Hi Friends,
I am facing certian difficulties with X.25 setup. Would appreciate tips for
the same. The details of the setup along with the router configuration is
given below:
X.25 SCENARIO
The following is the scenario that we have tested for one our customers who
is implemented his network and wants to connect on x.25
We as a Service Provider have the connectivity as the following :
1133 1026 1024 1023
R1 ----------------------R2-------------------------R3
S 0/1 s 1/6 BRI 6/2 BRI 0/1
R1 2600
R2 3662
R3 7206 (CPE)
There are 2 routers R1 and R2 at our end which are directly connected back
to back on serial. Router1s Serial is been configured for x.25 and
necessary routes have been injected to reach R2. R3 is at the customers
premises which is dialing into R2 on a BRI interface and getting connected.
When R3 gets connected to R2 at the service providers end an SVC is
created, After the creation of SVC R1 gets a path to reach R3
Problem Scenario :
R1 is able to reach R2
pad 1026 is successful
Pad 1024 gives an error
R1 is unable to reach R3
Pad 1023 gives an error
R2 is able to reach R3
Pad 1023 is successful
R2 is able to reach R1
Pad 1133 is successful
R3 is able to reach R1
Pad 1133 is successful
l
The running configs of the routers is as below
R1# show runn
service pad to-xot
service pad from-xot
service tcp-keepalives-in
x29 profile abc 1:0 2:0 3:0 4:2 5:0 6:5 7:0 8:0 9:0 10:0 12:0 13:0 14:0 15:0
16:0 17:0 18:0 19:0 20:0 22:0
x25 routing
call rsvp-sync
!
!
fax interface-type modem
mta receive maximum-recipients 0
!
!
controller E1 3/0
!
controller E1 4/0
!
!
interface Serial1/6
no ip address
no ip redirects
no ip proxy-arp
encapsulation x25
x25 address 1026
x25 ltc 16
x25 htc 4095
no cdp enable
!
interface BRI6/2
no ip address
encapsulation x25 dce ietf
no ip mroute-cache
dialer idle-timeout 25000
x25 address 1024
x25 ltc 16
x25 htc 4095
isdn switch-type basic-net3
cdapi buffers regular 0
cdapi buffers raw 0
cdapi buffers large 0
no cdp enable
!
x25 route ^404322017800 interface BRI6/2
x25 route 1023 interface BRI6/2
x25 route 1101 interface Serial1/6
x25 route 1100 interface Serial1/6
x25 route 5555 interface BRI6/2
x25 route ^1133 interface Serial1/6
x25 route 1026 interface Serial1/6
x25 route 1024 interface BRI6/2
x25 host gtl-3662-nbm 1025
!
Configuration for R2 :
x29 profile abc 1:0 2:0 3:0 4:2 5:0 6:5 7:0 8:0 9:0 10:0 12:0 13:0 14:0 15:0
16:0 17:0 18:0 19:0 20:0 22:0
isdn switch-type basic-net3
x25
routing
interface Serial1/6
no ip address
no ip redirects
no ip proxy-arp
encapsulation x25
x25 address 1026
x25 ltc 16
x25 htc 4095
no cdp enable
x25 route ^404322017800 interface BRI6/2
x25 route 1023 interface BRI6/2
x25 route 1101 interface Serial1/6
x25 route 1100 interface Serial1/6
x25 route 5555 interface BRI6/2
x25 route ^1133 interface
Serial1/6
R3 configuration is as follows:
isdn voice-call-failure 0
x25 routing
!
!
!
!
interface BRI4/4
description ***For Globle Testing***
no ip address
no ip directed-broadcast
encapsulation x25
no ip route-cache
no ip mroute-cache
dialer idle-timeout 2147483
dialer string 7619300
x25 address 1023
x25 ltc 16
x25 htc 4095
isdn switch-type basic-net3
isdn tei-negotiation first-call
!
x25 route 1024 interface BRI4/4
x25 route ^1025 interface BRI4/4
x25 route 1100 interface BRI4/4
x25 route 1133 interface BRI4/4
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