Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements
Webcast-Catalyst9k
New Member

VWIC2-1MFT-T1/E1 on Cisco2801

Dear All

I have two Cisco2801 routers with VWIC2-1MFT-T1/E1 modules and I want to interconnect them by E1 (RJ-48) crossover cable for IP traffic exchange.

I must use Dial-on-Demand Routing.

I tried "ISDN DDR Using HDLC Encapsulation" example

(http://www.cisco.com/en/US/tech/tk801/tk133/technologies_configuration_example09186a00800945be.shtml)

- ISDN call is placed, but IP traffic doesn't pass through E1 link. Here some debug outputs:

Cisco1#ping 192.168.1.2

000198: *Sep 19 18:51:32.391 PCTime: IP: tableid=0, s=192.168.1.1 (local), d=192.168.1.2 (Serial0/1/0:15), routed via RIB

000199: *Sep 19 18:51:32.391 PCTime: IP: s=192.168.1.1 (local), d=192.168.1.2 (Serial0/1/0:15), len 100, sending

000200: *Sep 19 18:51:32.391 PCTime: ICMP type=8, code=0

000201: *Sep 19 18:51:32.395 PCTime: Se0/1/0:15 DDR: place call

000202: *Sep 19 18:51:32.395 PCTime: Se0/1/0:15 DDR: Dialing cause ip (s=192.168.1.1, d=192.168.1.2)

000203: *Sep 19 18:51:32.395 PCTime: Se0/1/0:15 DDR: Attempting to dial 310000

000204: *Sep 19 18:51:32.395 PCTime: IP: s=192.168.1.1 (local), d=192.168.1.2 (Serial0/1/0:15), len 100, encapsulation failed

000205: *Sep 19 18:51:32.395 PCTime: ICMP type=8, code=0

000208: *Sep 19 18:51:32.395 PCTime: ISDN Se0/1/0:15 Q931: Applying typeplan for sw-type 0x12 is 0x0 0x1, Called num 310000

000209: *Sep 19 18:51:32.399 PCTime: ISDN Se0/1/0:15 Q931: TX -> SETUP pd = 8 callref = 0x0008

Sending Complete

Bearer Capability i = 0x8890

Standard = CCITT

Transfer Capability = Unrestricted Digital

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA98381

Exclusive, Channel 1

Called Party Number i = 0x81, '310000'

Plan:ISDN, Type:Unknown

000210: *Sep 19 18:51:32.411 PCTime: ISDN Se0/1/0:15 Q931: RX <- CALL_PROC pd = 8 callref = 0x8008

Channel ID i = 0xA98381

Exclusive, Channel 1

000212: *Sep 19 18:51:32.415 PCTime: ISDN Se0/1/0:15 Q931: RX <- CONNECT pd = 8 callref = 0x8008

Channel ID i = 0xA98381

Exclusive, Channel 1

000214: *Sep 19 18:51:32.415 PCTime: %LINK-3-UPDOWN: Interface Serial0/1/0:0, changed state to up

000215: *Sep 19 18:51:32.415 PCTime: %ISDN-6-CONNECT: Interface Serial0/1/0:0 is now connected to 310000 N/A

000217: *Sep 19 18:51:32.419 PCTime: ISDN Se0/1/0:15 Q931: TX -> CONNECT_ACK pd = 8 callref = 0x0008

000218: *Sep 19 18:51:32.419 PCTime: Se0/1/0:0 DDR: dialer protocol up.

000219: *Sep 19 18:51:33.415 PCTime: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1/0:0, changed state to up

000220: *Sep 19 18:51:34.391 PCTime: IP: tableid=0, s=192.168.1.1 (local), d=192.168.1.2 (Serial0/1/0:15), routed via RIB

000221: *Sep 19 18:51:34.391 PCTime: IP: s=192.168.1.1 (local), d=192.168.1.2 (Serial0/1/0:15), len 100, sending

000222: *Sep 19 18:51:34.391 PCTime: ICMP type=8, code=0.

.

.

000229: *Sep 19 18:51:40.391 PCTime: IP: tableid=0, s=192.168.1.1 (local), d=192.168.1.2 (Serial0/1/0:15), routed via RIB

000230: *Sep 19 18:51:40.391 PCTime: IP: s=192.168.1.1 (local), d=192.168.1.2 (Serial0/1/0:15), len 100, sending

000231: *Sep 19 18:51:40.391 PCTime: ICMP type=8, code=0

000232: *Sep 19 18:51:41.095 PCTime: Serial0/1/0:0: HDLC myseq 0, mineseen 0, yourseen 0, line up .

Success rate is 0 percent (0/5)

When I try to configure PPP encap on the Serial x/x/x:15, Layer2 of E1 link goes down at all and I can't to place ISDN calls.

I posted description of this trouble two weeks ago in "Remote Access" section - some people said me, that if I'm using a Dialer, I can't establish PPP connection with such VWICs modules!? Is that true?

Experts!!! please, help me!

Thanks in advance

4 REPLIES

Re: VWIC2-1MFT-T1/E1 on Cisco2801

Could you please post the actual config and the output from: deb ppp neg?

Regards,

Leo

New Member

Re: VWIC2-1MFT-T1/E1 on Cisco2801

Hi Leo

In actual config of my routers PPP encap is not configured. I would like to know, why HDLC encap doesn't work properly? According to their example ("ISDN DDR Using HDLC Encapsulation") it must work. All difference: they are using BRI, and I'm using PRI. I thought, that BRI and PRI are the same in configuration.

Here some relevant config from my routers:

Router A (network side)

hostname Cisco1

!

network-clock-participate wic 1

ip subnet-zero

ip cef

!

no ip dhcp use vrf connected

!

isdn switch-type primary-net5

!

controller E1 0/1/0

clock source internal

pri-group timeslots 1-31

!

interface Serial0/1/0:15

ip address 192.168.1.1 255.255.255.0

isdn switch-type primary-net5

isdn protocol-emulate network

dialer map ip 192.168.1.2 broadcast name Cisco2 310000

dialer-group 1

no fair-queue

!

ip classless

!

access-list 105 permit icmp any any

dialer-list 1 protocol ip permit

Router B (user side)

hostname Cisco2

!

network-clock-participate wic 1

ip subnet-zero

ip cef

!

no ip dhcp use vrf connected

!

isdn switch-type primary-net5

!

controller E1 0/1/0

clock source line

pri-group timeslots 1-31

!

interface Serial0/1/0:15

ip address 192.168.1.2 255.255.255.0

isdn switch-type primary-net5

dialer map ip 192.168.1.1 broadcast name Cisco1 210000

dialer-group 1

no fair-queue

!

ip classless

!

access-list 105 permit icmp any any

dialer-list 1 protocol ip permit

As for PPP, I told, that I see TEI_ASSIGNED instead of MULTIPLE_FRAME_ESTABLISHED, one I configure PPP encap on the Serial0/1/0:15. Is it normal for PPP? I don't know. But how to place the calls, when Layer2 doesn't work?

Please help!

Regards,

Ivan

Re: VWIC2-1MFT-T1/E1 on Cisco2801

Now, it looks from your config as if you are connecting the modules back-to-back. As far as I know, this will not work. You always need a public exchange in between for proper signalling.

It is perhaps possible to use a channelized connection:

http://www.cisco.com/en/US/products/sw/iosswrel/ps1828/products_configuration_guide_chapter09186a0080087328.html#4669

Otherwise you need to use the vwic-1mft-g703 module which is capable of using the external E1 circuit as a leased line.

Regards,

Leo

New Member

Re: VWIC2-1MFT-T1/E1 on Cisco2801

Hi Leo!

You were rihgt! We realy have wrong modules. We want use ISDN PRI for data, but VWIC MFT modules don't support that.

Here some notes form Cisco documentation:

** If you set up the card to use ISDN PRI signaling, there is no support for ISDN data

connection. The card cannot terminate ISDN 64K or 56K data connection; the card only

supports voice-call termination with ISDN PRI signaling.

We contacted with Cisco TAC support team and they suggested us to use NM-1CE1T1-PRI 1-port Channelized E1/T1/ISDN PRI network module, if we want to use ISDN PRI for data.

I rated your post, because it was also very helpfull.

Many thanks

Regards

Ivan

939
Views
5
Helpful
4
Replies
CreatePlease to create content