02-28-2023 10:04 AM
i need to make a three router network that can ping to eachother. i have the first two networks working. but the third gives a error "destination host unreachable" any help will be appreciated
here is the router setup :https://ufile.io/chn0ij3n
here is the instructions from the teacher, should help you understand how i made it: https://docs.google.com/document/d/1i4I6Ie8M3aiROvydE0vFTo28f6AxTmw7EQJEgA3KR8Q/edit?usp=sharing
02-28-2023 10:29 AM
destination host unreachable = this means the next hop or end device do not know how to reach the destination.
traceroute helps you, where it stops, that is the device you need to investigate the routing.
Rather instruction manual,. you need to provide the configuration you have done on your lab
post below information from all devices :
show run
show IP route
show IP interface brief
02-28-2023 01:34 PM - edited 02-28-2023 01:59 PM
show run
router 0=.
ip dhcp pool america
network 192.168.1.0 255.255.255.0
default-router 192.168.1.1
!
!
!
ip cef
router 1 =
ip dhcp pool asia
network 192.168.2.0 255.255.255.0
default-router 192.168.2.1
!
!
!
ip cef
router 2=
ip dhcp pool europe
network 192.168.39.0 255.255.255.0
default-router 192.168.39.1
!
!
!
no ip cef
show ip route
router 0=
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 1 subnets
C 10.0.0.0 is directly connected, Serial2/0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
O 192.168.2.0/24 [110/65] via 10.0.0.2, 00:15:32, Serial2/0
router 1=
10.0.0.0/24 is subnetted, 2 subnets
C 10.0.0.0 is directly connected, Serial2/0
C 10.0.1.0 is directly connected, Serial3/0
O 192.168.1.0/24 [110/65] via 10.0.0.1, 00:17:09, Serial2/0
C 192.168.2.0/24 is directly connected, FastEthernet0/0
router 2=
10.0.0.0/24 is subnetted, 1 subnets
C 10.0.0.0 is directly connected, Serial3/0
C 192.168.39.0/24 is directly connected, FastEthernet0/0
show ip interface brief
router 0=
FastEthernet0/0 192.168.1.1 YES manual up up
FastEthernet1/0 unassigned YES unset administratively down down
Serial2/0 10.0.0.1 YES manual up up
Serial3/0 unassigned YES unset administratively down down
FastEthernet4/0 unassigned YES unset administratively down down
FastEthernet5/0 unassigned YES unset administratively down down
router 1=
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.2.1 YES manual up up
FastEthernet1/0 unassigned YES unset administratively down down
Serial2/0 10.0.0.2 YES manual up up
Serial3/0 10.0.1.2 YES manual up up
FastEthernet4/0 unassigned YES unset administratively down down
FastEthernet5/0 unassigned YES unset administratively down down
Router2=
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.2.1 YES manual up up
FastEthernet1/0 unassigned YES unset administratively down down
Serial2/0 10.0.0.2 YES manual up up
Serial3/0 10.0.1.2 YES manual up up
FastEthernet4/0 unassigned YES unset administratively down down
FastEthernet5/0 unassigned YES unset administratively down down
hope this helps. if there is any more information you need. let me know
03-01-2023 11:41 PM
as i see your config Router 1 and Router 2 have same IP address on the interface, which conflicts in the network
change to un used IP address and test it.
03-02-2023 06:00 AM - edited 03-02-2023 06:11 AM
When you say “have the same ip address on the interface. Do you mean serial interface or the network such as.
ip dhcp pool asia
network 192.168.2.0 255.255.255.0
i have changed the serial ports already so now each serial port has a different ip
Please specify where the ip address needs to be changed
03-03-2023 12:05 AM
router 1=
FastEthernet0/0 192.168.2.1 YES manual up up
Serial2/0 10.0.0.2 YES manual up up
Serial3/0 10.0.1.2 YES manual up up
Router2=
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.2.1 YES manual up up
Serial2/0 10.0.0.2 YES manual up up
Serial3/0 10.0.1.2 YES manual up up
If you have changed this above post new config as below
show run
show IP interface brief
show cdp neigh
show IP arp
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