H3C Technologies H3C SecBlade LB Cards - Manual (Page 80)

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Specifying a VPN for the HWTACACS scheme
You can specify a VPN for all the AAA servers in an HWTACACS scheme. However, the VPN has a
lower priority than those configured for individual HWTACACS servers.
To specify a VPN for an HWTACACS scheme:
Step Command
1. Enter system view. system-view
2. Enter HWTACACS scheme view. hwtacacs scheme hwtacacs-scheme-name
3. Specify a VPN for the HWTACACS scheme. vpn-instance vpn-instance-name
Setting the username format and traffic statistics units
A username is usually in the format userid@isp-name, where isp-name represents the user's ISP domain
name. By default, the ISP domain name is included in a username; however, some HWTACACS servers
do not recognize usernames that contain the ISP domain names. In this case, you can configure the
device to remove the domain name from each username to be sent.
The device periodically sends accounting updates to HWTACACS accounting servers to report the traffic
statistics of online users. For normal and accurate traffic statistics, make sure that the unit for data flows
and that for packets on the device are consistent with those configured on the HWTACACS servers.
To set the username format and the traffic statistics units for an HWTACACS scheme:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter HWTACACS scheme
view.
hwtacacs scheme
hwtacacs-scheme-name
N/A
3. Set the format of usernames
sent to the HWTACACS
servers.
user-name-format { keep-original |
with-domain | without-domain }
Optional.
By default, the ISP domain name
is included in a username.
4. Specify the unit for data flows
or packets sent to the
HWTACACS servers.
data-flow-format { data { byte |
giga-byte | kilo-byte | mega-byte }
| packet { giga-packet | kilo-packet
| mega-packet | one-packet } }*
Optional.
The default unit is byte for data
flows and one-packet for data
packets.
If an HWTACACS server does not support a username that carries the domain name, configure the
device to remove the domain name before sending the username to the server.
For level switching authentication, user-name-format keep-original and user-name-format
without-domain commands all produce the same results: they make sure that usernames sent to the
HWTACACS server carry no ISP domain name.
Specifying the source IP address for outgoing HWTACACS packets
The source IP address of HWTACACS packets that a NAS sends must match the IP address of the NAS
configured on the HWTACACS server. An HWTACACS server identifies a NAS by IP address. Upon
receiving an HWTACACS packet, an HWTACACS server checks whether the source IP address of the
packet is the IP address of any managed NAS. If yes, the server processes the packet. If not, the server
drops the packet.