Destination Host Unreachable

R.Florin · ‎01-19-2021

Hi,i have a problem in Packet tracer,im trying to ping from Lan 1,PC 11 and PC11 to Lan 2,PC 21 and im getting this error "Destination host unreachable.Can someone help me please ? Thank you !

I uploaded the pkt.

Seb Rupik · ‎01-19-2021

Hi there,

R1 has no route to the destination subnet 10.200.200.0/24 and also R2 (hostname R20) does not has ip routing enabled. to fix this apply the following:

!R1
!
ip route 10.200.200.0 255.255.255.0 10.0.0.2
!


!R20
!
ip routing
!

Ideally you should want to configure an IGP instead of static routes, in which case the following is preferred:

! R1
!
router ospf 1
 passive-interface default
 no passive-interface GigabitEthernet0/0
 network 10.0.0.0 0.0.0.255 area 0.0.0.0
 network 10.100.100.0 0.0.0.255 area 0.0.0.0
!


! R20
!
ip routing
!
router ospf 1
 passive-interface default
 no passive-interface GigabitEthernet0/0
 network 10.0.0.0 0.0.0.255 area 0.0.0.0
 network 10.200.200.0 0.0.0.255 area 0.0.0.0
!

cheers,

Seb.

R.Florin · ‎01-20-2021

Hello,It's working now.Thank you !

Seb Rupik · ‎01-21-2021

@R.Florin That is good to hear. I hope you can see why using an IGP is preferable to static routing. Please mark this post as answered.

cheers,

Seb.