Network Troubleshooting *Please Help*Network Administration

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This topic contains 0 replies, has 1 voice, and was last updated by  6stringer 1 year, 4 months ago.

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  • #123159


    I’m going to try to explain this as best as possible..

    I’m working in packet tracer.

    I have a Router on a Stick set up on the left side as follows:
    PC1 Gateway:
    PC2 Gateway:
    Both connected to Sw1 via access links allowing vlan’s 10 and 20 respectively.
    The link between Sw1 and Router 1 is a trunk link with encap dot1q, currently allowing vlan’s 10,20,30,40.

    Trunk encap dot1q
    Ip add

    Trunk encap dot1q
    ip add

    ip add

    On the right side, I have a second Router on a stick setup as follows:
    PC3 Gateway:
    PC4 Gateway:

    Again, both connected to Sw4 via access links allowing vlan’s 30 and 40 respectively.
    The link between Sw4 and Router 2 is a trunk link with dot1q, currently allowing vlan’s 10,20,30,40

    Trunk encap dot1q
    ip add

    Trunk encap dot1q
    ip add

    ip add

    IN between Router1 and Router 2, I have Switch2 and Switch3. All links (Router1—switch2—-switch3—-router2) are configured as trunk links allowing vlan’s 10,20,30,40.

    I have static routes set up on both routers to the 10,20,30 and 40 networks.

    So here is my issue: Before i added switches 2 and 3, I could ping between all four hosts. After adding the switches I cannot get through them, but I can ping the 150 side of each router from their respective hosts.

    Note: I have not configured Vlan 150. I tried to do so as access links and I got Native Vlan mismatches, so i replaced it with trunk links allowing all four vlan’s.

    Any advice is appreciated.


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