BigIron RX Series Configuration Guide
183
53-1001810-01
Configuring ARP parameters
7
NOTE
An ARP request from one subnet can reach another subnet when both subnets are on the same
physical segment (Ethernet cable), since MAC-layer broadcasts reach all the devices on the
segment.
Proxy ARP is disabled by default.
To enable IP proxy ARP, enter the following command.
BigIron RX
(config)# ip proxy-arp
To again disable IP proxy ARP, enter the following command.
BigIron RX
(config)# no ip proxy-arp
Syntax: [no] ip proxy-arp
Creating static ARP entries
The device has a static ARP table, in addition to the regular ARP cache. The static ARP table
contains entries that you configure.
Static entries are useful in cases where you want to pre-configure an entry for a device that is not
connected to the device, or you want to prevent a particular entry from aging out. The software
removes a dynamic entry from the ARP cache if the ARP aging interval expires before the entry is
refreshed. Static entries do not age out, regardless of whether the
Brocade
device receives an ARP
request from the device that has the entry’s address.
You can increase the number of configurable static ARP entries. Refer to
“Changing the maximum
number of entries the static ARP table can hold”
on page 184.
To display the ARP cache and static ARP table, see the following:
•
To display the ARP table, refer to
“Displaying the ARP cache”
on page 217.
•
To display the static ARP table, refer to
“Displaying the static ARP table”
on page 218.
To create a static ARP entry for a static MAC entry, enter a command such as the following.
BigIron RX
(config)# arp 1 192.53.4.2 1245.7654.2348 e 1/2
The command adds a static ARP entry that maps IP address 192.53.4.2 to MAC address
1245.7654.2348. The entry is for a MAC address connected to port 1/2 of the device.
Syntax: arp
<ip-addr> <mac-addr>
ethernet
<slot/port>
The
<ip-addr>
command specifies the IP address of the device that has the MAC address of the
entry.
The
<mac-addr>
parameter specifies the MAC address of the entry.
The ethernet
<slot/port>
command specifies the port number attached to the device that has the
MAC address of the entry.
The arp command allows you to specify only one port number. To create a static ARP entry for a
static MAC entry that is associated with multiple ports, specify the first (lowest-numbered) port
associated with the static MAC entry.
Summary of Contents for Brocade DCX
Page 40: ...xl BigIron RX Series Configuration Guide 53 1001810 01 ...
Page 72: ...lxxii BigIron RX Series Configuration Guide 53 1001810 01 ...
Page 88: ...16 BigIron RX Series Configuration Guide 53 1001810 01 Searching and filtering output 1 ...
Page 300: ...228 BigIron RX Series Configuration Guide 53 1001810 01 Displaying IP information 7 ...
Page 318: ...246 BigIron RX Series Configuration Guide 53 1001810 01 Deploying a LAG 8 ...
Page 418: ...346 BigIron RX Series Configuration Guide 53 1001810 01 SuperSpan 12 ...
Page 482: ...410 BigIron RX Series Configuration Guide 53 1001810 01 MRP CLI example 14 ...
Page 506: ...434 BigIron RX Series Configuration Guide 53 1001810 01 Displaying VSRP information 15 ...
Page 582: ...510 BigIron RX Series Configuration Guide 53 1001810 01 Viewing Layer 2 ACLs 20 ...
Page 634: ...562 BigIron RX Series Configuration Guide 53 1001810 01 Troubleshooting ACLs 21 ...
Page 642: ...570 BigIron RX Series Configuration Guide 53 1001810 01 Trunk formation 22 ...
Page 746: ...674 BigIron RX Series Configuration Guide 53 1001810 01 Displaying RIP filters 24 ...
Page 808: ...736 BigIron RX Series Configuration Guide 53 1001810 01 Displaying OSPF information 25 ...
Page 938: ...866 BigIron RX Series Configuration Guide 53 1001810 01 Displaying MBGP information 27 ...
Page 950: ...878 BigIron RX Series Configuration Guide 53 1001810 01 Using secure copy 28 ...
Page 988: ...916 BigIron RX Series Configuration Guide 53 1001810 01 Clearing IS IS information 29 ...
Page 1054: ...982 BigIron RX Series Configuration Guide 53 1001810 01 Sample 802 1x configurations 33 ...
Page 1108: ...1036 BigIron RX Series Configuration Guide 53 1001810 01 sFlow 39 ...
Page 1190: ...1118 BigIron RX Series Configuration Guide 53 1001810 01 Displaying RIPng information 44 ...
Page 1270: ...1198 BigIron RX Series Configuration Guide 53 1001810 01 Displaying ACLs 47 ...
Page 1310: ...1238 BigIron RX Series Configuration Guide 53 1001810 01 Displaying OSPFv3 information 48 ...
Page 1382: ...1310 BigIron RX Series Configuration Guide 53 1001810 01 Commands That Require a Reload D ...
Page 1435: ...BigIron RX Series Configuration Guide 1363 53 1001810 01 VSRP E ...
Page 1436: ...1364 BigIron RX Series Configuration Guide 53 1001810 01 VSRP E ...