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Archive for September 1st, 2008

[IPv6] Mikrotik Hotspot Not Working – IPv6 Installed on NIC

Posted by a. Rahman Isnaini r. Sutan on September 1, 2008

Till now I don’t have a good solution for running IPv6 simultanously with Mikrotik Wireless Hotspot.
The condition :

- Your LAN has a dual stack IPv6 / IPv4 installed
- You have to connect to Mikrotik Hotspot Gateway Enabled
- Your first access is browsing and will be redirected to Mikrotik Login Page

The Issue :

No matter you LAN NIC UP/DOWN or we can say connected or not..
With IPv6/IPv4 Dual stack installed, Your Wifi status is Connected but You have error page “Address Not Found” while trying to browse to log in.

What I have done :

Uninstalling IPv6 on Your NIC will help much.
The redirected login page, will be nicely appear waiting for your to enter username & password :)
It’s not happened on my another wifi network.

a. rahman isnaini r.sutan

Posted in IPv6, Mikrotik, wireless | 3 Comments »

[Cisco-Juniper] SSH from Cisco Router to Juniper OS

Posted by a. Rahman Isnaini r. Sutan on September 1, 2008

Spending my time…
Trying to limit login from certain hosts include Cisco routers (OS Version Image : c7200-jk9o3s-mz.123-13.bin”) on a Juniper. The connection allowed is ssh.

Allowing cisco routers doesn’t seem to give a remote login successfully connected.

Cisco#ssh -l boss 192.168.1.145 [connection error:0]

Got this SSH log error on Juniper show log message tailed :

Sep  1 10:21:47  JunOS-GW sshd[38925]: Did not receive identification string from 192.168.1.146
Sep  1 10:21:47  JunOS-GW inetd[2541]: /usr/sbin/sshd[38925]: exit status 0xff00
Sep  1 10:22:15  JunOS-GW sshd[38926]: Did not receive identification string from 192.168.1.146
Sep  1 10:22:15  JunOS-GW inetd[2541]: /usr/sbin/sshd[38926]: exit status 0xff00
Sep  1 10:22:18  JunOS-GW sshd[38927]: Did not receive identification string from 192.168.1.146
Sep  1 10:22:18  JunOS-GW inetd[2541]: /usr/sbin/sshd[38927]: exit status 0xff00
Sep  1 10:22:23  JunOS-GW sshd[38928]: Did not receive identification string from 192.168.1.146
Sep  1 10:22:23  JunOS-GW inetd[2541]: /usr/sbin/sshd[38928]: exit status 0xff00
Sep  1 10:35:52  JunOS-GW sshd[39135]: Did not receive identification string from 192.168.1.146
Sep  1 10:35:52  JunOS-GW inetd[2541]: /usr/sbin/sshd[39135]: exit status 0xff00
Sep  1 10:36:03  JunOS-GW sshd[39136]: Did not receive identification string from 192.168.1.146
Sep  1 10:36:03  JunOS-GW inetd[2541]: /usr/sbin/sshd[39136]: exit status 0xff00
Sep  1 10:36:04  JunOS-GW sshd[39137]: Did not receive identification string from 192.168.1.146
Sep  1 10:36:04  JunOS-GW inetd[2541]: /usr/sbin/sshd[39137]: exit status 0xff00
Sep  1 10:36:05  JunOS-GW sshd[39138]: Did not receive identification string from 192.168.1.146
Sep  1 10:36:05  JunOS-GW inetd[2541]: /usr/sbin/sshd[39138]: exit status 0xff00

The symptom : Your outbound SSH on Cisco Router is version 1, while your juniper by default is version 2. Please add/enable ssh protocol-version 2 (v2) as well.. on your Juniper.

You@JunOS-GW# show
ssh {
root-login deny;
protocol-version [ v2 v1 ];
connection-limit 10;
}

[edit system services]

you@JunOS#set system services ssh protocol-version v1
you@JunOS#set system services ssh protocol-version v2
you@JunOS#set system services ssh protocol-version v1 v2
(nope sure this one :) ) try it)

Then commit ! [Thanks to Ang Kah from Bangky.Net for Inspiring]

a. rahman isnaini r.sutan

Posted in Juniper, security | Leave a Comment »