[cisco-nas] ISDN calls not making it to NM-6DM
Aaron Leonard
aaron at cisco.com
Mon Feb 2 17:22:06 EST 2015
Hi Tim,
Maybe you're not getting 64kbps clear. Maybe you can knock your data
calls down to 56k and they'll work?
(Now ... can I remember how to do that? I guess if using legacy dialer,
then "dialer map ... speed 56" ... or if dialer profile, then "dialer
string ... class XXX" with "map-class dialer XXX"/dialer isdn speed 56".)
Wait a minute. VIC-2-2BRI? That doesn't even handle ISDN data, does it?
Hth,
Aaron
----
On 2/2/2015 3:02 PM, tom at snnap.net (Tom Storey) wrote:
> Hey Josh.
>
> Yeah, just O CONFREQs from both sides.
>
> I do see input crc/frame errors on Se1/0:0 on the 3825, and also on
> Di0 on the 1841. No errors on any of the other PRI/BRI interfaces in
> between though.
>
> Tried swapping the VIC2-2BRI in the 3825 which didnt help, but I dont
> have a spare WIC-1B to test with at the moment.
>
>
>
> On 2 February 2015 at 13:51, joshd <jduffek at gmail.com
> <mailto:jduffek at gmail.com>> wrote:
>
> So just O CONFREQs on each side then? You could look at the "sh
> int se1/0:x"/b-channel, maybe you're getting input errors or
> something?
>
>
>
> On Sat, Jan 31, 2015 at 1:38 PM, Tom Storey <tom at snnap.net
> <mailto:tom at snnap.net>> wrote:
>
> Played around with this a bit more, and Ive configured up my
> Se1/0:15 interface with PPP et al, almost matches the
> Group-Async interface, so should be right.
>
> When the ISDN data call establishes (what looks to be
> successfully) I see both ends start TXing PPP LCP packets,
> which is a good sign, but neither end is receiving anything
> from the other side.
>
> Pitty I cant wireshark the B channels to see whats going back
> and forth. :-P
>
> On 31 January 2015 at 00:08, Mark Johnson (mljohnso)
> <mljohnso at cisco.com <mailto:mljohnso at cisco.com>> wrote:
>
> Yeah, the DM’s are only going to terminate analog calls.
> As Josh says (long time, Josh!), configure the PRI (or use
> Legacy DDR or Dialer Profiles) and you should be good.
>
> mark
>
> From: joshd <jduffek at gmail.com <mailto:jduffek at gmail.com>>
> Date: Friday, January 30, 2015 at 3:52 PM
> To: Tom Storey <tom at snnap.net <mailto:tom at snnap.net>>
> Cc: Mark Johnson <mljohnso at cisco.com
> <mailto:mljohnso at cisco.com>>, "cisco-nas at puck.nether.net
> <mailto:cisco-nas at puck.nether.net>"
> <cisco-nas at puck.nether.net <mailto:cisco-nas at puck.nether.net>>
> Subject: Re: [cisco-nas] ISDN calls not making it to NM-6DM
>
> If you just want to make it work, you can configure your
> IP stuff on the serial1/0:15 interface and the call should
> terminate there. ISDN to ISDN like.
>
> Not sure how you would simulate a real analog modem type
> call from the 1841 side with what you have.
>
> I could be wrong though, been a while...
>
> jd.
>
> On Fri, Jan 30, 2015 at 5:32 PM, Tom Storey <tom at snnap.net
> <mailto:tom at snnap.net>> wrote:
>
> Hi Mark, did not expect such a quick response!
>
> Indeed it is originating from the 1841 as 8890.
>
> I also re-configured the 1841 to do DoV, where the
> bearercap changed to 0x8090A3, and this was also seen
> as the incomming bearercap on the 3825.
>
> I was under the impression from my reading that the
> NM-xDM could also terminate ISDN data calls, or have I
> got that wrong?
>
> Cheers!
>
> On 30 January 2015 at 23:27, Mark Johnson (mljohnso)
> <mljohnso at cisco.com <mailto:mljohnso at cisco.com>> wrote:
>
> A bearer cap of 0x8890 means the call is digital,
> not analog, so the call is not being passed to a
> modem. Your emulating network in between must be
> mucking with the bearer cap (check out debug on
> the 1841 to verify that it’s not originating at 8890).
>
> mark
>
> From: Tom Storey <tom at snnap.net
> <mailto:tom at snnap.net>>
> Date: Friday, January 30, 2015 at 3:13 PM
> To: "cisco-nas at puck.nether.net
> <mailto:cisco-nas at puck.nether.net>"
> <cisco-nas at puck.nether.net
> <mailto:cisco-nas at puck.nether.net>>
> Subject: [cisco-nas] ISDN calls not making it to
> NM-6DM
>
> Hi everyone.
>
> Playing around with some old hardware in a lab,
> trying to get some ISDN calls originated from an
> 1841 with a WIC-1B-S/T-V3 to be answered on a 3825
> with a NM-6D and NM-CE1T1-PRI.
>
> Heres my config:
>
> controller E1 1/0
> pri-group timeslots 1-6,16
> !
> interface Serial1/0:15
> no ip address
> encapsulation ppp
> isdn switch-type primary-net5
> isdn incoming-voice modem 64
> isdn bchan-number-order ascending
> !
> interface Group-Async0
> ip unnumbered Loopback0
> ip nat inside
> ip virtual-reassembly in
> encapsulation ppp
> peer default ip address pool dialup
> async mode interactive
> no keepalive
> ppp authentication chap callin
> group-range 2/0 2/5
> !
> line 2/0 2/5
> modem InOut
> autoselect ppp
> !
>
> And heres what I see when an ISDN call comes in:
>
> *Jan 30 23:31:24.963 UTC: ISDN Se1/0:15 Q931: RX
> <- SETUP pd = 8 callref = 0x0183
> 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
> Calling Party Number i = 0x80, '0733944124'
> Plan:Unknown, Type:Unknown
> Called Party Number i = 0x80
> Plan:Unknown, Type:Unknown
> *Jan 30 23:31:24.963 UTC: ISDN Se1/0:15 Q931:
> Received SETUP callref = 0x8183 callID = 0x01E5
> switch = primary-net5 interface = User
> *Jan 30 23:31:24.971 UTC: %ISDN-6-CONNECT:
> Interface Serial1/0:0 is now connected to
> 0733944124 N/A
> *Jan 30 23:31:24.971 UTC: ISDN Se1/0:15 Q931: TX
> -> CALL_PROC pd = 8 callref = 0x8183
> Channel ID i = 0xA98381
> Exclusive, Channel 1
> *Jan 30 23:31:24.971 UTC: ISDN Se1/0:15 Q931: TX
> -> CONNECT pd = 8 callref = 0x8183
> Channel ID i = 0xA98381
> Exclusive, Channel 1
> *Jan 30 23:31:24.979 UTC: ISDN Se1/0:15 Q931: RX
> <- CONNECT_ACK pd = 8 callref = 0x0183
>
> So as far as I can tell the call comes in and
> establishes fine, but even with "debug modem" and
> a couple of other debugs on, I dont see any
> activity regarding connection to a modem. When I
> dial in from an analogue modem it works just fine.
>
> FWIW I am using the 3825 as a PSTN simulator as
> well. The 1841 is connected to a VIC2-2BRI-NT/TE
> emulating network, and a dialpeer connects calls
> to a VWIC2-2MTF-E1 which is also emulating network
> and is connected to the NM-CE1T1-PRI.
>
> Wondering if any one can provide any pointers to
> help me out. Am I missing something obvious?
>
> Let me know if you require more information.
>
> Thanks
> Tom
>
>
>
> _______________________________________________
> cisco-nas mailing list
> cisco-nas at puck.nether.net
> <mailto:cisco-nas at puck.nether.net>
> https://puck.nether.net/mailman/listinfo/cisco-nas
>
>
>
>
>
>
>
> _______________________________________________
> cisco-nas mailing list
> cisco-nas at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nas
More information about the cisco-nas
mailing list