HP VPN Firewall Appliances Access Control Configuration Guide

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Configuration guidelines
• You cannot enable portal authentication on a Layer 3 interface added to an aggregation group,
nor can you add a portal-enabled Layer 3 interface to an aggregation group.
• The destination port number that the access device uses for sending unsolicited packets to the portal
server must be the same as the port number that the remote portal server actually uses.
• The portal server and its parameters can be deleted or modified only when the portal server is not
referenced by any interface.
• Cross-subnet authentication mode (portal server server-name method layer3) does not require
Layer 3 forwarding devices between the access device and the authentication clients. However, if
Layer 3 forwarding devices exist between the authentication client and the access device, you must
select the cross-subnet portal authentication mode.
• In re-DHCP authentication mode, a client can use a public IP address to send packets before
passing portal authentication. However, responses to the packets are restricted.
Configuration procedure
To enable Layer 3 portal authentication:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter interface view.
interface interface-type
interface-number
The interface must be a Layer 3
Ethernet interface.
3. Enable Layer 3 portal
authentication on the interface.
portal server server-name method
{ direct | layer3 | redhcp }
Not enabled by default.
Controlling access of portal users
Configuring an IPv4 portal-free rule
A portal-free rule allows specified users to access specified external websites without portal
authentication.
The matching items for a portal-free rule include the source and destination IP address, source MAC
address, inbound interface, and VLAN. Packets matching a portal-free rule will not trigger portal
authentication, so users sending the packets can directly access the specified external websites.
Configuration guidelines
• If you specify both a VLAN and an interface in a portal-free rule, the interface must belong to the
VLAN. Otherwise, the rule does not take effect.
• You cannot configure two or more portal-free rules with the same filtering criteria. Otherwise, the
system prompts that the rule already exists.
• Regardless of whether portal authentication is enabled or not, you can only add or remove a
portal-free rule. You cannot modify it.