Can someone tell me how to create sub interfaces in a 2500 series router, wihch doesn't have fast ethernet. Well, it's like this. I can create sub interfaces, but the moment I try giving an IP address, it says, that I have to enable, 802.10, ISL or 802.1Q
Please give me a solution for this.
I also can give more than one secondary IP addresses on Ethernet interface. i.e. One primary address, and at least two secondary addresses. Is that possible or is it some sort of a bug in the IOS image?
Thanks a lot for your info. But I have a doubt here. In a 2600 series router I think I could creat sub-interfaces and give an IP address to that sub-interface although I cannot do it in this 2500 series. Is it may be because 2600 series has fast ethernet?
We can create sub-interfaces even in the serial interfaces can't we, when we configure Frame-Relay?
If I remember from a long time, the subinterface on a Cisco 2500 Ethernet interface is only to run different encapsulation of the IPX protocol. I do not beleive you can create subinterface for IP. The cisco 2500 does not support ISL or Dot1Q encapsulation on the Ethernet interface.
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