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New Member

Unable to set ip nabar protocol-discovery

I am working with a 7206, and when I attempt to apply ip nbar protocol-discovery to FastEthernet0/0, I get an error stating that CEF is in enabled.

I thought that CEF wa enabled by default. What am I missing?

3 REPLIES
New Member

Re: Unable to set ip nabar protocol-discovery

strange!

I am not that familiar with the 7206, but on the 3660, I need to do a global command "IP CEF" before I can run nbar. what is the output of the "show ip int fa0/0 ?

this is what it looks like on a working fa on a 3660

FastEthernet0/0 is up, line protocol is up

Internet address is 172.16.5.252/24

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: 224.0.0.2 224.0.0.10

Outgoing access list is not set

Inbound access list is not set

Proxy ARP is enabled

Security level is default

Split horizon is enabled

ICMP redirects are always sent

ICMP unreachables are always sent

ICMP mask replies are never sent

IP fast switching is enabled

IP fast switching on the same interface is disabled

IP Flow switching is disabled

IP CEF switching is enabled

IP CEF Feature Fast switching turbo vector

IP multicast fast switching is enabled

IP multicast distributed fast switching is disabled

IP route-cache flags are Fast, CEF

Router Discovery is disabled

IP output packet accounting is disabled

IP access violation accounting is disabled

TCP/IP header compression is disabled

RTP/IP header compression is disabled

Probe proxy name replies are disabled

Policy routing is disabled

Network address translation is disabled

WCCP Redirect outbound is disabled

WCCP Redirect inbound is disabled

WCCP Redirect exclude is disabled

BGP Policy Mapping is disabled

Hope this can throw some light on your problem!

Richard.

New Member

Re: Unable to set ip nabar protocol-discovery

I have the same problem. Is there a command to enable NBAR ?? CEF is enabled on my router interfaces but 'show ip nbar .. ' return blanks. Why ??

r#sho ip nbar protocol-discovery stat bit

r#sho ip nbar protocol-discovery top-n

r#sho ip int fa0/0

FastEthernet0/0 is up, line protocol is up

Address determined by non-volatile memory

MTU is 1500 bytes

Helper address is not set

Directed broadcast forwarding is disabled

Multicast reserved groups joined: 224.0.0.10

Outgoing access list is not set

Inbound access list is not set

Proxy ARP is enabled

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 fast switching on the same interface is disabled

IP Flow switching is disabled

IP CEF switching is enabled

IP Feature Fast switching turbo vector

IP Feature CEF switching turbo vector

IP multicast fast switching is disabled

IP multicast distributed fast switching is disabled

IP route-cache flags are Fast, CEF

Router Discovery is disabled

IP output packet accounting is disabled

IP access violation accounting is disabled

TCP/IP header compression is disabled

RTP/IP header compression is disabled

Probe proxy name replies are disabled

Policy routing is disabled

Network address translation is disabled

WCCP Redirect outbound is disabled

WCCP Redirect inbound is disabled

WCCP Redirect exclude is disabled

BGP Policy Mapping is disabled

IP multicast multilayer switching is disabled

r-ing-toronto21#sho ip nbar protocol-discovery

r-ing-toronto21#sho ip nbar protocol-discovery int fa0/0

New Member

Re: Unable to set ip nabar protocol-discovery

Check the IOS i think that not all IOS version support nbar

Regards

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