mcanany
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Help with networking lab. Connectivity to 2811 router.
I have a simple lab design so far.
2 x 2960 Switches successfully trunked. Port Fa0/1 is trunked to each other.
I introduced a 2811 router. I'm simply trying to ping interface fa0/0 and cannot do it from one of the switches. As this is a lab I'll provide the configs below in full.
Any help is appreciated. I think I'm missing something very basic here. I haven't started the ROAS portion yet as I want to ensure I can ping the interface on the router first.
Switch:
Router config:
2 x 2960 Switches successfully trunked. Port Fa0/1 is trunked to each other.
I introduced a 2811 router. I'm simply trying to ping interface fa0/0 and cannot do it from one of the switches. As this is a lab I'll provide the configs below in full.
Any help is appreciated. I think I'm missing something very basic here. I haven't started the ROAS portion yet as I want to ensure I can ping the interface on the router first.
Switch:
!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname hq-sw2
!
enable secret 5 $1$mERr$hx5rVt7rPNoS4wqbXKX7m0
!
!
!
no ip domain-lookup
!
!
spanning-tree mode pvst
!
interface FastEthernet0/1
switchport mode trunk
!
interface FastEthernet0/2
!
interface FastEthernet0/3
!
interface FastEthernet0/4
!
interface FastEthernet0/5
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
!
interface FastEthernet0/14
!
interface FastEthernet0/15
!
interface FastEthernet0/16
!
interface FastEthernet0/17
!
interface FastEthernet0/18
!
interface FastEthernet0/19
!
interface FastEthernet0/20
!
interface FastEthernet0/21
!
interface FastEthernet0/22
!
interface FastEthernet0/23
!
interface FastEthernet0/24
description **Link to hq-router1
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
no ip address
shutdown
!
interface Vlan5
description **Mgmt
ip address 10.1.10.12 255.255.255.0
!
ip default-gateway 10.1.10.1
!
!
!
!
line con 0
password cisco
logging synchronous
login
history size 100
exec-timeout 0 0
!
line vty 0 4
password cisco
login
line vty 5 15
password cisco
login
!
!
end
Router config:
!
version 12.4
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname hq-router1
!
!
!
enable secret 5 $1$mERr$hx5rVt7rPNoS4wqbXKX7m0
!
!
!
!
ip cef
no ipv6 cef
!
!
!
!
!
!
!
!
!
!
no ip domain-lookup
!
!
spanning-tree mode pvst
!
!
!
!
!
!
interface FastEthernet0/0
description **Link to hq-sw2
ip address 10.1.10.1 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
description **Link to branch-sw2
ip address 172.16.0.1 255.255.255.0
duplex auto
speed auto
!
interface Vlan1
no ip address
shutdown
!
ip classless
!
ip flow-export version 9
!
!
!
!
!
!
!
line con 0
history size 100
exec-timeout 0 0
password cisco
login
!
line aux 0
password cisco
login
!
line vty 0 4
password cisco
login
!
!
!
end
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Router's fa0/0 interface sends untagged traffic, so that traffic belongs to VLAN 1 on switch since it is default VLAN on all switch ports, but router's interface Fa0/0 is in the same IP range as SVI for VLAN 5. So, you can resolve this (make switch and router ping each other) with add interface fa0/24 on switch to VLAN 5 as access port (and I guess that interface fa0/0 on router is not shut).
:)
Predrag,
That worked. It makes sense. The interface IP address is an IP on that VLAN 5 network. So in order to ping that interface I needed to setup that port as an access port on VLAN 5. I have a quick question though.
Lets assume at some point that I will have multiple VLANS on that side of the router. Will I want to make that a trunk instead? Is this where Router on a Stick comes into play?
Lastly, if I introduce OSPF, would I still set them up as trunks?
Sorry, I'm obviously a beginner.
Thank you!
If you setup multiple VLANs on switch you need to setup trunk just as you expect, that is router on a stick.
Simplified - if you want to introduce OSPF - you can't setup OSPF with 2960 switch (OSPF is not supported on 2960). :)
With L3 switch (OSPF is usually supported on those) you would setup it differently. You would set port as L3 port with
# no switchport
command, and then you would assign IP address to port, and then configure routing protocol.
And don't worry about being beginner, we were all beginners at some point, no need to apologize.
Simplified - if you want to introduce OSPF - you can't setup OSPF with 2960 switch (OSPF is not supported on 2960). :)
With L3 switch (OSPF is usually supported on those) you would setup it differently. You would set port as L3 port with
# no switchport
command, and then you would assign IP address to port, and then configure routing protocol.
And don't worry about being beginner, we were all beginners at some point, no need to apologize.
Please post a topology diagram or sketch.
- Is fa0/1 on hq-sw2 the trunk link to sw1?
- which switch is the router connected to?