HP VPN Firewall Appliances Network Management Configuration Guide
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Configuring IPv6 TCP properties
You can configure the following IPv6 TCP properties:
• synwait timer—When a SYN packet is sent, the synwait timer is triggered. If no response packet is
received before the synwait timer expires, the IPv6 TCP connection establishment fails.
• finwait timer—When the IPv6 TCP connection status is FIN_WAIT_2, the finwait timer is triggered.
If no packet is received before the finwait timer expires, the IPv6 TCP connection is terminated. If a
FIN packet is received, the IPv6 TCP connection status becomes TIME_WAIT. If non-FIN packets are
received, the finwait timer is reset upon receipt of the last non-FIN packet and the connection is
terminated after the finwait timer expires.
• Size of the IPv6 TCP sending/receiving buffer.
To configure IPv6 TCP properties:
Ste
p
Command
Remarks
1. Enter system view.
system-view N/A
2. Set the synwait timer.
tcp ipv6 timer syn-timeout wait-time
Optional.
75 seconds by default.
3. Set the finwait timer. tcp ipv6 timer fin-timeout wait-time
Optional.
675 seconds by default.
4. Set the size of the IPv6 TCP
sending/receiving buffer.
tcp ipv6 window size
Optional.
8 KB by default.
Configuring IPv6 FIB load sharing
In the IPv6 FIB load sharing mode, the device can decide how to select equal cost multi-paths (ECMP) to
forward packets. The device supports the following load sharing modes:
• Load sharing based on the HASH algorithm—An algorithm based on the source IPv6 address and
destination IPv6 address is adopted to select an ECMP route to forward packets.
• Load sharing based on polling—Each ECMP route is used in turn to forward packets.
To configure the IPv6 FIB load sharing:
Ste
p
Command
Remarks
1. Enter system view.
system-view N/A
2. Configure the IPv6
FIB load sharing
mode.
• Configure load sharing based on the hash
algorithm:
ipv6 fib-loadbalance-type hash-based
• Configure load sharing based on polling:
undo ipv6 fib-loadbalance-type hash-based
Optional.
By default, load sharing
based on polling is adopted
and ECMP routes are used in
turn to forward packets.
Controlling sending ICMPv6 packets
This section describes how to configure ICMPv6 packet sending.