для Cisco Cisco Packet Data Gateway (PDG)
P-GW Changes in Release 17
P-GW Enhancements for 17.0 ▀
Release Change Reference, StarOS Release 17 ▄
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This information is used by the DHCPv4 server to determine the appropriate IP Pool to assign an IP address, subnet
mask, IPv4 default router, and DNSv4 IP addresses. This is taken from the bind address of the DHCP service or the bind
address of the service that the DHCP service is associated with. Use of this address is configurable on a per-APN basis.
mask, IPv4 default router, and DNSv4 IP addresses. This is taken from the bind address of the DHCP service or the bind
address of the service that the DHCP service is associated with. Use of this address is configurable on a per-APN basis.
DHCP Client MAC Address and Client Identifier
P-GW/LMA has also been enhanced to support DHCPv4 proxy functionality to map the LLID received in the PBU
from the MAG to the Client MAC Address (chaddr), per RFC 2131 (Dynamic Host Configuration Protocol), and
Option(61) Client Identifier, per RFC 2132 (DHCP Options and BOOTP Vendor Extensions), AVPs within the
DHCPv4 Discover and Request messages to the external DHCPv4 server. This is encoded in the MAC48 format. This
functionality is enabled by a configuration command in the DHCP service configuration.
from the MAG to the Client MAC Address (chaddr), per RFC 2131 (Dynamic Host Configuration Protocol), and
Option(61) Client Identifier, per RFC 2132 (DHCP Options and BOOTP Vendor Extensions), AVPs within the
DHCPv4 Discover and Request messages to the external DHCPv4 server. This is encoded in the MAC48 format. This
functionality is enabled by a configuration command in the DHCP service configuration.
Command Changes
dhcp client-identifier
link-layer-identifer
is a new keyword in this command that enables giaddr in the DHCP proxy client messages.
The APN configuration has the ability to include which DHCP service it will be associated with.
configure
context context_name
dhcp-service service-name
dhcp client-identifier link-layer-identifier
default dhcp client-identifier
end
Notes:
By associating a different APN with a different DHCP service, and configuring a different bind address with
each DHCP service, each APN can configure its own relay agent address. The DHCP service is associated with
an APN with the existing
an APN with the existing
dhcp-service-name
command in the APN Configuration Mode and the DHCP
service will specify the bind address to be used as the giaddr.
Once the DHCP service has been associated with an APN, Client Mac Address and Client Identifier behavior
can be configured in the DHCP service configuration. When
client-identifier
is configured with
link-
layer-identifier
, the link-layer-identifier from PBU is used to populate the client-identifier value. This
configuration only applies to DHCP service associated with an LMA service. When associated with a non-
LMA service, choosing this option will cause client-identifier to be empty.
LMA service, choosing this option will cause client-identifier to be empty.
CSCuh35078 - PGW responds to Create Session Request with Mandatory IE
incorrect
Feature Changes
P-GW responds to Create Session Request with Mandator IE incorrect
Previous Behavior: Protocol layer was rejecting CS Requests with MEI IE having value as all