To configure proxy ARP, you can configure the following:
a prefix list in the config>router>policy-options>prefix-list context
a route policy statement in the config>router>policy-options>policy-statement context and apply the specified prefix list
In the policy statement entry>to context, specify the host source addresses for which ARP requests can or cannot be forwarded to non-local networks, depending on the specified action.
In the policy statement entry>from context, specify network prefixes that ARP requests will or will not be forwarded to depending on the action if a match is found. See the 7210 SAS-Mxp, R6, R12, S, Sx, T Routing Protocols Guide for more information about route policies.
apply the policy statement to the proxy-arp configuration in the config>router>interface context
config>router# policy-options
begin
commit
prefix-list name
prefix ip-prefix/mask [exact | longer | through
length | prefix-length-range length1-length2]
Use the following syntax to configure the policy statement specified in the proxy-arp-policy policy-statement command.
config>router# policy-options
begin
commit
policy-statement name
default-action {accept | next-entry | next-policy | reject}
entry entry-id
action {accept | next-entry | next-policy | reject}
to
prefix-list name [name...(upto 5 max)]
from
— prefix-list name [name...(upto 5 max)]
The following is a sample prefix list and policy statement configuration output.
A:ALA-49>config>router>policy-options# info
----------------------------------------------
prefix-list "prefixlist1"
prefix 10.20.30.0/24 through 32
exit
prefix-list "prefixlist2"
prefix 10.10.10.0/24 through 32
exit
...
policy-statement "ProxyARPpolicy"
entry 10
from
prefix-list "prefixlist1"
exit
to
prefix-list "prefixlist2"
exit
action reject
exit
default-action accept
exit
exit
...
----------------------------------------------
A:ALA-49>config>router>policy-options#
Use the following syntax to configure proxy ARP.
config>router>interface interface-name
local-proxy-arp
proxy-arp-policy policy-name [policy-name...(upto 5 max)]
remote-proxy-arp
The following is a sample proxy ARP configuration output.
A:ALA-49>config>router>if# info
----------------------------------------------
address 192.0.2.59/24
local-proxy-arp
proxy-arp
policy-statement "ProxyARPpolicy"
exit
----------------------------------------------
A:ALA-49>config>router>if#