10-08-2012 12:05 AM - edited 03-04-2019 05:47 PM
hi,
I tried to view the tracing the Route for my head office router to branch office router. after two hop its show the Request time out and the ping to the branch office router, what is the reason for Request timed out?
Kindly provide the solution.
10-08-2012 01:29 AM
The 3rd hop has not responded with ttl expired
It can happen it that device is configured not to respond for ICMP TTL expiry
10-08-2012 01:36 AM
pls tell me hw to Enable ICMP in cisco router.
10-08-2012 01:43 AM
there are many ways to block the icmp router
Can you attach the show run from the device
10-08-2012 03:39 AM
Please Find below the Running Config.
sh run
Building configuration...
Current configuration : 5942 bytes
!
! Last configuration change at 16:28:17 UTC Thu Sep 6 2012
! NVRAM config last updated at 15:35:27 UTC Fri Feb 3 2012
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
boot-start-marker
boot system flash c1841-advsecurityk9-mz.124-24.T4.bin
boot-end-marker
!
logging message-counter syslog
logging buffered 51200 notifications
enable secret 5 $1$p.Sv$CDtx3xdzb44Rslg8ACmc5.
enable password 7 121A0C041104
!
no aaa new-model
--More-- dot11 syslog
no ip source-route
!
!
!
!
ip cef
no ip bootp server
no ip domain lookup
ip domain name yourdomain.com
!
multilink bundle-name authenticated
!
!
crypto pki trustpoint TP-self-signed-120604203
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-120604203
revocation-check none
rsakeypair TP-self-signed-120604203
!
!
!
!
username cisco privilege 15 secret 5 $1$FV/I$PTSil.8JhU40G3MnPb.5Y.
--More-- archive
log config
hidekeys
!
!
!
!
!
!
!
!
interface FastEthernet0/0
description ## Interface For Tulip MPLS CKT_22702 VLAN_224 TN-70 ##
bandwidth 2048
ip address 10.237.9.18 255.255.255.252
ip accounting output-packets
duplex auto
speed auto
no cdp enable
arp timeout 30
!
interface FastEthernet0/1
ip address 10.10.40.105 255.255.252.0
ip flow ingress
duplex auto
speed auto
!
interface BRI0/0/0
no ip address
encapsulation hdlc
shutdown
!
interface Serial0/1/0
no ip address
shutdown
clock rate 2000000
!
router bgp 65001
bgp log-neighbor-changes
neighbor 10.10.40.100 remote-as 65001
neighbor 10.237.9.17 remote-as 65500
!
address-family ipv4
neighbor 10.10.40.100 activate
neighbor 10.237.9.17 activate
no auto-summary
no synchronization
network 10.0.0.0
network 10.10.40.0 mask 255.255.252.0
exit-address-family
!
ip forward-protocol nd
ip route 10.10.140.0 255.255.255.0 10.10.40.71
ip route 10.20.235.0 255.255.255.0 10.10.40.71
ip http server
ip http access-class 23
ip http authentication local
ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
!
ip flow-export source FastEthernet0/1
ip flow-export version 5
ip flow-export destination 10.10.40.14 9230
!
!
access-list 182 permit tcp host 10.10.43.56 any eq telnet
access-list 182 permit tcp host 10.10.43.241 any eq telnet
access-list 182 permit tcp host 10.10.40.250 any eq telnet
!
!
snmp-server community tulip RO
snmp-server community h0Wd@r3U RW
snmp-server ifindex persist
snmp-server host 10.10.40.13 h0Wd@r3U
snmp-server host 10.10.40.14 h0Wd@r3U
snmp-server host 10.10.40.15 h0Wd@r3U
snmp-server host 10.10.42.20 h0Wd@r3U
!
control-plane
!
banner motd ^CCCCC
^C
!
line con 0
password 7 062B1D741D402D1054
login local
line aux 0
line vty 0 4
access-class 182 in
privilege level 15
password 7 080C5E1B5817211E43
login
transport input telnet ssh
line vty 5 15
access-class 23 in
privilege level 15
login local
transport input telnet ssh
!
scheduler allocate 20000 1000
end
10-08-2012 03:52 AM
In this config interface Fast0/1 has address of 10.10.40.105. And looking at the traceroute results we see that this is the device that did generate a response at hop 2. The device that we need to see the configuration is the device at hop 3.
The description in the other FastEthernet interface suggests that this device at hop 3 is MPLS. Perhaps this has something to do with why it is not generating the response in traceroute.
HTH
Rick
10-08-2012 04:17 AM
Now what am i do for this problem.
Pls tell me the solution.
10-08-2012 04:42 AM
We still do not have sufficient information to know what is exactly the problem or what you might do about it.
Is the router at the third hop one that you control? If so then post its configuration. If it is not one that you control then the only thing that you can do is to talk with whoever does control it and ask about why it does not respond to traceroute.
HTH
Rick
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