Configure The System To Be A Dhcp Server; Implementation Information; Configuration Tasks - Dell Force10 S4810P Configuration Manual

High-density, 1ru 48-port 10gbe switch

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The Dell Force10 implementation of DHCP is based on RFC 2131 and RFC 3046.

IP Source Address Validation is a sub-feature of DHCP Snooping; FTOS uses ACLs internally to

implement this feature and as such, you cannot apply ACLs to an interface which has IP Source

Address Validation. If you configure IP Source Address Validation on a member port of a VLAN and

then attempt to apply a access list to the VLAN, FTOS displays the first line in

apply an ACL to a VLAN and then attempt enable IP Source Address Validation on one of its member

ports, FTOS displays the second line in

Message 1 DHCP Snooping with VLAN ACL Compatibility Error

% Error: Vlan member has access-list configured.

% Error: Vlan has an access-list configured.

Note: If DHCP Snooping is enabled globally and any L2 port is configured, any IP ACL,MAC ACL, or

DHCP Source-Address validation ACL won't block DHCP packets .

FTOS provides 40K entries that can be divided between leased addresses and excluded addresses. By

extension, the maximum number of pools you can configure depends on the on the subnet mask that

you give to each pool. For example, if all pools were configured for a /24 mask, the total would be

40000/253 (approximately 158). If the subnet is increased, more pools can be configured. The

maximum subnet that can be configured for a single pool is /17. FTOS displays an error message for

configurations that exceed the allocated memory.

E-Series supports 16K DHCP Snooping entries across 500 VLANs.

C-Series, S-Series (S25/S50), S55, S60 and S4810 support 4K DHCP Snooping entries.

All platforms support Dynamic ARP Inspection on 16 VLANs per system. Refer to

Note: If the DHCP server is located on the ToR and the VLTi (ICL) is down due to a failed link when a VLT

node is rebooted in JumpStart mode, it will not be able to reach the DHCP server, resulting in BMP failure.

Configure the System to be a DHCP Server

Configure the System to be a Relay Agent

Configure Secure DHCP

Configure the System to be a DHCP Server

Dynamic Host Configuration Protocol (DHCP)

is supported only on platforms:

1. If you first