ā09-11-2023 09:35 AM
Hello,
I can ping the DNS 8.8.8.8 from the R54 Router and, similarly, can't ping the same from the R69 Router. my home router Gateway is 192.168.29.1.
R54 Router
R54#ping 192.168.29.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.29.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms
R54#ping 8.8.8.8
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 9/10/14 ms
R54#sh run
Building configuration...
Current configuration : 2252 bytes
!
! No configuration change since last restart
! NVRAM config last updated at 15:24:56 UTC Mon Sep 11 2023
!
version 15.7
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R54
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
!
!
!
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
interface Loopback0
ip address 54.54.54.54 255.255.255.255
!
interface Loopback1
ip address 10.10.1.1 255.255.255.0
!
interface Loopback2
ip address 10.10.2.1 255.255.255.0
!
interface Loopback3
ip address 10.10.3.1 255.255.255.0
!
interface Loopback4
ip address 10.10.4.1 255.255.255.0
!
interface Loopback5
ip address 10.20.1.1 255.255.255.0
!
interface Loopback6
ip address 10.20.2.1 255.255.255.0
!
interface Loopback7
ip address 10.20.3.1 255.255.255.0
!
interface Loopback8
ip address 10.20.4.1 255.255.255.0
!
interface Ethernet0/0
ip address 172.16.40.2 255.255.255.252
duplex auto
!
interface Ethernet0/1
ip address 172.16.60.2 255.255.255.252
duplex auto
!
interface Ethernet0/2
ip address dhcp
duplex auto
!
interface Ethernet0/3
no ip address
shutdown
duplex auto
!
router bgp 400
bgp log-neighbor-changes
network 10.10.1.0 mask 255.255.255.0
network 10.10.2.0 mask 255.255.255.0
network 10.10.3.0 mask 255.255.255.0
network 10.10.4.0 mask 255.255.255.0
network 10.20.1.0 mask 255.255.255.0
network 10.20.2.0 mask 255.255.255.0
network 10.20.3.0 mask 255.255.255.0
network 10.20.4.0 mask 255.255.255.0
network 54.54.54.54 mask 255.255.255.255
network 192.168.29.0
redistribute connected
redistribute static
neighbor 172.16.40.1 remote-as 200
neighbor 172.16.40.1 next-hop-self
neighbor 172.16.60.1 remote-as 300
neighbor 172.16.60.1 next-hop-self
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
ip route 0.0.0.0 0.0.0.0 192.168.29.1
line con 0
logging synchronous
line aux 0
line vty 0 4
login
transport input none
!
ntp server 34.202.215.187
ntp server pool.ntp.org
!
end
R69 Router
R69#sh ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
10.0.0.0/8 is variably subnetted, 14 subnets, 2 masks
B 10.10.1.0/24 [20/0] via 69.69.69.1, 03:13:52
B 10.10.2.0/24 [20/0] via 69.69.69.1, 03:13:52
B 10.10.3.0/24 [20/0] via 69.69.69.1, 03:13:52
B 10.10.4.0/24 [20/0] via 69.69.69.1, 03:13:52
B 10.20.1.0/24 [20/0] via 69.69.69.1, 03:13:52
B 10.20.2.0/24 [20/0] via 69.69.69.1, 03:13:52
B 10.20.3.0/24 [20/0] via 69.69.69.1, 03:13:52
B 10.20.4.0/24 [20/0] via 69.69.69.1, 03:13:52
B 10.30.1.0/30 [20/0] via 69.69.69.1, 03:13:52
B 10.30.1.4/30 [20/0] via 69.69.69.1, 03:13:52
B 10.30.1.8/30 [20/0] via 69.69.69.1, 03:13:52
B 10.30.1.32/30 [20/0] via 69.69.69.1, 03:13:52
B 10.30.1.36/30 [20/0] via 69.69.69.1, 03:13:52
B 10.30.1.40/30 [20/0] via 69.69.69.1, 03:13:52
52.0.0.0/32 is subnetted, 1 subnets
B 52.52.52.52 [20/0] via 69.69.69.1, 03:13:52
54.0.0.0/32 is subnetted, 1 subnets
B 54.54.54.54 [20/0] via 69.69.69.1, 03:13:52
59.0.0.0/30 is subnetted, 1 subnets
B 59.59.59.0 [20/0] via 69.69.69.1, 03:13:52
69.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
C 69.60.60.60/32 is directly connected, Loopback0
C 69.69.69.0/30 is directly connected, Ethernet0/1
L 69.69.69.2/32 is directly connected, Ethernet0/1
70.0.0.0/30 is subnetted, 1 subnets
B 70.70.70.0 [20/0] via 69.69.69.1, 03:13:52
76.0.0.0/30 is subnetted, 1 subnets
B 76.76.76.0 [20/0] via 69.69.69.1, 03:13:52
80.0.0.0/30 is subnetted, 1 subnets
B 80.80.80.0 [20/0] via 69.69.69.1, 03:13:52
86.0.0.0/30 is subnetted, 1 subnets
B 86.86.86.0 [20/0] via 69.69.69.1, 03:13:52
96.0.0.0/30 is subnetted, 1 subnets
B 96.96.96.0 [20/0] via 69.69.69.1, 03:13:52
172.16.0.0/30 is subnetted, 4 subnets
B 172.16.30.0 [20/0] via 69.69.69.1, 03:13:52
B 172.16.40.0 [20/0] via 69.69.69.1, 03:13:52
B 172.16.50.0 [20/0] via 69.69.69.1, 03:13:52
B 172.16.60.0 [20/0] via 69.69.69.1, 03:13:52
B 192.168.29.0/24 [20/0] via 69.69.69.1, 03:13:52
CE-10#ping 192.168.29.57
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.29.57, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms
CE-10#ping 192.168.29.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.29.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
CE-10#ping 8.8.8.8
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
ā09-11-2023 09:46 AM
Hello @R Manjunatha,
Where is CE-10 on your draw?
Do you test ping from CE-10 with source IP address ?
ā09-12-2023 06:32 AM
R69 is the CE-10 Router in the Diagram and I tried with a source IP address.
ā09-12-2023 08:36 AM
Hello @R Manjunatha,
Thanks for that clarification.
From R54 you ping you home router (.1) because R54 is directly connected to this home router with an interface in this range 192.168.29.0/24.
From R69 you ping 192.168.29.57, but ping failed to 192.168.29.1...this due to routing from your home router.
Does Home router has got IP route (static?) towards R69 ip 69.69.69.2 ?
ā09-13-2023 07:19 AM
No static IP route towards R69 IP 69.69.69.2. let me try this once.
ā09-13-2023 08:32 AM
Yes. I can be able to ping my home router gateway 192.168.29.1 but I could not be able to reach internet DNS 8.8.8.8
ā09-13-2023 08:39 AM
First step OK.
On CE-10 i dont see specific route towards 8 8.8.8.... thats the issue.
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