Link Layer Protocol; Network Protocol - 3Com Router 3000 Series Manual

Removing the firewall-packet filter command
from the interface does not work

1.1.5. Link Layer Protocol

Symptom
North American ISDN protocol types cannot be
configured on a PRI interface.
The LMI Encapsulation type on the 3Com
routers is called Non-Standard.
Router 3000 series routers do not auto-
negotiate with the 3Com SSII Dual Speed Hub
500.
The dialer disconnect B-channel command
uses a timeslot numbering scheme.
Defining an SDLC controller address preceded
by the hexadecimal designator, '0x' results in
'Invalid Address' message.
Changing a link from MFR to MP can result in a
router reboot

1.1.6. Network Protocol

Symptom
IGMP query timer defaults to 60.
Naming inconsistency with interface and IPX
static routes.
IPX RIP entries are not aged-out at the user-
defined interval.
IPX SAP services' timer and multiplier value
configurations are ignored.
NAT translates the global interface IP address
as well as all internal addresses. Thus, all
traffic going out of the NAT interface is
translated, including all local interface IP
addresses on the router.
RTP header compression is not fully supported
in this release.
Load balancing does not work through
recursive lookup.
3Com Router Release Notes for V1.20
The command must be completed with the
"inbound" or "outbound" keyword
DSS1 is the only supported protocol type.
If the frame relay peer is set to LMI, set the
Local Interface to Non-Standard.
Adjust the speed and duplex manually on both
devices so they match. Disable negotiation
mode.
The dialer disconnect B-channel command
takes a timeslot as an argument. Timeslot 16 is
the D channel; the timeslot numbering for the
B-channels is 1-15 and 17-31. To disconnect
B-channel 30 the user must specify timeslot 31.
Omit the hexadecimal '0x' when defining an
SDLC address.
When changing from an MFR configuration to a
MP configuration, shut down all the physical
interfaces used by the Virtual-Template.
Save the configuration, reboot the router and
undo shutdown on the physical interfaces.
Set the query timer, manually, to 125.
When configuring a static route for a network
that begins with an alpha character, preface
the network with 0x.
The IPX RIP table entries are removed from
the table if updates for those entries are not
received within the default interval of 180
seconds. This value is based upon a default
RIP update timer of 60 seconds and a default
multiplier of 3.
IPX SAP updates are received once a minute
regardless of configuration settings.
Any IP address (especially that of the global
NAT interface) that was not intended for NAT,
should be denied translation in an access list.
Deny the NAT outbound interface address with
an Access List.
Refer to 3Com Knowledgebase solution
3KB9241 for more details.
RTP header compression is not fully supported
in this release.
Use MP or OSPF to support load balancing.
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Solution
Solution