From: smaljure@xxxxxxxxxxxxxxxxx
Date: Mon Jun 26 2000 - 15:45:11 GMT-3
Hi all,
I am trying to get one way ISDN calling to work.
I have the following scenario....
R1-BRI0---TELTONE_ILS_2000-----BRI0-r2
I have a very simple config going...PPP on both sides, no authentication.
I have a dialer string on only one side (R1)
On the other side I have a dialer map with no number.
Layer 1 and Layer 2 are active.. on both sides..
If I do a "sh dialer" on the routers, I see that the call successfully goes
through, however I do not receive the ping replies..
If I do a "debug dialer" on R2, it says, "cannot find dial number, cannot
complete call, go get a life"
HOWEVER,
If I put in dialer strings on both routers, they can talk to one another.
If I put in dialer map on both routers with phone numbers, they can talk to
one another.
I found out that when I can successfully ping, as in the above case, R1
places the call on the first B channel and sends the echoes and R2 puts a
fresh call on its second B channel
to send the echo replies.
But if R1 already has a B channel open, isn't R2 supposed to just reply on
the same????
I have got this working several times with real ISDN lines. This is my first
time with this simultaor. Any gotchchas???
Below are the configs...
Thanks for your time
Sanjay
sh run
Building configuration...
Current configuration:
!
version 11.2
no service password-encryption
no service udp-small-servers
no service tcp-small-servers
!
hostname r1
!
enable secret 5 $1$FE6P$1pB46PMhaFivO/C/KaSVj0
!
ip subnet-zero
no ip domain-lookup
isdn switch-type basic-dms100
!
interface Loopback0
ip address 14.0.0.1 255.255.255.0
!
interface Ethernet0
no ip address
shutdown
!
--More-- interface Serial0
ip address 11.0.0.1 255.255.255.0
shutdown
no fair-queue
clockrate 64000
!
interface Serial1
no ip address
shutdown
!
!
interface BRI0
ip address 10.0.0.1 255.255.255.0
encapsulation ppp
isdn spid1 0835866101 8358661
--More-- isdn spid2 0835866301 8358663
dialer map ip 10.0.0.2 8358662
dialer-group 1
!
no ip classless
ip route 13.0.0.0 255.255.255.0 10.0.0.2
!
dialer-list 1 protocol ip permit
!
line con 0
line aux 0
line vty 0 4
password cisco
login
!
end
r1#sh dialer
BRI0 - dialer type = ISDN
Dial String Successes Failures Last called Last status
8358662 1 0 00:16:52 successful
0 incoming call(s) have been screened.
BRI0:1 - dialer type = ISDN
Idle timer (120 secs), Fast idle timer (20 secs)
Wait for carrier (30 secs), Re-enable (15 secs)
Dialer state is idle
BRI0:2 - dialer type = ISDN
Idle timer (120 secs), Fast idle timer (20 secs)
Wait for carrier (30 secs), Re-enable (15 secs)
Dialer state is idle
r1#
r1#ping 10.0.0.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.0.2, timeout is 2 seconds:
%LINK-3-UPDOWN: Interface BRI0:1, changed state to up.
RT: network 10.0.0.0 is now variably masked
RT: add 10.0.0.2/32 via 0.0.0.0, connected metric [0/0]
%LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0:1, changed state to
up...
%ISDN-6-CONNECT: Interface BRI0:1 is now connected to 8358662 .
Success rate is 0 percent (0/5)
r1#
r1#
r1#sh run dialer
BRI0 - dialer type = ISDN
Dial String Successes Failures Last called Last status
8358662 2 0 00:00:22 successful
0 incoming call(s) have been screened.
BRI0:1 - dialer type = ISDN
Idle timer (120 secs), Fast idle timer (20 secs)
Wait for carrier (30 secs), Re-enable (15 secs)
Dialer state is data link layer up
Dial reason: ip (s=10.0.0.1, d=10.0.0.2)
Time until disconnect 105 secs
Connected to 8358662
BRI0:2 - dialer type = ISDN
Idle timer (120 secs), Fast idle timer (20 secs)
Wait for carrier (30 secs), Re-enable (15 secs)
Dialer state is idle
r1#
r1#
r1#ping 10.0.0.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.0.2, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
r1#
r1#
r1#sh int bri 0 1
BRI0:1 is up, line protocol is up
Hardware is BRI
MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation PPP, loopback not set, keepalive set (10 sec)
LCP Open
Open: IPCP, CDPCP
Last input 00:00:05, output 00:00:05, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0 (size/max/drops); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/1/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
120 packets input, 1886 bytes, 0 no buffer
Received 120 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
248 packets output, 15186 bytes, 0 underruns
0 output errors, 0 collisions, 7 interface resets
0 output buffer failures, 0 output buffers swapped out
3 carrier transitions
r1#
r1#
r2#
r2#
r2#sh run
Building configuration...
Current configuration:
!
version 11.2
no service password-encryption
no service udp-small-servers
no service tcp-small-servers
!
hostname r2
!
enable secret 5 $1$f0E1$I9HuoTlJpxtucXeO7W.dB0
!
ip subnet-zero
no ip domain-lookup
isdn switch-type basic-dms100
!
interface Loopback0
ip address 13.0.0.1 255.255.255.0
!
interface Ethernet0
no ip address
shutdown
!
--More-- interface Serial0
ip address 11.0.0.2 255.255.255.0
no fair-queue
!
interface Serial1
no ip address
shutdown
!
interface BRI0
ip address 10.0.0.2 255.255.255.0
encapsulation ppp
isdn spid1 0835866201 8358662
isdn spid2 0835866401 8358664
dialer map ip 10.0.0.1 name r1
dialer-group 1
no fair-queue
ppp multilink
!
no ip classless
ip route 14.0.0.0 255.255.255.0 BRI0
!
dialer-list 1 protocol ip permit
!
--More-- line con 0
line aux 0
line vty 0 4
password cisco
login
!
end
r2#
r2#
r2#sh dialer
BRI0 - dialer type = ISDN
Dial String Successes Failures Last called Last status
0 incoming call(s) have been screened.
BRI0:1 - dialer type = ISDN
Idle timer (120 secs), Fast idle timer (20 secs)
Wait for carrier (30 secs), Re-enable (15 secs)
Dialer state is data link layer up
Time until disconnect 64 secs
BRI0:2 - dialer type = ISDN
Idle timer (120 secs), Fast idle timer (20 secs)
Wait for carrier (30 secs), Re-enable (15 secs)
Dialer state is idle
r2#
r2#
r2#
r2#
r2#
r2#sh int bri 0 1
BRI0:1 is up, line protocol is up
Hardware is BRI
MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation PPP, loopback not set, keepalive set (10 sec)
LCP Open, multilink Closed
Open: IPCP, CDPCP
Last input 00:00:03, output 00:00:03, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
757 packets input, 35199 bytes, 0 no buffer
Received 757 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
292 packets output, 4566 bytes, 0 underruns
0 output errors, 0 collisions, 7 interface resets
0 output buffer failures, 0 output buffers swapped out
18 carrier transitions
r2#
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