iPXE to redirect boot to another PXE server

[Kirioss]

I may not understand your answer, but the IP I need to modify is not the client IP but the PXE server IP given by the DHCP (I want to overwrite it regarding some external rules)

My ugly code modification (for testing purposes) is in start_pxebs in src/net/udp/dhcp.c

Code:

/* Dump out PXE server lists */
    DBGC ( dhcp, "DHCP %p attempting", dhcp );
    for ( ip = dhcp->pxe_attempt ; ip->s_addr ; ip++ )
        DBGC ( dhcp, " %s", inet_ntoa ( *ip ) );
         inet_aton ("10.1.2.3",ip);      // <---- HERE
    DBGC ( dhcp, "\n" );