newcisco711
IS-IT--Management
I have a 4700 Cisco Router with a Very simple setup. The router will not forward any ICMP packets to other directly connected networks (in other words route...anything for that matter). Now, the physical setup is fine and the router can ping ANYTHING on ANY network and the Internet. But why is my router not routing? I think 1 thing very interesting is a debug. When I run a debug, the ICMP packets don't even show up when they fail, but when the ping is successful I see them. Look at my debug below (The first ping is directly from the router and the 2nd is from an interface on a different subnet on the router...notice the fact I am getting no debug info on the 2nd ping):
LynchTech#ping 10.1.1.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms
LynchTech#
1d00h: ICMP: echo reply rcvd, src 10.1.1.2, dst 10.1.1.1
1d00h: ICMP: echo reply rcvd, src 10.1.1.2, dst 10.1.1.1
1d00h: ICMP: echo reply rcvd, src 10.1.1.2, dst 10.1.1.1
1d00h: ICMP: echo reply rcvd, src 10.1.1.2, dst 10.1.1.1
1d00h: ICMP: echo reply rcvd, src 10.1.1.2, dst 10.1.1.1ping
Protocol [ip]:
Target IP address: 10.1.1.2
Repeat count [5]:
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]: y
Source address or interface: 64.253.98.14
Type of service [0]:
Set DF bit in IP header? [no]:
Validate reply data? [no]:
Data pattern [0xABCD]:
Loose, Strict, Record, Timestamp, Verbose[none]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.2, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Below is my setup:
Gateway of last resort is 64.253.98.1 to network 0.0.0.0
64.0.0.0/24 is subnetted, 1 subnets
C 64.253.98.0 is directly connected, Ethernet0
C 10.0.0.0/8 is directly connected, Ethernet2
C 192.168.1.0/24 is directly connected, Ethernet1
S* 0.0.0.0/0 [1/0] via 64.253.98.1
Building configuration...
Current configuration:
!
! Last configuration change at 02:00:54 UTC Sat Aug 7 2004
! NVRAM config last updated at 02:00:55 UTC Sat Aug 7 2004
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname LynchTech
!
enable secret 5 $1$
!
ip subnet-zero
ip host dell 192.168.1.160
ip host 64.233.167.99
ip host dell2 10.1.1.2
ip host intel 192.168.1.150
ip host server1 192.168.1.170
ip host 64.253.98.15
!
!
!
interface Ethernet0
description Internet
ip address 64.253.98.14 255.255.255.0
no ip directed-broadcast
media-type 10BaseT
!
interface Ethernet1
description Internal Network
ip address 192.168.1.190 255.255.255.0
no ip directed-broadcast
media-type 10BaseT
!
interface Ethernet2
description Dell Backup NIC
ip address 10.1.1.1 255.0.0.0
no ip directed-broadcast
media-type 10BaseT
!
interface Ethernet3
no ip address
no ip directed-broadcast
shutdown
media-type 10BaseT
!
interface Ethernet4
no ip address
no ip directed-broadcast
shutdown
media-type 10BaseT
!
interface Ethernet5
no ip address
no ip directed-broadcast
shutdown
media-type 10BaseT
!
interface Serial0
description Frame Relay Test Interface
no ip address
no ip directed-broadcast
encapsulation frame-relay
frame-relay lmi-type ansi
!
interface Serial0.1 multipoint
ip address 20.1.1.1 255.0.0.0
no ip directed-broadcast
frame-relay interface-dlci 100
!
interface Serial0.2 point-to-point
ip address 30.1.1.1 255.0.0.0
no ip directed-broadcast
frame-relay interface-dlci 200
!
interface Serial1
no ip address
no ip directed-broadcast
shutdown
!
interface Serial2
no ip address
no ip directed-broadcast
shutdown
!
interface Serial3
no ip address
no ip directed-broadcast
shutdown
!
ip nat translation timeout never
ip nat translation tcp-timeout never
ip nat translation udp-timeout never
ip nat translation finrst-timeout never
ip nat translation syn-timeout never
ip nat translation dns-timeout never
ip nat translation icmp-timeout never
ip classless
ip route 0.0.0.0 0.0.0.0 64.253.98.1
ip route 10.0.0.0 255.0.0.0 10.1.1.2
ip route 192.168.1.0 255.255.255.0 192.168.1.1
!
banner login ^C
Authorized Users Only!!
^C
banner motd ^C
<<< ervices >>>
<<<
^C
!
line con 0
password $$$$$
login
transport input none
line aux 0
password $$$$$
login
line vty 0 4
password $$$$$
login
!
end
LynchTech#ping 10.1.1.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms
LynchTech#
1d00h: ICMP: echo reply rcvd, src 10.1.1.2, dst 10.1.1.1
1d00h: ICMP: echo reply rcvd, src 10.1.1.2, dst 10.1.1.1
1d00h: ICMP: echo reply rcvd, src 10.1.1.2, dst 10.1.1.1
1d00h: ICMP: echo reply rcvd, src 10.1.1.2, dst 10.1.1.1
1d00h: ICMP: echo reply rcvd, src 10.1.1.2, dst 10.1.1.1ping
Protocol [ip]:
Target IP address: 10.1.1.2
Repeat count [5]:
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]: y
Source address or interface: 64.253.98.14
Type of service [0]:
Set DF bit in IP header? [no]:
Validate reply data? [no]:
Data pattern [0xABCD]:
Loose, Strict, Record, Timestamp, Verbose[none]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.2, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Below is my setup:
Gateway of last resort is 64.253.98.1 to network 0.0.0.0
64.0.0.0/24 is subnetted, 1 subnets
C 64.253.98.0 is directly connected, Ethernet0
C 10.0.0.0/8 is directly connected, Ethernet2
C 192.168.1.0/24 is directly connected, Ethernet1
S* 0.0.0.0/0 [1/0] via 64.253.98.1
Building configuration...
Current configuration:
!
! Last configuration change at 02:00:54 UTC Sat Aug 7 2004
! NVRAM config last updated at 02:00:55 UTC Sat Aug 7 2004
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname LynchTech
!
enable secret 5 $1$
!
ip subnet-zero
ip host dell 192.168.1.160
ip host 64.233.167.99
ip host dell2 10.1.1.2
ip host intel 192.168.1.150
ip host server1 192.168.1.170
ip host 64.253.98.15
!
!
!
interface Ethernet0
description Internet
ip address 64.253.98.14 255.255.255.0
no ip directed-broadcast
media-type 10BaseT
!
interface Ethernet1
description Internal Network
ip address 192.168.1.190 255.255.255.0
no ip directed-broadcast
media-type 10BaseT
!
interface Ethernet2
description Dell Backup NIC
ip address 10.1.1.1 255.0.0.0
no ip directed-broadcast
media-type 10BaseT
!
interface Ethernet3
no ip address
no ip directed-broadcast
shutdown
media-type 10BaseT
!
interface Ethernet4
no ip address
no ip directed-broadcast
shutdown
media-type 10BaseT
!
interface Ethernet5
no ip address
no ip directed-broadcast
shutdown
media-type 10BaseT
!
interface Serial0
description Frame Relay Test Interface
no ip address
no ip directed-broadcast
encapsulation frame-relay
frame-relay lmi-type ansi
!
interface Serial0.1 multipoint
ip address 20.1.1.1 255.0.0.0
no ip directed-broadcast
frame-relay interface-dlci 100
!
interface Serial0.2 point-to-point
ip address 30.1.1.1 255.0.0.0
no ip directed-broadcast
frame-relay interface-dlci 200
!
interface Serial1
no ip address
no ip directed-broadcast
shutdown
!
interface Serial2
no ip address
no ip directed-broadcast
shutdown
!
interface Serial3
no ip address
no ip directed-broadcast
shutdown
!
ip nat translation timeout never
ip nat translation tcp-timeout never
ip nat translation udp-timeout never
ip nat translation finrst-timeout never
ip nat translation syn-timeout never
ip nat translation dns-timeout never
ip nat translation icmp-timeout never
ip classless
ip route 0.0.0.0 0.0.0.0 64.253.98.1
ip route 10.0.0.0 255.0.0.0 10.1.1.2
ip route 192.168.1.0 255.255.255.0 192.168.1.1
!
banner login ^C
Authorized Users Only!!
^C
banner motd ^C
<<< ervices >>>
<<<
^C
!
line con 0
password $$$$$
login
transport input none
line aux 0
password $$$$$
login
line vty 0 4
password $$$$$
login
!
end