[lwip-users] Using multiple IP addresses on one interface

[John Pote]

Hello all,

 

I am new to LWIP and working on extending some legacy code using the LWIP stack. It would be useful now if we could have a number of IP addresses on the one network interface.

I found the thread “LWIP and second IP feasible?” dated 5 Mar 2011 (http://lists.nongnu.org/archive/html/lwip-users/2011-03/msg00024.html)  which indicates it is possible with some effort.

My situation is perhaps a little simpler in that consecutive, statically allocated IP addresses will be used. So I wondered if a single IP address could be assigned to the IP stack with an appropriate subnet mask. EG

IP            192.168.1.16

Mask     255.255.255.252

The subnet would then consist of the 4 addresses 192.168.1.16/17/18/19.

 

Would the rest of LWIP stack manage the above arrangement correctly? I will need to open a listening socket on each IP address.

 

Any thoughts and help appreciated,

JOhn

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