Home > Ticket 9 – Switchport trunk

Ticket 9 – Switchport trunk

April 28th, 2018 in TSHOOT v2 Go to comments

Configuration of ASW1
interface PortChannel13
switchport mode trunk
switchport trunk allowed vlan 20,200
!
interface PortChannel23
switchport mode trunk
switchport trunk allowed vlan 20,200
!
interface FastEthernet1/0/1
switchport mode access
switchport access vlan 10
shutdown
!
interface FastEthernet1/0/2
switchport mode access
switchport access vlan 10

 

Ans1)ASW1
Ans2)Switch to switch connectivity
Ans3)Under interface Port-Channel 13, 23, add vlan 10,200 and then no shutdown interface fa1/0/1

Comments (11) Comments
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  1. Vasya
    November 20th, 2019

    @Kuzma
    For ticket switchport-trunk better type show int trunk or show int port 13 – 23
    https://www.networktut.com/tshoot-ticket-9nk – your answer is correct

  2. Dmytro
    November 21st, 2019

    Does anyone know what is the question to this ticket?

  3. Spaurito
    November 30th, 2019

    Dmytro:
    The question is the same for all IPv4 Tickets. Not able to ping the web server 209.65.200.241

    This ticket is missing the interface for vlan 10 in access mode

  4. Spaurito
    November 30th, 2019

    CORRECTION:

    Dmytro:
    The question is the same for all IPv4 Tickets. Not able to ping the web server 209.65.200.241

    This ticket is missing vlan 10 on the trunk for port-channels 13 and 23

  5. abdullah
    December 10th, 2019

    failed today, there were three ipv6 tickets. one r2 ,one r3, the third one was everything ok .no problem in the tunnel interface r3, ipv6 enable r2 or redist on r4. I couldn’t find any logical reason.

    other ticket was interfaces of sw1 down down administratively shutdown. in the show run , the both interfaces in access mod and access vlan 10, no port security mentioned, there was command shutdown at the end of each interface. I couldn’t find answer to it where the answer should be ” no should down command”

  6. ItsShowtime
    January 2nd, 2020

    In the PacketTracer LAB, all needed VLANs are allowed. This is probably a mistake in the LAB setup.

  7. grizo
    January 5th, 2020

    New version:

    First issue: Certain vlans allowed under interface Port-Channel 13, and not under F0/19-20:

    ASW1#sh running-config

    interface Port-channel13
    description L2 dot1Q Trunk to DSW1
    switchport trunk allowed vlan 1,10,20,200,1002-1005 ***
    switchport trunk encapsulation dot1q
    switchport mode trunk

    interface FastEthernet0/19
    switchport trunk encapsulation dot1q
    switchport mode trunk
    channel-group 13 mode on
    duplex full
    speed 100
    !
    interface FastEthernet0/20
    switchport trunk encapsulation dot1q
    switchport mode trunk
    channel-group 13 mode on
    duplex full
    speed 100
    !

    Solution:

    ASW1#configure terminal
    ASW1(config)#int range f0/19-20
    ASW1(config-if-range)#switchport trunk allowed vlan 1,10,20,200,1002-1005
    ASW1(config-if-range)#end
    ASW1#wr

    After applying this, ASW1 and DSW1 become neighbors, confirm by running:

    show cdp neighbors

    Second issue:

    DSW1#sh running-config

    interface Vlan10
    description Client VLAN from ASW1
    mac-address 00e0.a3e3.3901
    ip address 10.2.1.1 255.255.255.0
    ip helper-address 10.1.21.129 *** Wrong DHCP relay

    Solution:

    DSW1#configure terminal
    DSW1(config)#int vlan 10
    DSW1(config-if)#ip helper-address 10.1.4.5 *** Router 4
    DSW1(config-if)#end
    DSW1#wr

  8. libka
    January 6th, 2020

    ip helper-address 10.1.21.129 *** Wrong DHCP relay
    …Is the loopback of R4. it should not be a problem

  9. Red Devil
    January 6th, 2020

    Saw exact same issue with port security as Abdullah above. “sh ip int brief” showed fa1/0/1 as administratively down. “sh int fa1/0/1” showed as administratively down so no err-disabled. No port security configured under fa1/0/1 interface. “sh port-security fa1/0/1” showed the port shutdown due to port security violation. This left me stumped and does not make sense.

  10. jihad
    January 13th, 2020

    @Red Devil : so what was the problrm if it wasnot portsecurity command ? have you passed the exam?

  11. Henrico
    January 18th, 2020

    Guys,
    Don’t mess it up and confuse other students. Just follow a certain strategy and it’s gonna be alright.

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