atmarp - Creates ATM Logical IP Subnet (LIS) interface,
configures the ATM Address Resolution Protocol (ARP) module,
and configures and displays the ATM ARP table
/usr/sbin/atmarp hostname
/usr/sbin/atmarp -a
/usr/sbin/atmarp -c lis=lis_number driver=driver_name
[atm_address]
/usr/sbin/atmarp -d [lis=lis_number] hostname
/usr/sbin/atmarp -h [lis=lis_number]
/usr/sbin/atmarp -h lis=lis_number server
/usr/sbin/atmarp -h lis=lis_number client atm_address
ip_address [retry_time]
/usr/sbin/atmarp -r lis=lis_number
/usr/sbin/atmarp -s [lis=lis_number] atm_address
ip_address [permanent]
/usr/sbin/atmarp -v [lis=lis_number] +|-vc vpi_number
vci_number hostname
Displays all entries in the ATM Address Resolution Protocol
(ARP) table. Creates a Logical IP Subnet (LIS) interface
on the driver specified. If you do not specify an
ATM address, the IP convergence module selects an ATM
address for the LIS interface.
If the local host is connected to an ATM switch
that does not support the Interim Local Management
Interface (ILMI) protocol, and you are using SVCs,
you must provide atm_address. Deletes the entry
for hostname from the ATM ARP table.
You can also specify a LIS number. If you do not
specify a LIS number, the command uses LIS 0 (the
default), and deletes all entries with the IP
address of hostname. Displays the configuration
information for the local host on the logical IP
subnet (LIS). A host on the LIS can be either an
ARP server or client.
You can also specify a LIS number. If you do not
specify a LIS number, the configuration information
for all LISs is displayed. Configures the local
host on the specified LIS as an ATM ARP server.
You must specify an LIS number. Configures the
local host on the specified LIS as an ATM ARP
client. You must specify the following arguments:
Specifies the LIS number you want to configure.
Specifies the ATM End System Address (AESA) of the
ATM ARP server. This can be either the host name as
it appears in the /etc/atmhosts file or a 40-digit
AESA with selector byte. Specifies the IP address
of the ATM ARP server. This can be either the host
name as it appears in the /etc/hosts file or a
numeric IP address in standard dot notation. If
the ATM ARP server does not have an IP address,
enter the value 0.0.0.0.
You can also specify a retry_time value. If the
client cannot establish a connection with a server,
this is the amount of time (in seconds) that the
client waits before trying to establish a connection.
If you do not specify a retry_time value, the
client randomly selects a value between 0 and 60
seconds. Reads the local ATM address, IP address,
and ATM ARP configuration type on the specified
LIS. You must specify an LIS number. Creates an
atm_address entry for ip_address in the ATM ARP
table. You must specify the following arguments:
Specifies the ATM address for the entry. This can
be either the host name as it appears in the
/etc/atmhosts file or a 40-digit AESA with selector
byte. For PVCs, enter the PVC host name or 40 hexadecimal
zeros (0). See atmhosts(4) for more
information. Specifies the IP address for the corresponding
ATM address. This can be either the
host name as it appears in the /etc/hosts file or a
numeric IP address in standard dot notation.
You can also specify a LIS number. If you do not
specify a LIS number, the entry applies to LIS 0.
You can also specify the permanent argument. This
creates an ATM ARP table entry that is not subject
to the RFC 1577 aging rules. Creates (+) or
removes (-) an association between an established
virtual circuit (VC), either switched virtual circuit
(SVC) or permanent virtual circuit (PVC), and
a remote IP entity that does not support classical
IP. You must specify the following arguments:
Specifies the virtual path identifier (VPI) for the
virtual circuit. Specifies the virtual channel
identifier (VCI) for the virtual circuit. Specifies
the hostname assigned to the ARP entry.
You can also specify a LIS number. If you do not
specify a LIS number, the association applies to
LIS 0.
In order to associate an established VC with a
remote IP entity, the ATM address entry must be
marked as permanent, by using the atmarp -s command,
and there must be an InARP request pending on
that VC. See the Description section for information
on InARP requests.
Specifying the atmarp command with only the hostname
parameter displays the ARP entry for hostname.
The atmarp command creates a logical IP subnet (LIS)
interface over the ATM network. You can create multiple
LIS interfaces on an ATM driver. Hosts connected to ATM
communicate directly to other hosts within the same LIS.
All members of a LIS have the same IP network/subnet number
and address mask. Communication to hosts outside of
the local LIS is provided via an IP router. For more
information on ATM LIS see RFC1577.
If you do not specify an ATM address when creating a LIS
interface, the IP convergence module selects an End System
Identifier (ESI) and a selector byte, which it registers
with the ATM switch.
If your local switch does not support dynamic address registration,
you can specify an ATM address. In this case,
the ATM address should be a full 20-byte ATM address
(19-byte prefix and ESI) already registered with the
switch and an unused selector byte. To create and register
an ESI uses atmconfig command.
The atmarp command also configures the ATM ARP module to
operate in either client or server mode.
In client mode, ATM ARP makes a connection to the ATM ARP
server and sends all ARP resolution requests to the
server. To configure ATM ARP clients, you must supply both
the ATM address and IP address of the ATM ARP server.
This is the full 20-byte ATM End System Address (AESA).
Both these values are required for the client to contact
the server.
In server mode, ATM ARP accepts connections from all ATM
ARP clients on the LIS and determines both their ATM and
IP addresses to build a table that is used to map IP
addresses to ATM addresses. When functioning as a server,
ATM ARP will accept ARP resolution requests from all
clients on the LIS. See RFC 1577 for a description of the
function of the ARP server. To configure an ATM ARP
server, you only need to inform the ATM ARP module that it
will be functioning as a server. No other data is
required. As a result of server configuration, the
server's full 20-byte AESA is displayed. Hosts on the LIS
use this address when the are configured as ATM ARP
clients.
The atmarp command also enables you to read the local ATM
address, IP address, and the ATM ARP configuration type
(ATM ARP server or ATM ARP client) on a specified LIS.
In addition, the atmarp command enables you to create and
delete entries in the ATM ARP table, display entries in
the ATM ARP table, toggle the permanent option for
entries, to display the local host's ATM configuration
status, and to create and remove an association between an
established VC and a remote IP entity that does not support
classical IP.
In creating an association between an established VC (PVC
or SVC) and a remote IP entity, the ATM ARP entry must be
marked as permanent and there must be an InARP request
pending on that VC. An InARP request on a VC is considered
pending in the following cases: A system administrator
establishes a PVC and the local host issues an InARP
request on the PVC to establish the identity of the remote
node. A remote system establishes an SVC for use with IP.
The local host issues an InARP request on the SVC to
determine the identity on the remote end of the SVC.
In either case, if the remote system does not support RFC
1577, the local host never receives a response to the
InARP request, leaving the request pending.
To create LIS 0 on driver lta0, enter: # atmarp -c lis=0
driver=lta0 To display the local host's ATM ARP configuration
information on LIS 0, enter: # atmarp -h lis=0 Host
has been configured as a CLIENT on lis0. Server ATM
address: arpserver \
(3900000000000000000000000088002b802e5000) Server IP
address: atm3 (130.142.128.3) To configure the local host
on LIS 0 as a client using host3 as a server and specify a
retry time of 32 seconds, enter: # atmarp -h lis=0 client
host3 host3 32 This host is now a CLIENT on lis0. Connect
retry value is : 32 seconds To read the local ATM address,
IP address and ATM ARP configuration type on LIS 0, enter:
# atmarp -r lis=0 LIS 0 has been configured as an ARP
client IP address: 130.142.128.20 ATM address:
3900000000000000000000000088002b8020d000 To display the
ATM ARP entry for host central, enter: # atmarp central IP
Address : central (130.142.128.4) ATM Address :
3900000000000000000000000088002b2235b000 Flags :
Complete VCs : vpi vci VC Type
--- --- -------
0 34 SVC To display the entire ATM
ARP table, enter: # atmarp -a
Number of entries : 3
IP Address : office1 (130.142.128.8) ATM Address :
3900000000000000000000000088002b802e5001 Flags :
Complete VCs : vpi vci VC Type
--- --- -------
0 35 SVC
IP Address : central (130.142.128.4) ATM Address :
3900000000000000000000000088002b2235b000 Flags :
Complete Stale VCs : vpi vci VC Type
--- --- -------
0 34 SVC
IP Address : office2 (130.142.128.2) ATM Address :
office2 (3900000000000000000000000088002b33aab000) Flags :
Complete VCs : vpi vci VC Type
--- --- -------
0 33 SVC To display the local
host's ATM ARP configuration information, enter: # atmarp
-h Host has been configured as a CLIENT on lis0. Server
ATM address: arpserver \
(3900000000000000000000000008002b2241703a) Server IP
address: atm3 (130.142.128.3) To create an ATM ARP table
entry and enable the permanent option, enter: # atmarp -s
3900000000000000000000000088002b33aab000 \ 130.142.128.2
permanent IP Address : host1 (130.142.128.2) ATM Address
: host1 (3900000000000000000000000088002b33aab000) Flags
: Complete Permanent VCs : None. To associate
a PVC with a VPI of 0 and a VCI of 345 with the
entry for host1, enter: # atmarp -v +vc 0 345 host1 IP
Address : host1 (130.142.128.2) ATM Address : host1
(3900000000000000000000000088002b33aab000) Flags :
Complete Permanent VCs : vpi vci VC Type
--- --- -------
0 345 PVC
Files: atmhosts(4), hosts(4)
atmarp(8)
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