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TOPIC: CISCO 3550 Questions

CISCO 3550 Questions 10 years 1 month ago #26035

Hi,

I just got this 3550 (3550-48 EMI) in and I had a few questions hopefully some of you guys or gals out there can spare a few minutes and help me.

Thanks in advance!
---

I have a C-Class of IP Addresses and port 48 is my uplink port from my provider. For example, 192.168.0.1/24

1) Can I specify a port to only be able to use 8 ip addresses, for example
192.168.0.10-192.168.0.17? I want to stop users from accessing another users assigned ips.

2) Limit the bandwidth on a port, lets say port 1 only gets 15mbps, port 2 can have 25mbps.

Thanks!

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Re: CISCO 3550 Questions 10 years 1 month ago #26051

  • Chris
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vegeetz,

The 3550 is a layer 3 switch, which effectively means you can work on the network layer to perform wonders :)

Regarding your questions, if you wish to restrict specific IP addresses behind each port, you can create custom access lists and bind them to the necessary interface to get the result you need.

For example, let's say we want to restrict the workstation behind port 0/12 to ip address 10.0.0.4:


[code:1]Cat3560G(config)#access-list 100 permit ip host 10.0.0.4 any
Cat3560G(config)#interface gigabitEthernet 0/12
Cat3560G(config-if)#ip access-group 100 in[/code:1]

With the above configuration, only ip address 10.0.0.4 will be able to work on the specific interface. Traffic from the network will also be able to reach 10.0.0.4 without problems.

Regarding the bandwidth limiter, I'll have to test it to provide you with a working configuration, but I believe it can work using class maps to define the traffic and policies to which the classes are bound to. From there on, you apply the policy to the interface you wish in either outbound or inbound direction.

Hope that helps.

Cheers,

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Chris Partsenidis.
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www.Firewall.cx

Re: CISCO 3550 Questions 10 years 1 month ago #26055

Damn you are awesome.

Cat3560G(config)#access-list 100 permit ip host 10.0.0.4 any

To add more ips to port 0/12 I would just repeat the above command but with another ip?

Thanks,

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Re: CISCO 3550 Questions 10 years 1 month ago #26057

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To add more ips to port 0/12 I would just repeat the above command but with another ip?


Correct, just repeat the code using different IP addresses for each interface and you ready to go.

Cheers,

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Chris Partsenidis.
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Re: CISCO 3550 Questions 10 years 1 month ago #26058

Cool, I will check that out. Also thanks again. Can you please update me when you find out about the policy maps for the bandwidth. I would to limit both the in and out.

Thanks again Chris!

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Re: CISCO 3550 Questions 10 years 1 month ago #26094

Any luck chris on the rate limiting? Also I had another question...

I have one VLAN (example, 192.168.0.0/24) and I have one uplink so far with a gateway of 192.168.0.1. Now I get a second uplink (example, 10.10.10.14) can I mix that in with my network. Like have a computer on port 5 have all their out going traffic routed through the second uplink (10.10.10.14)?

Thanks,

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