Brocade Communications Systems Layer 3 Routing Configuration ICX 6650 - Manual (Page 109)

Brocade ICX 6650 Layer 3 Routing Configuration Guide 91
53-1002603-01
Configuring IP parameters – Layer 2 Switches
Brocade(config)# ip ttl 25
Brocade(config)# exit
Syntax: ip ttl 1-255
DHCP Assist configuration
DHCP Assist allows a Brocade Layer 2 Switch to assist a router that is performing multi-netting on
its interfaces as part of its DHCP relay function.
DHCP Assist ensures that a DHCP server that manages multiple IP subnets can readily recognize
the requester IP subnet, even when that server is not on the client local LAN segment. The Brocade
Layer 2 Switch does so by stamping each request with its IP gateway address in the DHCP discovery
packet.
NOTE
Brocade Layer 3 Switches provide BootP/DHCP assistance by default on an individual port basis.
Refer to
“Changing the IP address used for stamping BootP and DHCP requests” on page 66.
By allowing multiple subnet DHCP requests to be sent on the same wire, you can reduce the
number of router ports required to support secondary addressing as well as reduce the number of
DHCP servers required, by allowing a server to manage multiple subnet address assignments.