DHCP snooping – IT Blog

Configuring DHCP Snooping on Allied Telesis

In this article, I will give an example of configuring DHCP Snooping on Allied Telesis switches

Configuring DHCP Snooping on Edge-core

Let me give you an example of setting up DHCP Snooping on Edge-core switches, for the test I’ll take the ES3526XA model.

Configuring DHCP Snooping on MikroTik

I will give an example of setting up DHCP Snooping on MikroTik (RouterOS) to block third-party DHCP servers:

Configuring DHCP snooping on BDCOM P3310

For example, I will configure DHCP snooping on the BDCOM P3310C EPON OLT.

First, let’s connect to the device and go to the configuration mode:
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Blocking DHCP servers on FoxGate switches

For example, I’ll take a FoxGate S6224-S4 switch; on other models, the configuration is almost the same.

First, enable the dhcp snooping function:

ip dhcp snooping enable

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Block third-party DHCP servers on the Huawei Quidway S2300 (DHCP Snooping)

I will give an example of how on the Huawei Quidway S2300 switch (using the S2326TP-EI as an example) to allow receiving DHCP responses from the uplink port and prohibiting client responses.

Blocking third-party DHCP on Cisco via DHCP Snooping

On the test, I configure DHCP Snooping on the Cisco Catalyst 6509-E to block third-party DHCP servers, on the other Cisco switches, the configuration is basically the same.

After connecting to the device immediately go to the configuration mode:

enable
configure

Continue reading “Blocking third-party DHCP on Cisco via DHCP Snooping”