I want to configure a connection between a remote Pc (with a modem) and a Cisco router 801 with a bri interface. I have configured the option "dialer incoming-calls data" on the bri0 interface to treat allways all calls as a data. When the PC rangs, the router detects the incoming call as a DATA type, brings up one of the two isdn channels and starts to negotiate the LCP but at last of some chances disconnects because of time out.
There's somebody who knows what on earth could be happenning?
Below you can see the "sh debug" of the cisco 801 when the incoming call is produced. Thanks in advanced.
I do not believe that you can dial an ISDN modem directly using a standard analog modem. It appears from your message that this is what you are doing. I think you need to use an ISDDN modem, using an ISDN line on the computer you are dialing from.
Are you sure there's no way to dial from an analog modem to an ISDN line connected to a Cisco 801?
If you connnect the ISDN line to a server and you use an analog modem to dial in and to connect to the server it funcitons OK, so why you can´t do it with the router? If you look through the debug you can see a problem of time out during de LCP phase, might it be a problem of sincronization?
Seems to me as if the LCP negotiation is one sided, no input packets received from the PC. One of the first negotiations should be the authorisation protocol (PAP, CHAP). Might be worth checking the PC's config. and also the authorisation protocol in use. If you do not want to use a particular one, it is best to specifically refuse it in the interface config. on the router, otherwise the two ends may never agree. Also sometimes it is best to use a one way authentication, so that the PC is authenticated, but it doesn't try to authenticate the router.
Question We run asr9001 with XR 6.1.3, and we have a very long delay to
login w/ SSH 1 or 2 to the device compare to IOS device. After
investigation, the there is 1s delay between the client KEXDH_INIT and
the server (XR) KEXDH_REPLY. After debug ssh serv...
Introduction The purpose of this document is to demonstrate the Open
Shortest Path First (OSPF) behavior when the V-bit (Virtual-link bit) is
present in a non-backbone area. The V-bit is signaled in Type-1 LSA only
if the router is the endpoint of one or ...
Hi, I am seeing quite a few issues with patch install and wanted to
share my experience and workaround to this. Login to admin via CLI, then
access root with the “shell” command Issue “df –h” and you’ll probably
see the following directory full or nearly ...