TMS zl Management and Configuration Guide ST.1.0.090213

D-6
Troubleshooting
Basic Troubleshooting Tools
You can set extended options for tracing a route by typing additional keywords
after the IP address. You can specify any combination of the extended options
shown in Table D-1, and you can enter the options in any order.
Table D-1. Traceroute Extended Options
For example, to trace the route to 10.1.1.1, you might set the timeout to 30
seconds and specify 10 as the maximum number of hops:
hostswitch(tms-module-C)# traceroute 10.1.1.2 timeout 30
maxttl 10
nslookup
You can use the nslookup command to resolve host names with their IP
address. This command is helpful in troubleshooting Domain Name System
(DNS) problems.
To use nslookup on a TMS zl Module that is operating in routing mode, you
must create an access policy that permits DNS traffic from the DNS server to
the TMS zl Module. (For more information about creating access policies, see
“Firewall Access Policies” in Chapter 4: “Firewall.”)
You can enter the following command from either the manager-level context
or the global configuration context in the TMS zl Module’s CLI:
Syntax: nslookup <hostname>
Replace <hostname> with the host name that you want to resolve.
Extended Command Option Purpose Default
Settings
minttl <number of hops> Specifies the minimum number of hops to the
final destination (1–255)
1
maxttl <number of hops> Specifies the maximum number of hops to the
final destination (1–255)
1
timeout <number of seconds> Sets the timeout limit for a packet that does not
reach the final destination (1–120)
5
probes <number of queries> Sets the number of queries that are sent (1–5) 3