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New Member

Cisco 877 IP and Subnet

Hi guys,

I am preatty new to the Cisco world and as such I am aiming for the CCNA certification. I got the ciscopress CCENT/CCNA ICND1 and ICND2 books and I am loving it.

Now to the question. I have a Cisco 877 router provided to me by Bell Canada. I don't have the EXEC password so I am really limited to what I can do with the router. Now, when i got the router, it came with a letter stating all the static IP's that I have with the sunbet mask and so on. Here is a copy:

BID Service & Subscribed Bandwidth     Adsl extra 6 meg

ADSL, SPID or CKT Number

Installation Address

IP Addresses     70.25.250.16 up to including70.25.250.23

address assigned to the network     70.25.250.16

address assigned to the router/gateway

Usable IP addresses     70.25.250.18 to 70.25.250.22

address assigned to the broadcast     70.25.250.23

Subnet mask     255.255.255. 248

Primary DNS     67.69.184.7

Secondary DNS     67.69.184.199

Router Type     Cisco 877

Now from what you can see 70.25.250.16 is a clas A network and the Subnet is Class C. I spoke to a Bell Canada technician and he assured me that everything is OK. So my question is, is it possible to have Class A network with a Class C Subnet or is it a mistake.

Any help to a newbie is appreciated.

Thanks

  • WAN Routing and Switching
2 REPLIES
Gold

Cisco 877 IP and Subnet

This is pretty normal. All they are doing is subdividing their class a down a bit its all still a class A network (first octet).

it varilable length subnet masking. It will be a very important topic in your studies.

New Member

Re: Cisco 877 IP and Subnet

Thanks

Sent from my HTC

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