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Cell connection with or without Dialer-Interface?

Hi,

 

i would like to set up a Cisco 2921 ISR G2 with an EHWIC-4G-LTE-G to connect to an UMTS/LTE network.

 

I found two different ways to configure the connection:

 

1) Directly under the Cell-Interface

interface Cellular0/1/0
 ip address negotiated
 ip nat outside
 ip virtual-reassembly in
 encapsulation slip
 dialer in-band
 dialer idle-timeout 0
 dialer string lte
 dialer-group 1
 async mode interactive
!

 

2) In conjunction with a Dialer-Interface:

interface Cellular0/1/0
 ip address negotiated
 encapsulation slip
 dialer in-band
 dialer pool-member 1
 async mode interactive
 routing dynamic


interface Dialer1
 ip address negotiated
 encapsulation slip 
 dialer pool 1 
 dialer idle-timeout 0 
 dialer string lte 
 dialer persistent 
 dialer-group 1

 

Could someone please explain which one would be the preferred method, or in other words: Does using a dialer - interface has any advantages
over the direct method?

 

Thanks!

1 REPLY

Hello.Per Cisco documentation

Hello.

Per Cisco documentation, the prefered method is to use Dialer interface.

PS: not sure why; maybe they extend functionality of Cellular interface to run more than one Dialer on a single physical interface.

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