871: dialer interface doesn't get an ip address from isp

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Apr 20th, 2008
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Hi all,

I'm trying to get the attched config to work. The problem is with the dialer interface (I think). Although I 'm asking an ip-address from the ISP, with ip address negotiated, it is not delivered.

I get the following message with 'debug ip nat': dialer not up for dialer1.

Dialer1 is up, line protocol is up (spoofing)

I get the following message with 'debug dialer': cannot place call, no dialer string !!!

When I let the F4 int dhcp for an address, it gets one. And further, when I substitute Dialer1 with F4 in the lines:

- ip route Dialer1 permanent

- ip nat inside source list 1 interface Dialer1 overload

it works. but thats not how I want it.

Any ideas?




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paolo bevilacqua Sun, 04/20/2008 - 13:42
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Hi, dialer interfaces are for ppp, not dhcp. Use int FA4 for external address, or what are you trying to do ?

jlaay-diode Wed, 04/23/2008 - 11:39
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What I want to do is to get an IPsec/VPN tunnel over Internet between two sites.

I tried the example config mentioned in the following example config.



This config uses a Dialer as it would be suggested by Cisco instead of using a physical interface.

That why actually.

I changed the worksheet and use solely fastethernet 4 interface and then it works. What I 'm then missing is the possibilty to use PAP/CHAP check (or not?).



paolo bevilacqua Fri, 04/25/2008 - 08:29
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Hi, you do not have PPP hence dialer does not apply, neither do pap/chap.

Just configure ipsec/vpn one the FA4 interface.

If you want also to control QoS, etc, get an 877 and interface directly to the ADSL.


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