topic Re: Can not manage ASA5505 Device from Outside NW using TELENT o in Network Security

Can not manage ASA5505 Device from Outside NW using TELENT or WEB..........

Dipesh Patel — Mon, 11 Mar 2019 12:05:58 GMT

Dear all,

I can not access telnet or http from outside......

I m trying to accesstelnet or http using IP

10.5.213.22

Working Running Config is life this .....

sh run

: Saved

ASA Version 7.2(2)

hostname ABB-ASA5505

domain-name cisco.com

enable password xxx

names

interface Vlan1

nameif inside

security-level 100

ip address 172.5.200.1 255.255.255.0

interface Vlan2

nameif outside

security-level 0

ip address 10.5.213.30 255.255.255.0

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

passwd xxx

ftp mode passive

clock timezone IST 5 30

dns server-group DefaultDNS

domain-name cisco.com

access-list inside_access_in extended permit ip host 172.5.200.2 host 10.5.161.16

access-list outside_access_in extended permit ip host 10.5.161.16 host 10.5.213.21

access-list outside_access_in extended permit ip host 10.5.161.16 host 10.5.213.22

pager lines 24

logging enable

logging buffered debugging

logging asdm informational

mtu inside 1500

mtu outside 1500

icmp unreachable rate-limit 1 burst-size 1

asdm image disk0:/asdm-522.bin

no asdm history enable

arp timeout 14400

static (inside,outside) 10.5.213.21 172.5.200.2 netmask 255.255.255.255

static (inside,outside) 10.5.213.22 172.5.200.1 netmask 255.255.255.255

access-group inside_access_in in interface inside

access-group outside_access_in in interface outside

route outside 0.0.0.0 0.0.0.0 10.5.213.35 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 uauth 0:05:00 absolute

http server enable

http 172.5.200.2 255.255.255.255 inside

http 10.5.161.16 255.255.255.255 outside

no snmp-server location

no snmp-server contact

snmp-server enable traps snmp authentication linkup linkdown coldstart

telnet 172.5.200.2 255.255.255.255 inside

telnet 10.5.161.16 255.255.255.255 outside

telnet timeout 5

ssh timeout 5

console timeout 0

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 rsh

inspect rtsp

inspect esmtp

inspect sqlnet

inspect skinny

inspect sunrpc

inspect xdmcp

inspect sip

inspect netbios

inspect tftp

inspect icmp

service-policy global_policy global

prompt hostname context

Cryptochecksum:xxx

: end

ABB-ASA5505#

Pls help

Re: Can not manage ASA5505 Device from Outside NW using TELENT o

m.sir — Thu, 21 Feb 2008 11:52:50 GMT

You need permit telnet/web access for 10.5.213.22

with commands

telnet 10.5.213.22 255.255.255.255 outside

http 10.5.213.22 255.255.255.255 outside

Re: Can not manage ASA5505 Device from Outside NW using TELENT o

Dipesh Patel — Fri, 22 Feb 2008 08:50:43 GMT

Dear,

10.5.161.16 is my outside NW PC from where I need to access ASA device.

10.5.213.22 is mapped address for 172.5.200.1 ( Vlan 1 interface - Inside nw Address ).

I have given access for telnet and web but it's not working even I can not ping 10.5.213.22 from 10.5.161.16 ( outside )

Re: Can not manage ASA5505 Device from Outside NW using TELENT o

Harald-Norvik — Fri, 22 Feb 2008 16:42:54 GMT

No, you should not address translate the inside interface and connect to this from the outside.

Use the outside interface to connect to. There is no additional security by trying to pass through the ASA.

Test this:

ping the outside interface. If it answers, your routing is correct.

Then use https or telnet to this ip address. However, I would never configure telnet access on an outside interface. Use SSH instead!

You may get around this by using the command `management-access inside`, but I am not sure if you will actually get it working. This command is more intended to manage a firewall through a VPN tunnel.

Harald

Re: Can not manage ASA5505 Device from Outside NW using TELENT o

srue — Fri, 22 Feb 2008 19:05:04 GMT

PIX/ASA won't let you telnet to the outside interface unless it's over a VPN.

stick to SSH/HTTPS.

Make sure you generate your rsa keys.

Re: Can not manage ASA5505 Device from Outside NW using TELENT o

onlyabhishek007 — Fri, 07 Mar 2008 09:29:03 GMT

u r not able to telnet the outside interface of the firewall use the ssh for the command line access.use the following command for access the web from outside

http 10.5.213.22 255.255.255.255 outside

ssh 10.5.213.22 255.255.255.255 outside