ASDM connects from one interface only.

John Bachman — Fri, 21 Feb 2020 14:34:04 GMT

Hello,

I can only connect to ASDM from hosts on192.168.1.0/24 (inside interfaces on VLAN2)

Other hosts on other VLANs cant connect... Is there a limitation of the ASA to only have one VLAN allowed to access ASDM ?

I can`t https://192.168.1.1/admin/public/index.html from 172.100.20.100. but it`s ok from 192.168.1.0/24

I can ping 192.168.1.0/24 from 172.100.20.0/24, so it`s not a connectivity or NAT issue

http server enable
http 192.168.1.0 255.255.255.0 inside (VLAN2)
http 172.100.20.0 255.255.255.0 test1(VLAN12)

Any help greatly appreciated.

Re: ASDM connects from one interface only.

mikael.lahtela — Tue, 24 Oct 2017 20:34:39 GMT

Hi,

No, there is no limit to only access asdm from one vlan.
I think we need some more information, can you provide interface config and route config?

br, Micke

Re: ASDM connects from one interface only.

John Bachman — Tue, 24 Oct 2017 20:41:20 GMT

Thank you, as I said I can ping between VLAN 2 and VLAN12, so it is not a connectivity issue, it is more a security or access issue from VLAN 12 hosts.

ciscoasa# sh run
: Saved
:
ASA Version 8.2(1)
!
hostname ciscoasa
enable password 8Ry2YjIyt7RRXU24 encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
names
name 172.100.30.0 test2-network
!
interface Vlan1
nameif outside
security-level 0
ip address dhcp setroute
!
interface Vlan2
nameif inside
security-level 100
ip address 192.168.1.1 255.255.255.0
!
interface Vlan12
nameif test1
security-level 100
ip address 172.100.20.1 255.255.255.0
!
interface Vlan22
nameif test172.100.30.0
security-level 100
ip address 172.100.30.1 255.255.255.0
!
interface Ethernet0/0
!
interface Ethernet0/1
switchport access vlan 2
!
interface Ethernet0/2
switchport access vlan 12
!
interface Ethernet0/3
switchport access vlan 22
!
interface Ethernet0/4
switchport access vlan 32
!
interface Ethernet0/5
shutdown
!
interface Ethernet0/6
switchport access vlan 12
!
interface Ethernet0/7
switchport monitor Ethernet0/1
switchport monitor Ethernet0/2
!
ftp mode passive
clock timezone EST -5
clock summer-time EDT recurring
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface
access-list inside_nat0_outbound extended permit ip 10.100.10.0 255.255.255.0 172.100.20.0 255.255.255.0
access-list test172.100.30.0_nat0_outbound extended permit ip test2-network 255.255.255.0 172.100.20.0 255.255.255.0
access-list test172.100.30.0_nat0_outbound extended permit ip test2-network 255.255.255.0 10.100.10.0 255.255.255.0
access-list test172.100.30.0_nat0_outbound extended permit ip test2-network 255.255.255.0 192.168.1.0 255.255.255.0
access-list test1_nat0_outbound extended permit ip 172.100.20.0 255.255.255.0 test2-network 255.255.255.0
access-list test1_nat0_outbound extended permit ip 172.100.20.0 255.255.255.0 10.100.10.0 255.255.255.0
access-list test1_nat0_outbound extended permit ip 172.100.20.0 255.255.255.0 192.168.1.0 255.255.255.0
access-list inside_nat0_outbound_1 extended permit ip 192.168.1.0 255.255.255.0 172.100.20.0 255.255.255.0
access-list inside_nat0_outbound_1 extended permit ip 192.168.1.0 255.255.255.0 test2-network 255.255.255.0
pager lines 24
logging enable
logging asdm informational
mtu outside 1500
mtu inside 1500
mtu test1 1500
mtu test172.100.30.0 1500
no failover
icmp unreachable rate-limit 1 burst-size 1
asdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list inside_nat0_outbound_1
nat (inside) 1 192.168.1.0 255.255.255.0
nat (test1) 0 access-list test1_nat0_outbound
nat (test1) 1 172.100.20.0 255.255.255.0
nat (test172.100.30.0) 0 access-list test172.100.30.0_nat0_outbound
nat (test172.100.30.0) 1 test2-network 255.255.255.0
route inside 10.100.10.0 255.255.255.0 192.168.1.2 1
timeout xlate 3:00:00
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
dynamic-access-policy-record DfltAccessPolicy
aaa authentication ssh console LOCAL
http server enable
http 192.168.1.0 255.255.255.0 inside
http 172.100.20.0 255.255.255.0 test1
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec security-association lifetime seconds 28800
crypto ipsec security-association lifetime kilobytes 4608000
telnet timeout 5
ssh 192.168.1.0 255.255.255.0 inside
ssh timeout 5
ssh version 2
console timeout 0
dhcpd address 172.100.20.100-172.100.20.200 test1
dhcpd dns 24.200.241.37 interface test1
dhcpd domain connexion-ip.com interface test1
dhcpd enable test1
!

threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
ntp server 128.138.140.44 source outside
webvpn
username jbachman password h1blS.6LjJj5WYDw encrypted
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
parameters
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 netbios
inspect rsh
inspect rtsp
inspect skinny
inspect esmtp
inspect sqlnet
inspect sunrpc
inspect tftp
inspect sip
inspect xdmcp
inspect icmp
inspect pptp
!
service-policy global_policy global
prompt hostname context
Cryptochecksum:75bc9c5ca876f746064ed26b267b3625
: end

Re: ASDM connects from one interface only.

mikael.lahtela — Tue, 24 Oct 2017 20:51:51 GMT

Hi,

"I can`t https://192.168.1.1/admin/public/index.html from 172.100.20.100. but it`s ok from 192.168.1.0/24"

Have you tried to access asdm with https://172.100.20.1/ ?
As your traffic should come from there right?

If you are going to access 192.168.1.1 then you need to configure:

http 172.100.20.0 255.255.255.0 inside

br, Micke

Re: ASDM connects from one interface only.

John Bachman — Tue, 24 Oct 2017 21:02:03 GMT

That worked. I cant believe the ASDM is attached to the local interface...

Thanks so much !

topic Re: ASDM connects from one interface only. in Network Security

ASDM connects from one interface only.

Re: ASDM connects from one interface only.

Re: ASDM connects from one interface only.

Re: ASDM connects from one interface only.

Re: ASDM connects from one interface only.