07-29-2013 10:20 AM - edited 03-04-2019 08:35 PM
Hello, I'm trying to configure a Cisco ASA 5505 router with our Comcast modem. The router will give out a local IP address, but no one can get online. I set a the DNS to go to 208.67.222.222 and 8.8.8.8. In network objects it has global set to from any to any with ip set to deny. Should that be set up to do that? Do I need to and an network object that has inside to outside alow? What might I be scewing up?
Thanks
07-29-2013 10:51 AM
Hi,
Post your config.
Regards
Alain
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07-29-2013 02:05 PM
: Saved
:
ASA Version 8.4(6)5
!
hostname ciscoasa
domain-name wp.comcast.net
enable password 3aTg8pKbdiI5KJTP encrypted
passwd 2KFQnbNIdI.2KYOU 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 10.0.0.2 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
ip address dhcp setroute
!
boot system disk0:/asa846-5-k8.bin
ftp mode passive
clock timezone MST -7
clock summer-time MDT recurring
dns domain-lookup outside
dns server-group DefaultDNS
name-server 208.67.222.222
name-server 8.8.8.8
domain-name wp.comcast.net
object network cfserver
host 10.0.0.254
object service rdc
service tcp destination eq 3389
object network sqlserver
host 10.0.0.249
object network cb1
range 67.111.0.0 67.111.1.128
object network cb2
host 208.0.0.0
object network hostworks
host 67.0.0.0
access-list inside_access extended permit tcp any object cfserver eq www
access-list outside_access_in extended permit tcp object hostworks object cfserver eq www
access-list outside_access_in extended permit object rdc object hostworks object sqlserver
access-list outside_access_in extended permit object rdc object cb1 object sqlserver
access-list outside_access_in extended permit object rdc object cb2 object sqlserver
pager lines 24
logging asdm informational
mtu inside 1500
mtu outside 1500
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-712-102.bin
no asdm history enable
arp timeout 14400
no arp permit-nonconnected
!
object network cfserver
nat (outside,inside) static cfserver service tcp www www
access-group inside_access in interface inside
access-group outside_access_in in interface outside
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 10.0.0.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
telnet timeout 5
ssh timeout 5
ssh key-exchange group dh-group1-sha1
console timeout 0
dhcpd address 10.0.0.150-10.0.0.254 inside
dhcpd enable inside
!
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
webvpn
username zzzz password cz8RhoFEqvcRInDw 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:d381a336b00819172fb18f6e1be5a45d
: end
asdm image disk0:/asdm-712-102.bin
no asdm history enable
07-29-2013 02:30 PM
Hi Chad,
try adding the following:
!
object network inside_network_range
range 10.0.0.150 10.0.0.254
!
nat (inside, outside) source dynamic inside_network_range interface
!
route outside 0.0.0.0 .0.0.0.0
!
...replace
cheers,
Seb.
07-29-2013 04:15 PM
OK I did this:
nat (inside,outside) source dynamic any interface
In NAT it wouldn't take inside_network_range it kept saying inside_network_range was the same as inside. Where do I add
route outside 0.0.0.0 .0.0.0.0
07-29-2013 10:58 PM
Hi,
1)
your router should have given you the default gateway: ip address dhcp setroute
show route should show you this default route.Can you ping 8.8.8.8 from the ASA ?
2) you should inspect ICMP so you can ping from inside to outside
policy-map global_policy
class inspection_default
inspect icmp
3) you should advertise a dns server with DHCP:
dhcpd dns "primary server" "secondary server"
4) no access-group inside_access in interface inside
5) you must do dynamic PAT on the outside interface as already explained by Seb
Regards
Alain
Don't forget to rate helpful posts.
08-13-2013 01:17 PM
OK I am using a different internet connection now. Has a static IP. For the outside they said to use pppoe. Here's my updated log. Modem is connected to port 0 (outside) and my computer is connected to 7 (inside). For the life of me I still can't get it to work any help would be great. Thanks.
: Saved
:
ASA Version 8.4(6)5
!
hostname ciscoasa
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 10.0.0.1 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
pppoe client vpdn group cl
ip address pppoe
!
boot system disk0:/asa846-5-k8.bin
ftp mode passive
clock timezone MST -7
clock summer-time MDT recurring
dns domain-lookup inside
dns domain-lookup outside
dns server-group DefaultDNS
name-server 208.67.222.222
name-server 8.8.8.8
object network cfserver
host 10.0.0.254
object service rdc
service tcp destination eq 3389
object network sqlserver
host 10.0.0.249
object network cb1
range 67.111.111.0 67.111.111.128
object network cb2
host 208.0.0.0
object network hw
host 67.111.111.11
object network inside_network_range
range 10.0.0.1 10.0.0.254
object network obj-10.0.0.0
subnet 10.0.0.0 255.255.255.0
object service all
service tcp source gt 1 destination gt 1
object network outsideip
host 55.000.000.00
access-list inside_access extended permit tcp any object cfserver eq www
access-list inside_access extended permit object all any object outsideip
access-list outside_access_in extended permit tcp object hostworks object cfserver eq www
access-list outside_access_in extended permit object rdc object hostworks object sqlserver
access-list outside_access_in extended permit object rdc object cb1 object sqlserver
access-list outside_access_in extended permit object rdc object cb2 object sqlserver
access-list capin extended permit icmp any any
pager lines 24
logging asdm informational
mtu inside 1500
mtu outside 1500
icmp unreachable rate-limit 1 burst-size 1
icmp permit any inside
asdm image disk0:/asdm-712-102.bin
no asdm history enable
arp timeout 14400
no arp permit-nonconnected
nat (inside,outside) source dynamic inside_network_range interface
!
object network cfserver
nat (outside,inside) static cfserver service tcp www www
object network obj-10.0.0.0
nat (inside,outside) dynamic interface
access-group inside_access in interface inside
access-group outside_access_in in interface outside
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
aaa authentication ssh console LOCAL
http server enable
http 10.0.0.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
telnet timeout 5
ssh 0.0.0.0 0.0.0.0 inside
ssh timeout 5
ssh key-exchange group dh-group1-sha1
console timeout 0
vpdn group cl request dialout pppoe
vpdn group cl localname twistandshout@qwest.net
vpdn group cl ppp authentication pap
vpdn username twistandshout@qwest.net password ***** store-local
dhcpd address 10.0.0.130-10.0.0.254 inside
dhcpd enable inside
!
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
webvpn
username zzzz password cz8RhoFEqvcRInDw encrypted privilege 15
username test password P4ttSyrm33SV8TYp 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:7099137a8240215dc330d5dabab8c131
: end
asdm image disk0:/asdm-712-102.bin
no asdm history enable
08-13-2013 11:39 PM
Hi,
can you do this command and post the result:
packet-tracer input inside icmp 10.0.0.20 8 0 8.8.8.8 detailed
Regards
Alain
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