03-28-2012 03:10 PM - edited 03-07-2019 05:50 AM
Fair warning, I'm a but of a noob so please bear with me. I'm trying to set up a new ASA 5510. I have a pretty simple set up with one /24 on the inside NATed to a DHCP address on the outside. Everything on the inside works and I can ping the outside interface from external devices. No matter what I do I can't get anything internal to route across the border to the outside and back. To try and eliminate ACL issues as a possibility I added permit any any rules to the incoming access lists on the inside and outside interfaces. I'd appreciate any help I can get. Here's the sh run.
: Saved
:
ASA Version 8.4(3)
!
hostname gateway
domain-name xxx.local
enable password xxx encrypted
passwd xxx encrypted
names
!
interface Ethernet0/0
nameif outside
security-level 0
ip address dhcp setroute
!
interface Ethernet0/1
nameif inside
security-level 100
ip address 10.x.x.x 255.255.255.0
!
interface Ethernet0/2
shutdown
no nameif
no security-level
no ip address
!
interface Ethernet0/3
shutdown
no nameif
no security-level
no ip address
!
interface Management0/0
nameif management
security-level 100
ip address 192.168.1.1 255.255.255.0
management-only
!
ftp mode passive
dns domain-lookup inside
dns server-group DefaultDNS
name-server 10.x.x.x
domain-name xxx.local
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface
object network inside-network
subnet 10.x.x.x 255.255.255.0
object-group protocol TCPUDP
protocol-object udp
protocol-object tcp
access-list outside_access_in extended permit ip any any
access-list inside_access_in extended permit ip any any
pager lines 24
logging enable
logging buffered informational
logging asdm informational
mtu management 1500
mtu inside 1500
mtu outside 1500
no failover
icmp unreachable rate-limit 1 burst-size 1
icmp permit any inside
icmp permit any outside
no asdm history enable
arp timeout 14400
!
object network inside-network
nat (any,outside) dynamic interface
access-group inside_access_in 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
aaa authentication http console LOCAL
http server enable
http 192.168.1.0 255.255.255.0 management
http 10.x.x.x 255.255.255.0 inside
http authentication-certificate management
http authentication-certificate inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart warmstart
telnet timeout 5
ssh 192.168.1.0 255.255.255.0 management
ssh 10.x.x.x 255.255.255.0 inside
ssh timeout 5
ssh version 2
console timeout 0
dhcp-client client-id interface outside
dhcpd address 192.168.1.2-192.168.1.254 management
dhcpd enable management
!
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
webvpn
username xxx password xxx encrypted
!
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
inspect icmp
!
service-policy global_policy global
prompt hostname context
no call-home reporting anonymous
Cryptochecksum:fe19874e18fe7107948eb0ada6240bc2
: end
no asdm history enable
Message was edited by: Brendan ODonnell for spelling
03-28-2012 03:49 PM
I found something curious, though I'm not sure it helps. When I plug the outside drop directly into my laptop I get the following routes:
Destination Gateway Genmask Flags Metric Ref Use Iface
default 10.42.45.46 0.0.0.0 UG 0 0 0 eth0
10.42.45.46 * 255.255.255.255 UH 0 0 0 eth0
link-local * 255.255.0.0 U 1000 0 0 wlan0
192.168.111.0 * 255.255.255.0 U 2 0 0 wlan0
And I can ping the default gateway:
brendan@this:~$ ping 10.42.45.46
PING 10.42.45.46 (10.42.45.46) 56(84) bytes of data.
64 bytes from 10.42.45.46: icmp_req=1 ttl=64 time=70.7 ms
64 bytes from 10.42.45.46: icmp_req=2 ttl=64 time=73.6 ms
64 bytes from 10.42.45.46: icmp_req=3 ttl=64 time=57.2 ms
When I plug the drop into the ASA I get the same route there:
Gateway of last resort is 10.42.45.46 to network 0.0.0.0
C 10.0.1.0 255.255.255.0 is directly connected, inside
d* 0.0.0.0 0.0.0.0 [1/0] via 10.42.45.46, outside
But I can't ping the gateway:
Sending 5, 100-byte ICMP Echos to 10.42.45.46, timeout is 2 seconds:
?????
Success rate is 0 percent (0/5)
This can't be right, can it?
03-28-2012 06:13 PM
Brendan,
A couple of questions:
1. Can you ping outside of the network from a host? Try pinging 4.2.2.1 from a host on the 10.0.1.0/24 network and see if you get a response.
2. If you get a response, then web traffic needs to be inspected. Add:
policy-map global_policy
class inspection_default
inspect http
3. Take your access-lists off for now; they're not needed. Everything is blocked by default from outside in, but from inside out will be passed.
Let's try these things first to see if any of it works
HTH,
John
03-29-2012 06:56 AM
John,
Thanks so much for the quick response.
1. I can't ping anything on the outside from any inside hosts. Running a debug icmp trace before shows me this:
ICMP echo request from inside:10.0.1.x to outside:4.2.2.1 ID=2618 seq=1 len=56
ICMP echo request translating inside:10.0.1.x to outside:x.x.x.x
ICMP echo request from inside:10.0.1.x to outside:4.2.2.1 ID=2618 seq=2 len=56
ICMP echo request translating inside:10.0.1.x to outside:x.x.x.x
ICMP echo request from inside:10.0.1.x to outside:4.2.2.1 ID=2618 seq=3 len=56
ICMP echo request translating inside:10.0.1.x to outside:x.x.x.x
ICMP echo request from inside:10.0.1.x to outside:4.2.2.1 ID=2618 seq=4 len=56
ICMP echo request translating inside:10.0.1.x to outside:x.x.x.x
ICMP echo request from inside:10.0.1.x to outside:4.2.2.1 ID=2618 seq=5 len=56
ICMP echo request translating inside:10.0.1.x to outside:x.x.x.x
2. I added the inspect line anyway, no change.
~Brendan
03-29-2012 07:08 AM
I was also able to verify (I think...) the proper xlate entries.
gateway# sh xlate | i 10.0.1.x
TCP PAT from any:10.0.1.x/34187 to outside:x.x.x.x/34187 flags ri idle 0:00:06 timeout 0:00:30
TCP PAT from any:10.0.1.x/34186 to outside:x.x.x.x/34186 flags ri idle 0:00:06 timeout 0:00:30
gateway#
~Brendan
03-29-2012 02:27 PM
I logged a parrellel thread at serverfault and have been making some progress there. Here is the link,
http://serverfault.com/questions/374621/initial-cisco-asa-5510-config.
Basically my outside IP address and gateway are on different subnets and its triggering the ASA to ignore the ARP packets from the gateway with a 'Dropping request at outside from unsolicited non-adjacent 10.42.45.46 2a30.4410.2789 for x.x.x.x 0000.0000.0000'.
~Brendan
03-29-2012 05:57 PM
Brendan,
I noticed from your other thread that you have a Cradlepoint device? Can you remove that device from the mix to see if your problem goes away or have you already done this? I had issues with a Cradlepoint in the past.
John
03-30-2012 10:00 AM
Unfortunatly I can't since the Sprint U1901 is a USB device. I'm using the CradlePoint in pass-through mode to translate the connection to RJ-45.
~Brendan
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