Motorola Netopia-3000 Router Manual PDF (Setup & Configuration Guide)

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256

set ip ip-ppp [

vccn

] rip-send { off | v1 | v2 | v1-compat | v2-MD5 }

Speciﬁes whether the Netopia Gateway unit should use Routing Information Protocol (RIP)

broadcasts to advertise its routing tables to routers on the other side of the PPP link. An

extension of the original Routing Information Protocol (RIP-1), RIP Version 2 (RIP-2)

expands the amount of useful information in the packets. While RIP-1 and RIP-2 share the

same basic algorithms, RIP-2 supports several new features. For example, inclusion of

subnet masks in RIP packets and implementation of multicasting instead of broadcasting.

This last feature reduces the load on hosts which do not support routing protocols. RIP-2

with MD5 authentication is an extension of RIP-2 that increases security by requiring an

authentication key when routes are advertised.

This command is only available when address mapping for the speciﬁed virtual circuit is

turned “off”.

If you specify

v2-MD5

, you must also specify a

rip-send-key

. Keys are ASCII strings with a

maximum of 31 characters, and must match the other router(s) keys for proper operation

of MD5 support.

set ip ip-ppp [

vccn

] rip-receive { off | v1 | v2 | v1-compat | v2-MD5 }

Speciﬁes whether the Netopia Gateway should use Routing Information Protocol (RIP)

broadcasts to update its routing tables with information received from other routers on the

other side of the PPP link.

If you specify

v2-MD5

, you must also specify a

rip-receive-key

. Keys are ASCII strings

with a maximum of 31 characters, and must match the other router(s) keys for proper oper-

ation of MD5 support.

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257

CONFIG Commands

Static ARP Settings

Your Netopia Gateway maintains a dynamic Address Resolution Protocol (ARP) table to map

IP addresses to Ethernet (MAC) addresses. Your Netopia Gateway populates this ARP table

dynamically, by retrieving IP address/MAC address pairs only when it needs them. Option-

ally, you can deﬁne static ARP entries to map IP addresses to their corresponding Ethernet

MAC addresses. Unlike dynamic ARP table entries, static ARP table entries do not time

out.

You can conﬁgure as many as 16 static ARP table entries for a Netopia Gateway. Use the

following commands to add static ARP entries to the Netopia Gateway static ARP table:

set ip static-arp

ip-address

ip_address

Speciﬁes the IP address for the static ARP entry. Enter an IP address in the

ip_address

argument in dotted decimal format. The

ip_address

argument cannot be 0.0.0.0.

set ip static-arp

ip-address

ip_address

hardware-address

MAC_address

Speciﬁes the Ethernet hardware address for the static ARP entry. Enter an Ethernet hard-

ware address in the

MAC_address

argument in

nn.nn.nn.nn.nn.nn

(hexadecimal) for-

mat.

IGMP Forwarding

set ip igmp-forwarding [ off | on ]

Turns IP IGMP forwarding off or on. The default is off.

IPsec Passthrough

set ip ipsec-passthrough [ off | on ]

Turns IPsec client passthrough off or on. The default is on.

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258

IP Prioritization

set ip prioritize [ off | on ]

Allows you to support trafﬁc that has the TOS bit set. This defaults to

off

.

Differentiated Services (DiffServ)

The commands in this section are supported beginning with Firmware Version 7.4.2.

set diffserv option [ off | on ]

Turns the DiffServ option

off

(default) or

on

.

on

enables the service and IP TOS bits are

used, even if no ﬂows are deﬁned. Consequently, if the end-point nodes provide TOS set-

tings from an application that can be interpreted as one of the supported states, the Gate-

way will handle it as if it actively marked the TOS ﬁeld itself.

☛

NOTE:

The Gateway itself will not override TOS bit settings made by the endpoints.

Support for source-provided IP TOS priorities within the Gateway is achieved

simply by turning the DiffServe option “on” and by setting the lohi-asymmetry

to adjust the behavior of the Gateway’s internal queues.

set diffserv lohi-ratio [ 60 - 100 percent ]

Sets a percentage between 60 and 100 used to regulate the level of packets allowed to be

pending in the low priority queue. The default is 92. It can be used in some degree to

adjust the relative throughput bandwidth for low- versus high-priority trafﬁc.

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259

CONFIG Commands

set diffserv custom-ﬂows name

name

protocol [ TCP | UDP | ICMP | other ]

direction [ outbound | inbound | both ]

start-port [ 0 - 49151 ]

end-port [ 0 - 49151 ]

inside-ip

inside-ip-addr

inside-ip-mask

inside-ip-netmask

outside-ip

outside-ip-addr

outside-ip-mask

outside-ip-netmask

qos [ off | assure | expedite ]

Deﬁnes or edits a custom ﬂow. Select a

name

for the custom-ﬂow from the

set

command.

The CLI will step into the newly-named or previously-deﬁned ﬂow for editing.

•

protocol

– Allows you to choose the IP protocol for the stream:

TCP

,

UDP

,

ICMP

, or

other

.

other

is appropriate for setting up ﬂows on protocols with non-standard port deﬁnitions,

for example, IPSEC or PPTP. If you select

other

, an additional ﬁeld,

numbered-proto-

col

will appear with a range of 0–255. Choose the protocol number from this ﬁeld.

•

direction

– Allows you to choose whether to apply the marking and gateway queue

behavior for inbound packets, outbound packets, or to both. If the Gateway is used as

an “edge” gateway, its more important function is to mark the packets for high-priority

streams in the outbound direction.

•

start-port

/

end-port

– Allows you to specify a range of ports to check for a particular

ﬂow, if the protocol selection is TCP or UDP.

•

inside-ip/mask

– If you want packets originating from a certain LAN IP address to be

marked, enter the IP address and subnet mask here. If you leave the address equal to

zero, this check is ignored for outbound packets. The check is always ignored for

inbound packets. The DiffServe queuing function must be applied ahead of NAT; and,

before NAT re-maps the inbound packets, all inbound packets are destined for the Gate-

way's WAN IP address.

•

outside-ip/mask

– If you want packets destined for and originating from a certain WAN

IP address to be marked, enter this address and subnet mask here. If you leave the

address equal to zero, the outside address check is ignored. For outbound ﬂows, the

outside address is the destination IP address for the packets. For inbound packets, the

outside address is the source IP address for the packets.

Note:

When setting the Inside/Outside IP Address/Netmask settings, note that a netmask

value can be used to conﬁgure for a network rather than a single IP address.

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260

•

qos

– Allows you to specify the Quality of Service for the ﬂow:

off

,

assure

, or

expedite

.

These are used both to mark the IP TOS byte and to distribute packets into the queues

as if they were marked by the source.

SIP Passthrough

set ip sip-passthrough [ on | off ]

Turns Session Initiation Protocol application layer gateway client passthrough on or off.

The default is

on

.

Session Initiation Protocol, is a signaling protocol for Internet conferencing, telephony,

presence, events notiﬁcation and instant messaging.

Static Route Settings

A static route identiﬁes a manually conﬁgured pathway to a remote network. Unlike

dynamic routes, which are acquired and conﬁrmed periodically from other routers, static

routes do not time out. Consequently, static routes are useful when working with PPP,

since an intermittent PPP link may make maintenance of dynamic routes problematic.

You can conﬁgure as many as 32 static IP routes for a Netopia Gateway. Use the following

commands to maintain static routes to the Netopia Gateway routing table:

set ip static-routes

destination-network

net_address

Speciﬁes the network address for the static route. Enter a network address in the

net_address

argument in dotted decimal format. The

net_address

argument cannot

be 0.0.0.0.

set ip static-routes

destination-network

net_address

netmask

Speciﬁes the subnet mask for the IP network at the other end of the static route. Enter the

netmask

argument in dotted decimal format. The subnet mask associated with the desti-

nation network must represent the same network class (A, B, or C) or a lower class (such

as a class C subnet mask for class B network number) to be valid.

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