Filter
Top Products
Routing Commands
254
ProSafe M4100 and M7100 Managed Switches
ip vrrp <vrid> accept-mode
This command is used to allow a router to respond to ICMP Echo Requests sent to an
address on a VRRP virtual router. VRRP supports responding to pings, but does not allow the
VRRP Master to accept other types of packets. A new configuration option controls whether
the router responds to Echo Requests sent to a VRRP IP address.
The VRRP Master responds to both fragmented and unfragmented ICMP Echo Request
packets.
The VRRP Master responds to Echo Requests sent to the virtual router's primary
address or any of its secondary addresses.
Ping to a VRRP IP address only works from the host side (where the VRRP router is
configured).
There is no value in pinging to the VRRP IP from another interface because
packet flow from the network to the host does not involve VRRP. This is used only to
troubleshoot a connectivity problem for traffic originating on the VRRP protected LAN.
Members of the virtual router who are in backup state discard ping packets destined to VRRP
address(es), just as they discard any Ethernet frame sent to a VRRP MAC address. When
the VRRP master responds with an Echo Reply
, the source IPv4 address is the VRRP
address and source MAC address is the virtual router's MAC address.
There is a separate command "ip icmp echo-reply" that controls whether the router responds
to ICMP Echo Requests. When Echo Replies are disabled using that command, the VRRP
master does not respond to Echo Requests, even if this new option is enabled.
Default
Format ip vrrp <vrid> accept-mode
Mode
no ip vrrp vrid accept-mode
This command is used to allow a router to respond to ICMP Echo Requests sent to an
address on a VRRP virtual router.
Format no ip vrrp <vrid> accept-mode
Mode
show ip vrrp interface stats
This command displays the statistical information about each virtual router configured on the
switch.
Format show ip vrrp interface stats <slot/port> <vrid>
Modes
• Privileged EXEC
• User EXEC
disabled
Interface Config
Interface Config