I have developed LAC and PPP client and, I tried to interoperate my lac with cisco 7500 LNS.(IOS 12.3(4)T)
L2TP Tunnel establishment waw successed. but, on PPP authentication state, Cisco 7500 doesn't send CHAP Challange packet to my ppp client.
at this time, CISCO LNS's Session state is wt-sss ...
I think that CISCO's Subscriber service switch (sss) feature makes a this problem.
How can I disable SSS feature. and, How can I make Cisco LNS send CHAP Challenge to my ppp client.
on the IOS ver 12.0, there is no problem like this.
I want for cisco to authenticate my ppp client with plain CHAP protocol without sss feature.