problem with 2600 router

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Jul 6th, 2008
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hi, i have some problem with my cisco 2621 router.

i want to configure my 2621 as a CPE PPPoE client. my device sit behing a cable modem.

when i try to connect, wan interface (ethernet) and DIALER interface are up , but i don't receive dynamically an IP address from my ISP.

i'm figuring out that the problem is ppp authentication but when i use debug ppp authentication and negociation to solve problem, i do not seen anything. debug ppp does not working.

the problem can, be my IOS since i dont see any logging for ppp debugging.

what is problem ? i muist upgrade my IOS ? thank for help

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paolo bevilacqua Sun, 07/06/2008 - 09:22
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Try debug "ppp negotiation". If you don't see anything, then check "debug pppoe".


piatthi1983 Mon, 07/07/2008 - 00:00
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i using debug ppp authentication and

debug ppp negociation command


but i don't see anything

paolo bevilacqua Mon, 07/07/2008 - 00:05
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Then as mentioned above the problem can be on the PPPoE part, that yous can troubleshoot with the appropriate debug and show commands.

piatthi1983 Mon, 07/07/2008 - 02:48
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i solved my problem, all are up, now my cisco router receive ip address dynamically from my ISP ;


to solved my problem, i have just reboot the cable modem which is before my device

paolo bevilacqua Mon, 07/07/2008 - 02:51
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This happens because PPPoE was still open to the device you where using instead of the router, so it was needed to reinitialize that.


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