11-27-2017 12:04 PM - edited 03-10-2019 01:13 PM
here is the configuration i have
R2#sh ip int bri
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.2.100 YES manual up up
Serial0/0 10.0.0.2 YES manual up up
FastEthernet0/1 unassigned YES manual administratively down down
Serial0/1 unassigned YES NVRAM administratively down down
R2#sh ip rout
Gateway of last resort is not set
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.0.0.0/8 is directly connected, Serial0/0
C 10.0.0.1/32 is directly connected, Serial0/0
S 192.168.1.0/24 [1/0] via 10.0.0.1
C 192.168.2.0/24 is directly connected, FastEthernet0/0
*****R1 ******
R1#sh ip route
Gateway of last resort is not set
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.0.0.2/32 is directly connected, Serial0/0
C 10.0.0.0/8 is directly connected, Serial0/0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
S 192.168.2.0/24 [1/0] via 10.0.0.2
R1#sh ip int bri
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.1.100 YES manual up up
Serial0/0 10.0.0.1 YES manual up up
FastEthernet0/1 unassigned YES manual administratively down down
Serial0/1 unassigned YES NVRAM administratively down down
pinging between two routers but cant ping from R1 side pc to R2 side pc
plese help
Sanal,
Thanks in Advance.
11-27-2017 01:46 PM
Hello
Can you ping from RTR 1 to RTR2 sourced from its lan interface and the same fro RTR2
example -
R1 -
ping 10.0.0.1 source fa0/0
ping 192.168.2.x source fa0/0
R2
ping 10.0.0.2 source fa0/0
ping 192.168.1.x source fa0/0
if you so check your pcs - for software fw negating echo-reply and their ip addressing/subnet/default-gateway
res
Paul
11-28-2017 09:18 AM
Hi Paul, thanks for helping me out.
yes i can ping all interfaces but not from pc to , from pc i can ping to its own interface and default gateway
*****************R2******************
R2#sh ip interface brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.2.100 YES NVRAM up up
Serial0/0 10.0.0.2 YES NVRAM up up
FastEthernet0/1 unassigned YES NVRAM administratively down down
Serial0/1 unassigned YES NVRAM administratively down down
R2#ping 10.0.0.1 source fa0/0
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.0.1, timeout is 2 seconds:
Packet sent with a source address of 192.168.2.100
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/4/4 ms
R2#ping 10.0.0.1 source fa0/0
R2#ping 192.168.2.100 source fa0/0
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.2.100, timeout is 2 seconds:
Packet sent with a source address of 192.168.2.100
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
**************R1*******************
R1#sh ip interface brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.1.100 YES NVRAM up up
Serial0/0 10.0.0.1 YES NVRAM up up
FastEthernet0/1 unassigned YES NVRAM administratively down down
Serial0/1 unassigned YES NVRAM administratively down down
R1#ping 10.0.0.2 sou
R1#ping 10.0.0.2 source fa0/0
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.0.2, timeout is 2 seconds:
Packet sent with a source address of 192.168.1.100
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/4/4 ms
R1#ping 192.168.2.100 sou
R1#ping 192.168.2.100 source fa0/0
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.2.100, timeout is 2 seconds:
Packet sent with a source address of 192.168.1.100
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/4 ms
11-27-2017 02:45 PM - edited 11-27-2017 02:49 PM
Hi
Please correct me but you are using serial link between the routers, right?
What is the subnet mask of the network used on serial link? 10.0.0.0/8?
Your config should be using /30
Router 1
interface serial 0/0
ip address 10.0.0.1 255.255.255.252
clock rate 64000
no shutdown
interface fa0/0
ip address 192.168.1.1 255.255.255.0
no shutdown
ip route 192.168.2.0 255.255.255.0 10.0.0.2
Router 2
interface serial 0/0
ip address 10.0.0.2 255.255.255.252
no shutdown
interface fa0/0
ip address 192.168.2.1 255.255.255.0
no shutdown
ip route 192.168.1.0 255.255.255.0 10.0.0.1
11-28-2017 09:27 AM
Hi Julio,
yes im using WIC 1DSU-T1 V2 to connect routers
the settings i used is:-
R1
Interface serial 0/0
service-module t1 clock source internal
service-module t1 timeslots 1-24 speed 64
service-module t1 framing esf
service-module t1 linecode b8zs
ip address 10.0.0.1 255.0.0.0
encapsulation ppp
no shut
R2
Interface serial 0/0
service-module t1 clock source line
service-module t1 timeslots 1-24 speed 64
service-module t1 framing esf
service-module t1 linecode b8zs
ip address 10.0.0.2 255.255.255.0
encapsulation ppp
no shut
*****
runnung config
*****
R1#sh run
Building configuration...
Current configuration : 1389 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$c7Op$loTHknYM/P7bE2pclwDns0
!
no aaa new-model
memory-size iomem 25
no network-clock-participate slot 1
no network-clock-participate wic 0
ip cef
!
!
ip auth-proxy max-nodata-conns 3
ip admission max-nodata-conns 3
!
!
ip domain name ccnar1.com
!
!
!
!
username sanal password 7 03174803
!
!
ip ssh version 2
!
!
!
!
interface FastEthernet0/0
ip address 192.168.1.100 255.255.255.0
duplex auto
speed auto
!
interface Serial0/0
ip address 10.0.0.1 255.0.0.0
encapsulation ppp
fair-queue
service-module t1 timeslots 1-24
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/1
no ip address
shutdown
!
ip forward-protocol nd
ip route 192.168.2.0 255.255.255.0 10.0.0.2
!
ip http server
no ip http secure-server
!
!
!
control-plane
!
!
!
banner login ^C ****THIS IS MY R1**** ^C
!
line con 0
exec-timeout 15 0
password 7 050809013243420C
logging synchronous
login
history size 50
line aux 0
password 7 045A1E1E
login
history size 50
line vty 0 4
password 7 1311121E050910
login local
history size 50
transport input telnet ssh
line vty 5 181
password 7 03105E07080A35
login local
history size 50
transport input telnet ssh
!
!
end
R1#
11-28-2017 03:05 PM
Your subnet masks on the 2 serial interfaces do not match.
11-29-2017 08:28 AM
11-28-2017 12:05 PM
11-28-2017 12:09 PM
Hi
Have you tried matching the subnet mask on the P2P?
ip address 10.0.0.1 255.255.255.0
11-27-2017 05:10 PM
Are the servers and router ethernet ports connected to switches? If so, are all switchports set up in their respective vlans? Can each PC ping its respective (local) gateway (presumably the router’s ethernet port)?
11-28-2017 09:37 AM
Hi,
# yes, the routers connected to switches and there is no vlan configured (default vlan 1)
# yes, the pcs ping only to its local gateway
Switch#sh int fa0/1 switchport
Name: Fa0/1
Switchport: Enabled
Administrative Mode: static access
Operational Mode: static access
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: native
Negotiation of Trunking: Off
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Administrative Native VLAN tagging: enabled
Voice VLAN: none
***********
Switch#sh int fa0/2 switchport
Name: Fa0/2
Switchport: Enabled
Administrative Mode: static access
Operational Mode: static access
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: native
Negotiation of Trunking: Off
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Administrative Native VLAN tagging: enabled
Voice VLAN: none
11-28-2017 12:59 PM
Hello
So did you clarify the clients have the correct subnet mask and default-gateway.
When you ping between each client can you post the arp please
both rtrs:
sh ip arp
Lastly if applicable can you change the encapsulation from PPP to HDLC on the serial interfaces and test again
res
Paul
11-29-2017 09:04 AM
R1#sh ip arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 192.168.1.100 - 000f.8f08.76e0 ARPA FastEthernet0/0
Internet 192.168.1.1 4 0860.6e47.b1dd ARPA FastEthernet0/0
R2#sh ip arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 192.168.2.100 - 0012.0144.6420 ARPA FastEthernet0/0
Internet 192.168.2.1 3 001e.3369.f9d1 ARPA FastEthernet0/0
***************
Changed subnetmask same as p2p
R1#sh ip int se0/0
Serial0/0 is up, line protocol is up
Internet address is 10.0.0.1/24
Broadcast address is 255.255.255.255
Address determined by setup command
MTU is 1500 bytes
Helper address is not set
Directed broadcast forwarding is disabled
Outgoing access list is not set
Inbound access list is not set
Proxy ARP is enabled
Local Proxy ARP is disabled
Security level is default
Split horizon is enabled
ICMP redirects are always sent
ICMP unreachables are always sent
ICMP mask replies are never sent
IP fast switching is enabled
IP fast switching on the same interface is enabled
IP Flow switching is disabled
IP CEF switching is enabled
IP CEF Fast switching turbo vector
IP multicast fast switching is enabled
IP multicast distributed fast switching is disabled
--More--
Still can't ping from 192.168.1.1 to 192.168.2.1
11-28-2017 03:04 PM
If you do a trace route from the pc to the other pc, where does it die? You could also ping each hop along the path to see where you start to lose connectivity (e.g. near-side ingress interface/default gateway, near-side serial interface, remote side serial interface, remote side exit/egress interface, etc.).
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