Need a bit of help here please!

Hi all,

I'm very fresh at most of this CCNA stuff, however I have 2 Cisco 1721s and 2 2950s. I'm trying to do this lab/exercise/test I found here , however I can't ping either routers ethernet port from within the other routers console. I can ping the opposite routers serial interface with an successful result.

I have both routers ethernet ports connected to a 8 port dlink unmanged 10/100 ethernet switch.

Have both routers connected via serial interfaces with an DCE/DTE cable.

Configured routers using console rollover cable. What am I missing, erased running-config multiple times and started over, making sure I entered each and every command correctly like the website explains.

NOTE: Only difference is, the website instructions says to configure s1 on router 2(DTE side) but I only have 1 WIC installed on that router and its in slot WIC0 so I configured s0 on that one instead, is this the culprit maybe, do I need to move the WIC to the WIC1 slot? My 2nd guess is something being wrong on the switch side of things.

I am just trying this scenario to see how things work, play around with lots of linux flavors so I'm pretty comfy working from CLI. I will start my actual CCNA R/S studies after this weekend.

Thanks,
Jwalk33

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Comments

DCD

You have to show your configuration and show interface output so we have something to work with. From your description it sounds like you configured it wrong and connected to the wrong ports.

jwalk33

Here is "sh ip route and int for RouterB"

RouterB#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

172.16.0.0/24 is subnetted, 1 subnets
C 172.16.10.0 is directly connected, Serial0
RouterB#

RouterB#sh ip int
FastEthernet0 is up, line protocol is down
Internet address is 172.16.11.1/24
Broadcast address is 255.255.255.255
Address determined by non-volatile memory
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 disabled
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
IP route-cache flags are Fast, CEF
Router Discovery is disabled
IP output packet accounting is disabled
IP access violation accounting is disabled
TCP/IP header compression is disabled
RTP/IP header compression is disabled
Policy routing is disabled
Network address translation is disabled
BGP Policy Mapping is disabled
WCCP Redirect outbound is disabled
WCCP Redirect inbound is disabled
WCCP Redirect exclude is disabled
Serial0 is up, line protocol is up
Internet protocol processing disabled
RouterB#

==========================================================
Here is "sh ip route and int" for RouterA

RouterA#sh ip int
FastEthernet0 is up, line protocol is up
Internet address is 172.16.12.1/24
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 disabled
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
IP route-cache flags are Fast, CEF
Router Discovery is disabled
IP output packet accounting is disabled
IP access violation accounting is disabled
TCP/IP header compression is disabled
RTP/IP header compression is disabled
Policy routing is disabled
Network address translation is disabled
BGP Policy Mapping is disabled
WCCP Redirect outbound is disabled
WCCP Redirect inbound is disabled
WCCP Redirect exclude is disabled
Serial0 is up, line protocol is up
Internet address is 172.16.10.1/24
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
IP route-cache flags are Fast, CEF
Router Discovery is disabled
IP output packet accounting is disabled
IP access violation accounting is disabled
TCP/IP header compression is disabled
RTP/IP header compression is disabled
Policy routing is disabled
Network address translation is disabled
BGP Policy Mapping is disabled
WCCP Redirect outbound is disabled
WCCP Redirect inbound is disabled
WCCP Redirect exclude is disabled
RouterA#

RouterA#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

172.16.0.0/24 is subnetted, 2 subnets
C 172.16.12.0 is directly connected, FastEthernet0
C 172.16.10.0 is directly connected, Serial0
RouterA#

Ok, this is what I have.

Thanks DCD!

Z3-Masterd

Without reading the lab, are you running a routing protocol? If you can ping a directly connected interface but not one on the other side of the router you're directly connected to, a good place to start is making sure that the router KNOWS how to even get there. If it doesn't, you've found your problem.

sh ip route
sh run

jwalk33

Here is what I'm trying to do, see link below please!

CCNA Certification: Basic Two Router Lab

jwalk33

Here is "sh ip route" from RouterB after I inserted the WIC back in WIC0 slot, before it was in WIC1. Neither worked.

RouterB#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

172.16.0.0/24 is subnetted, 2 subnets
C 172.16.10.0 is directly connected, Serial0
C 172.16.11.0 is directly connected, FastEthernet0
RouterB#

jwalk33

ping result from RouterB to ethernet int on RouterA

RouterB#ping 172.16.12.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.12.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
RouterB#

jwalk33

I'm stuck at the part where it says I should be able to ping either routers Ethernet int from opposite router.

DCD

Just a quick look over I don't see your serial interface on router B and the protocol on router B f0/0 is down. Do a sh ip int bri on both routers and a copy of the sh run.

jwalk33

RouterB sh ip int bri output

RouterB#sh ip int bri
Interface IP-Address OK? Method Status Protocol
FastEthernet0 172.16.11.1 YES NVRAM up up
Serial0 172.16.10.2 YES NVRAM up up
RouterB#

============================================

RouterA sh ip int bri output

RouterA>sh ip int bri
Interface IP-Address OK? Method Status Protocol
FastEthernet0 172.16.12.1 YES manual up down
Serial0 172.16.10.1 YES manual up up
RouterA>

===============================================
sh run RouterA

RouterA#sh run
Building configuration...

Current configuration : 741 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname RouterA
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$Ksil$tZOw.yfDvTDs1YjJtf/wg0
!
no aaa new-model
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
!
!
!
!
ip cef
!
!
!
!
!
interface FastEthernet0
description LAN Network for Router A
ip address 172.16.12.1 255.255.255.0
speed auto
!
interface Serial0
description Network connection to Router B
ip address 172.16.10.1 255.255.255.0
clock rate 250000
no fair-queue
!
ip forward-protocol nd
no ip http server
!
!
!
!
!
!
control-plane
!
!
line con 0
line aux 0
line vty 0 4
password routeraputty
login
!
end

RouterA#

=============================================
sh run RouterB

RouterB#sh run
Building configuration...

Current configuration : 706 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname RouterB
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$d2SI$85P4ZmOoSd1knoxX5P24d1
!
no aaa new-model
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
!
!
!
!
ip cef
!
!
!
!
!
interface FastEthernet0
description LAN Network for Router B
ip address 172.16.11.1 255.255.255.0
speed auto
!
interface Serial0
description Network connection to RouterA
ip address 172.16.10.2 255.255.255.0
!
ip forward-protocol nd
no ip http server
!
!
!
!
!
!
control-plane
!
!
line con 0
line aux 0
line vty 0 4
password routerbputty
login
!
end

RouterB#

Thanks DCD!

Adam B

jwalk33 wrote: »

I'm stuck at the part where it says I should be able to ping either routers Ethernet int from opposite router.

did you configure rip or igrp/eigrp yet? based on your sh ip route it doesn't seem like it, which means that, for example, router b doesn't have a route to router a's Ethernet port, as it is in a different LAN and is not directly connected to Router b, and same goes with router a to router b's Ethernet port. Try configuring a routing protocol such as rip/igrp/eigrp as the lab stated, on both ends of the router, and you will be able to establish connections with the networks specified. goodluck

DCD

Additionally you need a routing protocol or static route to reach the Lan network on the opposite router.

jwalk33

Wow, I never saw that in the lab up to this point, guess I better have a closer look.

Thanks Adam B!

jwalk33

DCD wrote: »

Additionally you need a routing protocol or static route to reach the Lan network on the opposite router.

Thanks again DCD!

jwalk33

Adam B wrote: »

did you configure rip or igrp/eigrp yet? based on your sh ip route it doesn't seem like it, which means that, for example, router b doesn't have a route to router a's Ethernet port, as it is in a different LAN and is not directly connected to Router b, and same goes with router a to router b's Ethernet port. Try configuring a routing protocol such as rip/igrp/eigrp as the lab stated, on both ends of the router, and you will be able to establish connections with the networks specified. goodluck

Okay, I got it to work, guess I had to go to the next step:

RouterA
RouterA>en
RouterA#config t
Enter configuration commands, one per line. End with CNTL/Z.
RouterA(config)#router RIP
RouterA(config-router)#network 172.16.12.0
RouterB
RouterB>en
RouterB#config t
Enter configuration commands, one per line. End with CNTL/Z.
RouterB(config)#router RIP
RouterB(config-router)#network 172.16.11.0

Now I'm able to ping the Ethernet interfaces on both routers from the opposite routers.

Thanks all!

jwalk33

Thanks Z3-Mastered!

jwalk33

Adam B wrote: »

did you configure rip or igrp/eigrp yet? based on your sh ip route it doesn't seem like it, which means that, for example, router b doesn't have a route to router a's Ethernet port, as it is in a different LAN and is not directly connected to Router b, and same goes with router a to router b's Ethernet port. Try configuring a routing protocol such as rip/igrp/eigrp as the lab stated, on both ends of the router, and you will be able to establish connections with the networks specified. goodluck

You were right on, thanks. Now time to just sit here and dissect every thing up to this point and hope it all sinks in.