there a better router (switch) option?
Thanks!
I'm not network savy. If something here sounds way off-base, it probably is - please set me straight!
I need to test a network device which has three ethernet ports - each with a unique IP address. The 3 IP addresses are always the same (say) 192.168.1.1, 192.168.2.1, 192.168.3.1 - in other words, it's the SECOND LSbyte that varies.
We want to have several of these devices simultaneously connected-to/communicating-on a network.
My idea was to put each device under a router which employs NAT, so that we can talk to our device at 192.168.128.1, .2, and .3 where these addresses are translated as follows:
192.168.128.1 <=> 192.168.1.1
192.168.128.2 <=> 192.168.2.1
192.168.128.3 <=> 192.168.3.1
If we can do this, then we can connect-to/test a second device simultaneously, by using a second router mapping IP addresses as follows:
192.168.129.1 <=> 192.168.1.1
192.168.129.2 <=> 192.168.2.1
192.168.129.3 <=> 192.168.3.1
To date, I've purchased two LINKSYS routers which appear to be incapable of accommodating our needs. The two router models are: BEFSR41 and WRT54GL.
The problem is that the LAN-side subnet mask is constrained to 255.255.255.? - the SECOND LSbyte can't vary. This seems to allow for only one of a DUT's IP addresses.
Recently, when I described the problem to the salesman at FRYS, he immediately grabbed the WRT54GL - pointing to the "OPEN SOURCE" blurb - which seems to hint at a high degree of flexibility - if one is willing to get their fingers dirty.
I'm a programmer, ready and willing, but is this router Able? Is there a better router (switch) option?
Thanks!
