topic Re: On an ASA I am getting Ambiguous command errors on show commands in Network Security

On an ASA I am getting Ambiguous command errors on show commands

GeneC1961 — Fri, 21 Feb 2020 14:16:28 GMT

On an ASA I am getting ambiguous command errors on show commands. For example, this happens with "show route summary" and "show route eigrp". I am seeing this on a 5512 firewall running 9.4(4)5 and a 5515 running 9.4(2)6

I have an additional 5515 also running 9.4(2)6 that does not have this issue. Has anyone seen this before? Thanks in advance.

Re: On an ASA I am getting Ambiguous command errors on show commands

Flavio Miranda — Sat, 09 Sep 2017 14:24:18 GMT

Could you show the output from both command please?

Re: On an ASA I am getting Ambiguous command errors on show commands

Marvin Rhoads — Sun, 10 Sep 2017 12:44:38 GMT

Also try adding a ? after the commands to see what the ASA thinks should be added to those commands (which should, as you surmise, work as-is).

Re: On an ASA I am getting Ambiguous command errors on show commands

GeneC1961 — Sun, 10 Sep 2017 22:53:42 GMT

OUTPUT:

scrubbed# show route ei
scrubbed# show route eigrp ?
ERROR: % Ambiguous command: "show route eigrp "
scrubbed# show route eigrp
ERROR: % Ambiguous command: "show route eigrp "
scrubbed# show route summary
ERROR: % Ambiguous command: "show route summary"
scrubbed# show route ?

Hostname or A.B.C.D Network to display information about or hostname
bgp                  Border Gateway Protocol (BGP)
connected            Connected
eigrp                Enhanced Interior Gateway Routing Protocol (EIGRP)
ospf                 Open Shortest Path First (OSPF)
rip                  Routing Information Protocol (RIP)
static               Static routes
summary              Summary of all routes
Current available interface(s):
dmz                  Name of interface GigabitEthernet0/2
inside               Name of interface GigabitEthernet0/1
mac                  Name of interface GigabitEthernet0/3
management           Name of interface Management0/0
outside              Name of interface GigabitEthernet0/0
zone                 Show zone routes
|                    Output modifiers
<cr>

Re: On an ASA I am getting Ambiguous command errors on show commands

GeneC1961 — Mon, 18 Sep 2017 20:26:40 GMT

Does anyone have any thoughts on this?

Re: On an ASA I am getting Ambiguous command errors on show commands

felix.hartung — Wed, 02 Jan 2019 14:54:24 GMT

Hello GeneC1961,

I know this threat is now over a year old, but I have run into the very same problem... and found the solution. This is due to the fact that you have dns lookup enabled on your ASA. That's the command dns domain-lookup <interface>.

If that command is in place, the ASA does not know wether to interpret "eigrp", "ospf" or any other word as a >>"Hostname or A.B.C.D"<< for dns-lookup or as the specific command. That's why it's telling you "ERROR: % Ambiguous command:"

HOWEVER, funny thing here, do the following to get both to work again:

no dns domain-lookup <interface>
dns domain-lookup <interface>
show route eigrp

--> Problem SOLVED in my case, the DNS-Lookup worked again after enabling it again and the ambiguous command vanished and I was able to use show route eigrp again. Just looks like another great feature to me 🙂

Regards,
Felix