09-26-2012 10:16 PM - edited 03-07-2019 09:08 AM
Hi Guys,
I have configured a router to route from a Class C network to a Class A network, although I just cant get a ping from one to the other. I can see the routing table and I only want to use directly connected routes and I have not enabled any protocols. Here is my running config and my routing table, am I missing something?
Thanks,
Christian#sh run
Building configuration...
Current configuration : 1590 bytes
!
version 12.3
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Christian
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$Kwwh$fbu5fbsjV8VqiKBbQ8dCP0
enable password enablepassword
!
username paul privilege 15 password xxx
username pauladm privilege 15 password 0 xxx
username name
no aaa new-model
ip subnet-zero
ip cef
!
!
!
!
ip name-server 192.168.2.200
ip ips po max-events 100
no ftp-server write-enable
!
!
!
!
!
!
!
interface FastEthernet0
no ip address
!
interface FastEthernet1
no ip address
shutdown
!
interface FastEthernet2
switchport access vlan 2
no ip address
!
interface FastEthernet3
no ip address
shutdown
duplex half
speed 10
!
interface FastEthernet4
no ip address
shutdown
duplex auto
speed auto
!
interface Vlan1
ip address 192.168.2.100 255.255.255.0
!
interface Vlan2
ip address 10.1.1.100 255.0.0.0
!
ip default-gateway 10.1.1.1
ip classless
!
!
ip http server
ip http authentication local
ip http secure-server
!
cdp timer 59
cdp holdtime 179
!
!
control-plane
!
banner exec ^CWelcome to the inner sanctum.^C
banner login ^C Please proceed if you are worthy.^C
banner motd ^CPaul's Cisco 871 Router.^C
!
line con 0
exec-timeout 120 20
login local
no modem enable
transport preferred all
transport output all
line aux 0
transport preferred all
transport output all
line vty 0 4
privilege level 15
password vtypassword
login local
transport preferred all
transport input telnet ssh
transport output all
!
scheduler max-task-time 5000
end
Christian#sh ip route
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 not set
C 10.0.0.0/8 is directly connected, Vlan2
C 192.168.2.0/24 is directly connected, Vlan1
09-26-2012 10:59 PM
Whats your setup and requirement: if you are looking for Intervlan-routing. please configure as below
interface FastEthernet2
no switchport access
no switch port access vlan2
no ip address
no shut
interface FastEthernet2.1
switchport mode trunk
switchport encapsulation dot1q 1 ---> where 1 is a vlan-id
interface FastEthernet2.2
switchport mode trunk
switchport encapsulation dot1q 2
exit
interface FastEthernet2
no shut
Please rate helpful posts,
Regards,
srikanth
09-27-2012 05:44 AM
Thanks Srikanth,
Thanks to your advice, I can now see that I need to enable vlan routing, as the Cisco 871 router does not have any layer 3 interfaces except for the 'WAN' port (FE4), which I am not using. The problem I face now is that I cant 'switchport access trunk' on my layer 2 ports (FE0 and FE2) because they will lose their IP addresses. They are both set with 'switchport access vlan' (Fe0 Vlan1 and Fe2 Vlan2). I f I switchport to trunk and then dot1q, I lose the IP addresses on the interfaces right?
09-27-2012 01:22 AM
Hi,
Kindly do the following:
871(config)vlan 2
871(config)int f0
871(config-if)switchport access vlan 1
871(config-if)switchport mode access
Plug a host on the switch port configured with the same subnet.
Sent from Cisco Technical Support iPad App
09-27-2012 01:42 AM
if you have tried everything else then remove"ip default-gateway"
---
Posted by WebUser Varun Uniyal from Cisco Support Community App
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