Cisco – GNS3 – Telnet issue

ciscogns3labrouter

I have created the following Network in GNS3 GNS3 Simple Network Diagram
Let me explain the SetUp:

  1. The internet cloud Cloud 1 is connected to my LAN and not loopback.
  2. R1 routers' F0/0 is getting the IP from DHCP, to which i can telnet and ping from any remote host in my LAN.
  3. R1 also configured with SNMP access (public community string)
  4. The IP for R1 routers' F0/1 interface is manually configured.
  5. This interface i can ping from any remote host on my LAN however Telnet fails.
    R2 routers' F0/0 ip is manully configured. The situation is same here, where i am able to ping however telnet is failing. All the configuration is same between R1 and R2.

Just mentioning again, all the interfaces are ping-able from any Remote Host in the same LAN, however only R1's F0/0 is telnet-able (hope that is a word)

Is there some configuration change that i can do to get telnet access to all the interfaces?

P.S: My cloud internet gateway is 10.226.22.1

Configuration of R1:

Building configuration...

Current configuration : 2016 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
!
!
ip cef
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
 ip address dhcp
 duplex half
!
interface FastEthernet1/0
 ip address 10.226.22.34 255.255.255.224
 duplex auto
 speed auto
!
interface FastEthernet1/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface GigabitEthernet2/0
 no ip address
 shutdown
 negotiation auto
!
interface GigabitEthernet3/0
 no ip address
 shutdown
 negotiation auto
!
interface Ethernet4/0
 no ip address
 shutdown
 duplex half
!
interface Ethernet4/1
 no ip address
 shutdown
 duplex half
!
interface Ethernet4/2
 no ip address
 shutdown
 duplex half
!
interface Ethernet4/3
 no ip address
 shutdown
 duplex half
!
interface Ethernet4/4
 no ip address
 shutdown
 duplex half
!
interface Ethernet4/5
 no ip address
 shutdown
 duplex half
!
interface Ethernet4/6
 no ip address
 shutdown
 duplex half
!
interface Ethernet4/7
 no ip address
 shutdown
 duplex half
!
interface FastEthernet5/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet5/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial6/0
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial6/1
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial6/2
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial6/3
 no ip address
 shutdown
 serial restart-delay 0
!
router rip
 network 10.0.0.0
!
ip route 0.0.0.0 0.0.0.0 10.226.22.1
!
ip http server
no ip http secure-server
ip http path flash:
!
!
snmp-server community public RO
no cdp advertise-v2
!
!
!
!
control-plane
!
!
!
!
!
!
gatekeeper
 shutdown
!
!
telephony-service
 max-conferences 4 gain -6
 web admin system name cisco secret 5 $1$1pTn$/eGx7afnUPhFB2AqoFApH.
 dn-webedit
 time-webedit
!
!
line con 0
 stopbits 1
line aux 0
line vty 0 4
!
!
end

Configuration of R2:

Building configuration...

Current configuration : 2119 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
!
!
ip cef
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
 ip address 10.226.22.35 255.255.255.224
 duplex half
!
interface FastEthernet1/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet1/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface GigabitEthernet2/0
 no ip address
 shutdown
 negotiation auto
!
interface GigabitEthernet3/0
 no ip address
 shutdown
 negotiation auto
!
interface Ethernet4/0
 no ip address
 shutdown
 duplex half
!
interface Ethernet4/1
 no ip address
 shutdown
 duplex half
!
interface Ethernet4/2
 no ip address
 shutdown
 duplex half
!
interface Ethernet4/3
 no ip address
 shutdown
 duplex half
!
interface Ethernet4/4
 no ip address
 shutdown
 duplex half
!
interface Ethernet4/5
 no ip address
 shutdown
 duplex half
!
interface Ethernet4/6
 no ip address
 shutdown
 duplex half
!
interface Ethernet4/7
 no ip address
 shutdown
 duplex half
!
interface FastEthernet5/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet5/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial6/0
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial6/1
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial6/2
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial6/3
 no ip address
 shutdown
 serial restart-delay 0
!
router rip
 network 10.0.0.0
!
ip route 0.0.0.0 0.0.0.0 10.226.22.34
!
ip http server
no ip http secure-server
ip http path flash:
!
!
no cdp advertise-v2
!
!
!
!
control-plane
!
!
!
!
!
!
gatekeeper
 shutdown
!
!
telephony-service
 max-conferences 4 gain -6
 web admin system name cisco secret 5 $1$/jP3$0HbV8qC5BIn8Ezww4Nuv7.
 dn-webedit
 time-webedit
!
!
line con 0
 stopbits 1
line aux 0
line vty 0 4
 login
 transport input telnet
 transport output telnet
line vty 5 15
 login
 transport input telnet
 transport output telnet
!
!
end

As an additional info, my gateway for R1 is 10.226.22.1 which is not reachable from R2. (Maybe i need to somehow get the gateway reachable from R2?)

Routing info of R1:

Codes: 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

Gateway of last resort is 10.226.22.1 to network 0.0.0.0

     10.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
S       10.238.60.13/32 [254/0] via 10.226.22.1, FastEthernet0/0
C       10.226.22.32/27 is directly connected, FastEthernet1/0
C       10.226.22.0/27 is directly connected, FastEthernet0/0
S*   0.0.0.0/0 [1/0] via 10.226.22.1

Routing info of R2:

Codes: 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

Gateway of last resort is 10.226.22.34 to network 0.0.0.0

     10.0.0.0/27 is subnetted, 2 subnets
C       10.226.22.32 is directly connected, FastEthernet0/0
R       10.226.22.0 [120/1] via 10.226.22.34, 00:00:15, FastEthernet0/0
S*   0.0.0.0/0 [1/0] via 10.226.22.34

Best Answer

When you want to telnet to a Cisco device, you must have a password configured for the VTY lines. Use something like this:

line vty 0 15
 logging synchronous
 exec-timeout 15 0
 password <your telnet password>
 login
 transport input telnet
!
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