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EHWIC-3G-HSPA+7 - not supported in vrf setups?

Unanswered Question

hi,


we set up a 1941 with c1900-universalk9-mz.SPA.151-4.M3.binand tried to bring up

EHWIC-3G-HSPA+7 in the vrf.


config:


chat-script gsm "" "AT!SCACT=1,1" TIMEOUT 60 "OK"

!

ip vrf #99

description internet

rd 10.1.1.1:99

!

!

interface Cellular0/0/0

ip vrf forwarding #99

ip address negotiated

encapsulation slip

dialer in-band

dialer string gsm

dialer-group 1

async mode interactive

!

ip route vrf #99 0.0.0.0 0.0.0.0 Cellular0/0/0

ip route 0.0.0.0 0.0.0.0 Cellular0/0/0

!

dialer-list 1 protocol ip permit

!


Result:


Router#ping vrf #99 4.2.2.2

% VRF #99 does not have a usable source address

Router#


Router#ping vrf #99 4.2.2.2 source cellular 0/0/0

% VRF #99 does not have a usable source address

Router#


if we move the cellular 0/0/0 to GRT


Router(config)#int cell 0/0/0

Router(config-if)#sh

Router(config-if)#no ip vrf forw #99

Router(config-if)#ip addr nego

Router(config-if)#no sh

Router(config-if)#end

Router#


Router#ping 4.2.2.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 4.2.2.2, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 68/72/84 ms

Router#


Is this interface not supported in vrf setups?

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Giuseppe Larosa Wed, 05/09/2012 - 07:43
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Hello Markus,

there is nothing listed in HWIC configuration guide


see

http://www.cisco.com/en/US/docs/routers/access/1800/1861/software/feature/guide/mrwlsgsm.html#wp1149000


However, the cellular interface is an asynchronus interface ( async mode interactive) and my guess is that this the reason why VRF is not supported on it.


For example for correct support on ISDN BRI or PRI interfaces the command dialer map vrf  aware had been introduced.


http://www.cisco.com/en/US/docs/ios/dial/command/reference/dia_d1.html#wp1013440


I had the same symptoms with BRI or PRI interfaces


Hope to help

Giuseppe

With the older 3G card the setup is supported, maybe I have to raise an TAC case



Mit freundlichen Grüßen / with best regards


Markus Vögele


Lufthansa Systems AG

Department FRA AI/B-NP

LIC A, Room 2.1.059

Am Weiher 24

D-65451 Kelsterbach

Phone: +49 69 696-9572

Fax: +49 69 696-98-95724

Mobile: +49 151 58920178

E-Mail: [email protected]

Internet:www.LHsystems.com



Von: giuslar

Gesendet: Wednesday, May 09, 2012 04:43 PM

An: VOEGELE, MARKUS

Betreff: - Re: EHWIC-3G-HSPA+7 - not supported in vrf setups?


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Re: EHWIC-3G-HSPA+7 - not supported in vrf setups?

created by Giuseppe Larosa in WAN, Routing and Switching - View the full discussion

Giuseppe Larosa Wed, 05/09/2012 - 09:03
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    Founding Member

Hello Markus,


I agree it is wise to open a service request


Best Regards

Giuseppe

Vasilii Mikhail... Mon, 07/08/2013 - 03:18
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please refer to design at http://www.cisco.com/en/US/docs/solutions/SBA/August2012/Cisco_SBA_BN_VPNRemoteSiteOver3G4GDeploymentGuide-Aug2012.pdf


You should configure cellular interface and Dialer as well, but as dialer pool.

This worked for me.


The config should be like this:

interface Cellular0/0/0

no ip address

encapsulation slip

dialer in-band

dialer string gsm

dialer-group 1

dialer pool-member 1

async mode interactive


int Dialer1

ip vrf forwarding #99


ip address negotiated

encapsulation slip

dialer pool 1

dialer idle-timeout 0

dialer string gsm

dialer persistent


Best ragards.

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