Hi,
I was trying to test some scenarios to see what is allowed and what is
not allowed by MHD in respect to starting 2 servers on same port but
different IP address.
The information for passing on the address to MHD_start_daemon api is:
addr_hint.ai_family = AF_UNSPEC; /* IPv4 or IPv6 */
addr_hint.ai_flags = AI_ADDRCONFIG;
addr_hint.ai_socktype = SOCK_STREAM;
For IPv6 addresses, Daemon is started by calling api
MHD_start_daemon(flags, port, MHD_OPTION_SOCK_ADDR, address..) where
MHD_USE_IPv6 is set in flags.
For IPv4, is started same way but without MHD_USE_IPv6.
Below are some of the scenarios that I have tried:
Scenario 1:
* Start S1 on : '0.0.0.0':6666
* Start S2 on: :'fe80::5054:ff:feec:73d1':6666
The MHD_start_daemon api is okay for S1 but fails for S2.
Scenario2:
* Start S1 on : '0.0.0.0':6666
* Start S2 on: '::':6666
MHD_start_daemon call is successful on both.
Scenario3:
* Start S1 on : '192.168.11.11':6666
* Start S2 on: '::':6666
MHD_start_daemon call is successful on both.
Scenario4:
* Start S1 on : '192.168.11.11':6666
* Start S2 on: 'fe80::5054:ff:feec:73d1':6666
MHD_start_daemon call fails on S2.
Both IP addressed are on same interface.Is this how they are supposed to
work? Why is it that it fails in scenario 1 but is okay in scenario 3?
Trying to figure-out if its an issue at my end/expected behavior/issue
in MHD?
Thanks & Regards,
Shikha
