how to find Proxy arp

Answered Question
Dec 10th, 2008
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Hi all

How do we find whether proxy ARP is enabled on an SVI?


Kind regards

Ullas

Correct Answer by Giuseppe Larosa about 8 years 3 months ago

Hello Ullas


I was meaning


sh ip int Vlan 88


that shows the ACLS and so on


example:


sh ip int Vlan5

Vlan5 is up, line protocol is up

Internet address is 10.98.130.3/24

Broadcast address is 255.255.255.255

Address determined by non-volatile memory

MTU is 1500 bytes

Helper address is not set

Directed broadcast forwarding is disabled

Multicast reserved groups joined: 224.0.0.1 224.0.0.2 224.0.0.22 224.0.0.13

Outgoing access list is not set

Inbound access list is not set

Proxy ARP is enabled

Local Proxy ARP is disabled

Security level is default

Split horizon is enabled

ICMP redirects are never sent

ICMP unreachables are always sent

ICMP mask replies are never sent

IP fast switching is enabled

IP Flow switching is disabled

IP CEF switching is enabled

IP CEF switching turbo vector

IP Null turbo vector

Associated unicast routing topologies:

Topology "base", operation state is UP

Associated multicast routing topologies:

Topology "base", operation state is UP

IP multicast fast switching is enabled

IP multicast distributed fast switching is disabled


Hope to help

Giuseppe


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Giuseppe Larosa Wed, 12/10/2008 - 09:51
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Hello Ullas,


use show ip interface Vlan X and look for lines with the Proxy ARP


sh ip int Vlan5 | inc Proxy ARP

Proxy ARP is enabled

Local Proxy ARP is disabled


Hope to help

Giuseppe


ullasupendran Wed, 12/10/2008 - 09:56
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Hi


my sh int vlan output is below.It is not showing any info abt proxy arp .does that mean its disabled?


sh int vlan 88

Vlan88 is up, line protocol is up

Hardware is EtherSVI, address is 0013.5fa2.f000 (bia 0013.5fa2.f000)

Description: CISCO

Internet address is 10.248.88.6/24

MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

ARP type: ARPA, ARP Timeout 00:04:00

Last input 00:00:00, output 00:00:00, output hang never

Last clearing of "show interface" counters 18w3d

Input queue: 2/75/399/0 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: fifo

Output queue: 0/40 (size/max)

5 minute input rate 1000 bits/sec, 2 packets/sec

5 minute output rate 16000 bits/sec, 13 packets/sec

L2 Switched: ucast: 160751241510 pkt, 19215835524246 bytes - mcast: 19999173 pkt, 2057553072 bytes

L3 in Switched: ucast: 58749 pkt, 4089353 bytes - mcast: 0 pkt, 0 bytes mcast

L3 out Switched: ucast: 394366724 pkt, 209012880801 bytes mcast: 0 pkt, 0 bytes

76537045 packets input, 10822323574 bytes, 0 no buffer

Received 19999149 broadcasts (5061148 IP multicast)

0 runts, 0 giants, 4 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

464834396 packets output, 221265441279 bytes, 0 underruns

0 output errors, 0 interface resets

0 output buffer failures, 0 output buffers swapped out


Ullas

Correct Answer
Giuseppe Larosa Wed, 12/10/2008 - 10:00
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Hello Ullas


I was meaning


sh ip int Vlan 88


that shows the ACLS and so on


example:


sh ip int Vlan5

Vlan5 is up, line protocol is up

Internet address is 10.98.130.3/24

Broadcast address is 255.255.255.255

Address determined by non-volatile memory

MTU is 1500 bytes

Helper address is not set

Directed broadcast forwarding is disabled

Multicast reserved groups joined: 224.0.0.1 224.0.0.2 224.0.0.22 224.0.0.13

Outgoing access list is not set

Inbound access list is not set

Proxy ARP is enabled

Local Proxy ARP is disabled

Security level is default

Split horizon is enabled

ICMP redirects are never sent

ICMP unreachables are always sent

ICMP mask replies are never sent

IP fast switching is enabled

IP Flow switching is disabled

IP CEF switching is enabled

IP CEF switching turbo vector

IP Null turbo vector

Associated unicast routing topologies:

Topology "base", operation state is UP

Associated multicast routing topologies:

Topology "base", operation state is UP

IP multicast fast switching is enabled

IP multicast distributed fast switching is disabled


Hope to help

Giuseppe


ullasupendran Wed, 12/10/2008 - 10:03
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Hi guiseppe


Excellent .I got the solution.Thanks .Its rated as deserved.


Ullas

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