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

mvoegele · ‎05-08-2012

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?

Giuseppe Larosa · ‎05-09-2012

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

mvoegele · ‎05-09-2012

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: markus.voegele@lhsystems.com

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?

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Giuseppe Larosa · ‎05-09-2012

Hello Markus,

I agree it is wise to open a service request

Best Regards

Giuseppe

atle.haukeland · ‎11-17-2012

Did you remember to create the layer 2 VLAN?

Vasilii Mikhailovskii · ‎07-08-2013

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.