Contivity 221 problem

Contivity 221 problem
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Subject Author Date
Contivity 221 problem Ray 03-01-2006
Posted by Ray on March 1, 2006, 7:45 pm
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I'm having a hard time getting a Contivity 221 to set up a Branch Office
tunnel to a Contivity 1050. The config is ABOT.

Everything appears to be programmed correctly but the tunnel won't
establish.

Looking at the logs on the 1050 it is reported that there is a 'Diffie
Hellman group mismatch' yet both sides are setup as 3DES/MD5 and DH2 set on
the 221. The 1050 is set up with Triple DES with Group 2 (1024 bit prime).

Anybody got any ideas?????

thanx

Ray



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Posted by Nortec in MN on March 15, 2006, 11:12 pm
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Check your remote IP address ranges.

> I'm having a hard time getting a Contivity 221 to set up a Branch Office
> tunnel to a Contivity 1050. The config is ABOT.
>
> Everything appears to be programmed correctly but the tunnel won't
> establish.
>
> Looking at the logs on the 1050 it is reported that there is a 'Diffie
> Hellman group mismatch' yet both sides are setup as 3DES/MD5 and DH2 set
> on
> the 221. The 1050 is set up with Triple DES with Group 2 (1024 bit
> prime).
>
> Anybody got any ideas?????
>
> thanx
>
> Ray
>
>



Posted by Ray on March 21, 2006, 7:36 pm
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Nortec in MN wrote:

> Check your remote IP address ranges.
>
>> I'm having a hard time getting a Contivity 221 to set up a Branch Office
>> tunnel to a Contivity 1050. The config is ABOT.
>>
>> Everything appears to be programmed correctly but the tunnel won't
>> establish.
>>
>> Looking at the logs on the 1050 it is reported that there is a 'Diffie
>> Hellman group mismatch' yet both sides are setup as 3DES/MD5 and DH2 set
>> on
>> the 221. The 1050 is set up with Triple DES with Group 2 (1024 bit
>> prime).
>>
>> Anybody got any ideas?????
>>
>> thanx
>>
>> Ray
>>
>>
No - checked that.

The tunnel will come up if I use a fixed WAN address on the Contivity 221.
If I use DHCP then the problem arises....

Ray

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other useful resources:
The Federal Communications Commission (FCC)
Telecommunications Industry Association
Electronic and Software Security Products and Services
International Telecommunication Union

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