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Subnet Solution

I am fairly new to the Cisco world but have a few questions. If I wanted to create 8 subnets would that mean I need 8 interfaces on my router(s)? I have a 2600 with two Ethernet interfaces but wanted to know if that is even suggested to create that many networks on one router if possible at all. I am just curious, any hardware suggestion or models recommended?
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rolyohh
Asked:
rolyohh
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1 Solution
 
pilson66Commented:
you need to use subinterfaces and VLANs

conf t
int f0/0.10
encapsulation dot1q 10
int f0/0.20
encapsulation dot1q 20
...
int f0/0.80
encapsulation dot1q 80

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rolyohhAuthor Commented:
Would you take the one interface that has multiple subinterfaces > connect to a switch and use this switch to connect to all of the other switches?

1. Router 1 ethernet port with subinterfaces
2. Switch with 8 VLANs 1 for each ethernet port
3. Each VLAN port connected to another switch?

Sorry if I am jumping way ahead of myself.
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pilson66Commented:
Yes, you`re right.
And switch port, connected to cisco router, must be in a TRUNK mode.
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pilson66Commented:
part of config for cisco switch, not 100% correct, but the general meaning of this

conf t
vlan 10
name bla-bla-bla
...
vlan 80
name bla-bla-bla

int f0/0
switchport mode trunk
int f0/1
switchport mode access
switchport access vlan 10
...
int f0/8
switchport mode access
switchport access vlan 80
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rolyohhAuthor Commented:
Thanks. This was just something I wanted to know, probably wont jump into it anytime soon but wanted to make sure I could answer this question as I assumed that each subnet needed to be on its own physical interface. So if I wanted to create 16 networks I would need a fat router haha.
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