I have two routers connect throgh an ISDN switch.
System image file is "flash:c2500-js56i-l.121-12.bin
When I change the address to 135.11.35.0 /24 I can not ping. I verified
that the call went through
11R3#ping 135.11.35.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 135.11.35.2, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
R11R3#sh isdn act
------------------------------------------------------------------------
--------
ISDN ACTIVE CALLS
------------------------------------------------------------------------
--------
Call Calling Called Remote Seconds Seconds Seconds
Charges
Type Number Number Name Used Left Idle
Units/Currency
------------------------------------------------------------------------
--------
In 8995101 8995201 36 114 5
------------------------------------------------------------------------
--------
If I change the address to 135.11.35.0 /27 it works well and if I change
to 135.110.35.0 /24 it works. I am puzzled any ideas?
R11R3#sh run int bri0
Building configuration...
Current configuration : 182 byte
!
interface BRI0
ip address 135.11.35.1 255.255.255.0
dialer string 8995101
dialer-group 1
isdn switch-type basic-ni
isdn spid1 8995201 8995201
isdn spid2 8995202 8995202
end
R11R4#sh run int bri0
Building configuration...
Current configuration : 182 bytes
!
interface BRI0
ip address 135.11.35.2 255.255.255.0
dialer string 8995201
dialer-group 1
isdn switch-type basic-ni
isdn spid1 8995101 8995101
isdn spid2 8995102 8995102
end
HERE IS THE COMPLETE CONFIGURATION:
R11R3#sh run
Building configuration...
Current configuration : 1967 bytes
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname R11R3
!
enable secret 5 $1$LX3.$7TGAHxWdu5Zw8iWCkIHhf1
enable password lab
!
username r4 password 0 r4
!
!
!
!
ip subnet-zero
ip tcp synwait-time 5
no ip domain-lookup
ip host R11R1 135.11.1.1
ip host R11R3 135.11.3.3
ip host R11R4 135.11.4.4
ip host R11R6 135.11.6.6
ip host R11R7 135.11.7.7
ip host R11R8 135.11.8.8
ip host R11R16 135.11.16.16
!
isdn switch-type basic-5ess
!
!
crypto isakmp policy 10
hash md5
authentication pre-share
crypto isakmp key cisco address 135.11.34.5
!
!
crypto ipsec transform-set tor7 esp-des
!
crypto map toR7 10 ipsec-isakmp
set peer 135.11.34.5
set transform-set tor7
match address 101
!
!
!
!
interface Loopback0
ip address 135.11.3.3 255.255.255.0
!
interface Loopback2
no ip address
!
interface Ethernet0
ip address 135.11.56.3 255.255.255.0
crypto map toR7
!
interface Serial0
no ip address
shutdown
no fair-queue
!
interface Serial1
no ip address
shutdown
!
interface Serial2
no ip address
shutdown
!
interface Serial3
no ip address
shutdown
!
interface BRI0
ip address 135.11.35.1 255.255.255.0
dialer string 8995101
dialer-group 1
isdn switch-type basic-ni
isdn spid1 8995201 8995201
isdn spid2 8995202 8995202
!
router igrp 10
network 135.11.0.0
!
ip classless
ip http server
!
access-list 101 permit ip host 135.11.3.3 host 135.11.7.7
dialer-list 1 protocol ip permit
!
alias exec ct config t
alias exec sc show controllers serial
alias exec sci show cdp interface
alias exec scn sh cdp neighbor
alias exec sip show ip route
alias exec sipx show ipx route
alias exec cip clear ip route *
alias exec cib clear ip bgp *
alias exec sib show ip bgp
!
line con 0
exec-timeout 0 0
password lab
logging synchronous
login
line aux 0
exec-timeout 0 0
password lab
logging synchronous
login
line vty 0 4
exec-timeout 0 0
password lab
logging synchronous
login
!
end
R11R3#
R11R4#sh run
Building configuration...
Current configuration : 2781 bytes
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname R11R4
!
enable secret 5 $1$wnCW$4qHyuNAOZk3Z2FYnq7IUG0
enable password lab
!
username cisco password 0 cisco
username r3 password 0 cisco
!
!
!
!
ip subnet-zero
ip tcp synwait-time 5
no ip domain-lookup
ip host R11R1 135.11.1.1
ip host R11R3 135.11.3.3
ip host R11R6 135.11.6.6
ip host R11R7 135.11.7.7
ip host R11R8 135.11.8.8
ip host R11R16 135.11.16.16
ip host R11R4 135.11.4.4
!
isdn switch-type basic-5ess
!
!
!
!
!
interface Loopback0
ip address 135.11.4.4 255.255.255.0
!
interface Ethernet0
ip address 135.11.36.4 255.255.255.240
!
interface Serial0
ip address 135.11.14.4 255.255.255.224
ip rip send version 2
no fair-queue
clockrate 64000
!
interface Serial1
bandwidth 64000
ip address 135.11.34.4 255.255.255.248
encapsulation frame-relay
ip ospf priority 0
frame-relay map ip 135.11.34.3 403 broadcast
frame-relay map ip 135.11.34.5 401 broadcast
frame-relay lmi-type ansi
!
interface Serial2
no ip address
shutdown
!
interface Serial3
no ip address
shutdown
!
interface BRI0
ip address 135.11.35.2 255.255.255.0
dialer string 8995201
dialer-group 1
isdn switch-type basic-ni
isdn spid1 8995101 8995101
isdn spid2 8995102 8995102
!
router ospf 12
log-adjacency-changes
area 0 range 135.11.24.0 255.255.255.0
area 1 range 135.11.34.0 255.255.255.224
area 1 virtual-link 135.11.7.7
area 33 range 135.11.36.0 255.255.255.0
summary-address 135.11.14.0 255.255.255.0
summary-address 135.11.35.0 255.255.255.224
redistribute rip subnets
redistribute igrp 10 subnets
passive-interface BRI0
passive-interface Serial0
network 135.11.34.0 0.0.0.7 area 1
network 135.11.36.0 0.0.0.15 area 33
default-metric 30
!
router rip
redistribute ospf 12 match internal external 1 external 2
redistribute igrp 10
passive-interface BRI0
passive-interface Ethernet0
passive-interface Serial1
network 135.11.0.0
default-metric 5
!
router igrp 10
redistribute ospf 12 match internal external 1 external 2
redistribute rip
passive-interface Ethernet0
passive-interface Serial0
passive-interface Serial1
network 135.11.0.0
default-metric 64000 20000 255 1 1500
!
ip classless
ip http server
!
dialer-list 1 protocol ip permit
!
alias exec ct config t
alias exec sc show controllers serial
alias exec sci show cdp interface
END
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