cannot ping outside hostnames only (IPs work)

Layer_Two — Tue, 12 Mar 2019 04:04:08 GMT

Hi,

I have an ASA 5505 at home... I have connected it to my Router/ Wi-fi ap and configured it to get DHCP IP and routes..

all works except pinging netbios names on my inside network...

For example, on my outside network (connected to my router) I have a NAS called diskstation. From my inside network I can ping 192.168.1.101 but I cannot ping it using (Diskstation)

The odd this if that if I do ping -a 192.168.1.101 it will reply:

Pinging DISKSTATION [192.168.1.101] with 32 bytes of data and it replies...

Any Ideas?

hi,did you configure DNS

johnlloyd_13 — Sun, 13 Apr 2014 13:40:49 GMT

hi,

did you configure DNS lookup?

dns domain-lookup inside
dns server-group DefaultDNS
name-server 8.8.8.8

Hi, If I ping from my inside

Layer_Two — Sun, 13 Apr 2014 16:18:59 GMT

Hi,

If I ping from my inside network:

C:\Users\user>ping -a 192.168.1.101

Pinging DISKSTATION [192.168.1.101] with 32 bytes of data:
Reply from 192.168.1.101: bytes=32 time=1ms TTL=64
Reply from 192.168.1.101: bytes=32 time=1ms TTL=64
Reply from 192.168.1.101: bytes=32 time=1ms TTL=64
Reply from 192.168.1.101: bytes=32 time=1ms TTL=64

but:

C:\Users\user>ping diskstation
Ping request could not find host diskstation. Please check the name and try agai
n.

DNS seems correct to me:

sh run
: Saved
:
ASA Version 9.1(5)
!
hostname ciscoasa
enable password 8Ry2YjIyt7RRXU24 encrypted
names
!
interface Ethernet0/0
switchport access vlan 2
!
interface Ethernet0/1
!
interface Ethernet0/2
!
interface Ethernet0/3
!
interface Ethernet0/4
!
interface Ethernet0/5
!
interface Ethernet0/6
!
interface Ethernet0/7
!
interface Vlan1
nameif inside
security-level 100
ip address 192.168.2.1 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
ip address dhcp setroute
!
ftp mode passive
dns domain-lookup inside
dns server-group DefaultDNS
name-server 192.168.1.254
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface
object network obj_any
subnet 0.0.0.0 0.0.0.0
object network Belkin
host 192.168.1.254
object-group protocol DM_INLINE_PROTOCOL_1
protocol-object ip
protocol-object udp
protocol-object tcp
object-group protocol TCPUDP
protocol-object udp
protocol-object tcp
object-group service DM_INLINE_TCP_1 tcp
port-object eq www
port-object eq https
object-group service DM_INLINE_SERVICE_1
service-object tcp destination eq netbios-ssn
service-object udp destination eq netbios-dgm
service-object udp destination eq netbios-ns
access-list inside_access_in extended permit object-group DM_INLINE_PROTOCOL_1 any any
access-list inside_access_in extended permit object-group TCPUDP 192.168.2.0 255.255.255.0 any
access-list inside_access_in extended permit icmp 192.168.2.0 255.255.255.0 interface outside
access-list inside_access_in extended permit icmp interface outside 192.168.2.0 255.255.255.0
access-list global_access extended permit tcp any interface outside object-group DM_INLINE_TCP_1
access-list global_access extended permit icmp any any
access-list global_access extended permit object-group DM_INLINE_SERVICE_1 any any
pager lines 24
logging asdm informational
mtu inside 1500
mtu outside 1500
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-716.bin
no asdm history enable
arp timeout 14400
no arp permit-nonconnected
!
object network obj_any
nat (inside,outside) dynamic interface dns
!
nat (inside,outside) after-auto source dynamic any interface dns
access-group inside_access_in in interface inside
access-group global_access global
timeout xlate 3:00:00
timeout pat-xlate 0:00:30
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute
timeout tcp-proxy-reassembly 0:01:00
timeout floating-conn 0:00:00
dynamic-access-policy-record DfltAccessPolicy
user-identity default-domain LOCAL
http server enable
http 192.168.1.0 255.255.255.0 inside
http 192.168.2.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart warmstart
crypto ipsec security-association pmtu-aging infinite
crypto ca trustpool policy
telnet timeout 5
no ssh stricthostkeycheck
ssh timeout 5
ssh key-exchange group dh-group1-sha1
console timeout 0

dhcp-client client-id interface outside
dhcpd auto_config outside
!
dhcpd address 192.168.2.5-192.168.2.132 inside
dhcpd auto_config outside interface inside
dhcpd enable inside
!
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
username cisco password 3USUcOPFUiMCO4Jk encrypted privilege 15
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
parameters
message-length maximum client auto
message-length maximum 512
policy-map global_policy
class inspection_default
inspect dns preset_dns_map
inspect ftp
inspect h323 h225
inspect h323 ras
inspect rsh
inspect rtsp
inspect esmtp
inspect sqlnet
inspect skinny
inspect sunrpc
inspect xdmcp
inspect sip
inspect netbios
inspect tftp
inspect ip-options
!
service-policy global_policy global
prompt hostname context
no call-home reporting anonymous
Cryptochecksum:c03c6115777e59fc29aab285b1faf3be

Hi,Could you issue this

johnlloyd_13 — Mon, 14 Apr 2014 01:29:20 GMT

Hi,

Could you issue this command?

>nslookup diskstation

Also, make sure you've set up correctly the host file/zone records on your DNS (192.168.1.254).

topic cannot ping outside hostnames only (IPs work) in Network Security

cannot ping outside hostnames only (IPs work)

hi,did you configure DNS

Hi, If I ping from my inside

Hi,Could you issue this