Brocade Communications Systems Layer 3 Routing Configuration ICX 6650 - Manual (Page 4)

iv Brocade ICX 6650 Layer 3 Routing Configuration Guide
53-1002603-01
Configuring IP parameters – Layer 3 Switches . . . . . . . . . . . . . . . . . 19
Configuring IP addresses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Configuring 31-bit subnet masks on
point-to-point networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Configuring DNS resolver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Configuring packet parameters . . . . . . . . . . . . . . . . . . . . . . . . .28
Changing the router ID. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Specifying a single source interface for specified
packet types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
ARP parameter configuration . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Configuring forwarding parameters . . . . . . . . . . . . . . . . . . . . . .40
Disabling ICMP messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Disabling ICMP redirect messages . . . . . . . . . . . . . . . . . . . . . . .44
Static routes configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Configuring a default network route . . . . . . . . . . . . . . . . . . . . . .54
Configuring IP load sharing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
ICMP Router Discovery Protocol configuration . . . . . . . . . . . . .58
IRDP parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Reverse Address Resolution Protocol configuration . . . . . . . . . 61
Configuring UDP broadcast and IP helper parameters . . . . . . .62
BootP and DHCP relay parameter configuration . . . . . . . . . . . .65
DHCP Server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
Displaying DHCP Server information . . . . . . . . . . . . . . . . . . . . .78
DHCP Client-Based Auto-Configuration and flash
image update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
Configuring IP parameters – Layer 2 Switches . . . . . . . . . . . . . . . . .88
Configuring the management IP address and specifying
the default gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
Configuring Domain Name Server resolver . . . . . . . . . . . . . . . .89
Changing the TTL threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
DHCP Assist configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
IPv4 point-to-point GRE tunnels . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
IPv4 GRE tunnel overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
GRE packet structure and header format . . . . . . . . . . . . . . . . .95
Path MTU Discovery (PMTUD) support . . . . . . . . . . . . . . . . . . . .96
Configuration considerations for PMTUD support . . . . . . . . . . . 97
Support for IPv4 multicast routing over GRE tunnels . . . . . . . . 97
GRE support with other features . . . . . . . . . . . . . . . . . . . . . . . .98
Configuration considerations for GRE IP tunnels . . . . . . . . . . .98
Configuration tasks for GRE tunnels . . . . . . . . . . . . . . . . . . . .100
Point-to-point GRE tunnel configuration example . . . . . . . . . .107
Displaying GRE tunneling information . . . . . . . . . . . . . . . . . . .108
Clearing GRE statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112
Displaying IP configuration information and statistics . . . . . . . . . .113
Changing the network mask display to prefix format . . . . . . .113
Displaying IP information – Layer 3 Switches . . . . . . . . . . . . .113
Displaying IP information – Layer 2 Switches . . . . . . . . . . . . .128