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Cisco switch: 802.1q trunk to router, aka router-on-a-stick | Cisco switch | Tech-Recipes

Started by qdideas · 9 months ago

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9 comments

  • For 2600 series routers, I had to do a "no shutdown" on ethernet 0/0 interface for the trunk to come up and work properly.
  • Hello, I wonder how to create a 802.1q interface in cisco 2600 router with ios ver c2600-i-mz_122-1?
    it has one interface Ethernet 0/0
    but I searched about encapsulation .1q commands and couldn't find it.
    So i need your advice.
    Best Regards
    Dahab
  • You need fastEthernet interface.
  • You have the wrong IOS, go to Cisco's site and download this IOS....

    c2600-d-mz
  • And no, you dont need a Fast Ethernet interface to do encapsulation.
  • You do need FastEthernet interface. You cannot create a sub-interfaces from a regular Ethernet interface. So, you cannot use a router that doesn't have a fastethernet interface in a router on a stick configuration
  • try using ISL as the encapsulation. And if the router has a AUX port you can get a dongle that will turn it into a ethernet/fast ethernet port
  • its usuall not a good idea to use vlan 1 as your management vlan for security reasons.

    make sure to trunk the interface directly conecting the switch to the router.
  • veryyyyyyyyyyyyyy good help

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