Hi,
I've this problem if I try to connect to this website http://www.unica.it directly from DSL router everything is ok, but
when I try to connect to this website through a Point to Point wireless: DSL Router -- RB411 -- RB411 I can't. All internet websites are visible but not unica.it.

This is very strange when I do a traceroute:

Google Ok
/tool traceroute http://www.google.it
ADDRESS STATUS
1 192.168.1.3 2ms 1ms 1ms
2 192.168.100.1 63ms 63ms 59ms
3 88.40.63.129 62ms timeout timeout
4 217.141.249.130 62ms 61ms 100ms
5 151.99.98.57 70ms 73ms 79ms
6 151.99.98.110 83ms 79ms 87ms
7 80.20.8.165 77ms 80ms 82ms
8 195.22.192.189 89ms 81ms 79ms
9 80.81.192.46 94ms 96ms 94ms
10 129.250.2.148 92ms 94ms 100ms
mpls-label=380705 more-labels
mpls-label=100032
11 129.250.2.20 109ms 111ms 108ms
mpls-label=100032
12 129.250.2.66 103ms 105ms 104ms
13 83.231.146.198 219ms 196ms 142ms
14 208.69.34.231 122ms 120ms 119ms

unica.it
/tool traceroute http://www.unica.it
ADDRESS STATUS
1 192.168.1.100 timeout timeout 991ms host unreachable
2 192.168.1.100 timeout timeout 991ms host unreachable
3 192.168.1.100 timeout timeout 991ms host unreachable
4 192.168.1.100 timeout timeout 991ms host unreachable
5 192.168.1.100 timeout timeout 991ms host unreachable
6 192.168.1.100 timeout timeout 990ms host unreachable

Some ideas?
Cetalfio

This is really strange...

I have tried many times without understanding why only this website is not displayed on the browser (http://www.unica.it) and It's impossible to trace it.

If I try inside of RB
/tool traceroute http://www.unica.it or /tool traceroute 192.146.242.10
ADDRESS STATUS
1 0.0.0.0 timeout timeout timeout
2 0.0.0.0 timeout timeout timeout
3 (unknown) timeout timeout timeout

but if I try

/tool traceroute http://192.146.242.10
ADDRESS STATUS
1 192.168.1.2 4ms 2ms 2ms
2 0.0.0.0 timeout timeout timeout
3 host141-63-static.40-88-b.business.telecomitalia.it
245ms 44ms 43ms
4 r-ca29-vl2.opb.interbusiness.it 47ms 48ms 44ms
5 r-na71-r-na2.opb.interbusiness.it 51ms 56ms 51ms
6 crs-rm002-b-crs-mi002.opb.interbusiness.it 62ms 62ms
60ms
7 host213-8-static.20-80-b.business.telecomitalia.it 6
5ms 62ms 63ms
8 mil53-ibs-resid-8.seabone.net 67ms 62ms 63ms
9 ge-0.de-cix.frnkge03.de.bb.gin.ntt.net 77ms 101ms 78
ms
etc. etc.

Why this strange behavior?

I think some firewall filter of this website, is it possible?

Cetalfio

It is obviously a firewall filter on the garr backbone.
Anyway i can see http://www.unica.it even through my mikrotik network.. But not traceroute it.

Hi Medianet,
I can't see only this website from browser, can I try some mikrotik's settings to solve the problem?

Some ideas?
Cetalfio

What is your Scenario?
aDSL > LAN > RB411 > Wireless > RB411 > LAN > PC ?
are you doing routing between those 2 LANs? Or Transparent Bridging?
(Facendo Bridge tra le due LAN lasceresti solo il router aDSL il compito del routing e dhcp. Magari il tuo è un problema di NAT)

Hi,
the scenario is:
xDSL Router --> AP Bridge RB411 L4 --> Station RB411 L3

xDSL - 192.168.1.1

AP Bridge RB411 L4

/interface wireless
0 R name="wlan1" mtu=1500 mac-address=00:C0:CA:1A:??:?? arp=enabled
interface-type=Atheros AR5213 mode=ap-bridge ssid="MioSSID"
frequency=5600 band=5ghz scan-list=default antenna-mode=ant-a
wds-mode=disabled wds-default-bridge=none wds-ignore-ssid=no
default-authentication=yes default-forwarding=yes default-ap-tx-limit=0
default-client-tx-limit=0 hide-ssid=no security-profile=Sicurezza
compression=no

/interface bridge
0 192.168.1.10/8 192.0.0.0 192.255.255.255 bridge1

0 R name="bridge1" mtu=1500 arp=enabled mac-address=00:0C:42:10:??:??
protocol-mode=none priority=0x8000 auto-mac=yes
admin-mac=00:00:00:00:00:00 max-message-age=20s forward-delay=15s
transmit-hold-count=6 ageing-time=5m

/ip dns> print
primary-dns: 208.67.222.222
secondary-dns: 208.67.220.220
allow-remote-requests: yes
max-udp-packet-size: 512
cache-size: 2048KiB
cache-max-ttl: 1w
cache-used: 26KiB

Flags: X - disabled, A - active, D - dynamic, C - connect, S - static, r - rip, b - bgp, o - ospf, m - mme,
B - blackhole, U - unreachable, P - prohibit
# DST-ADDRESS PREF-SRC GATEWAY-STATE GATEWAY DISTANCE INTERFACE
0 A S 0.0.0.0/0 reachable 192.168.1.1 1 bridge1
1 ADC 192.0.0.0/8 192.168.1.10 0 bridge1

RB411 Station:

/ip address
0 192.168.1.20/8 192.0.0.0 192.255.255.255 wlan1
1 192.168.0.1/24 192.168.0.0 192.168.0.255 ether1

/ip route
0 A S 0.0.0.0/0 reachable 192.168.1.1 1 wlan1
1 ADC 192.0.0.0/8 192.168.1.20 0 wlan1
2 ADC 192.168.0.0/24 192.168.0.1 0 eth1

/interface wireless
name="wlan1" mtu=1500 mac-address=00:C0:CA:1A:??:?? arp=enabled interface-type=Atheros AR5213
mode=station ssid="MioSSID" frequency=5600 band=5ghz scan-list=default antenna-mode=ant-a
wds-mode=disabled wds-default-bridge=none wds-ignore-ssid=no default-authentication=yes
default-forwarding=yes default-ap-tx-limit=0 default-client-tx-limit=0 hide-ssid=no
security-profile=Sicurezza compression=no


In the RB411 station there is only a masquarade on wlan
Flags: X - disabled, I - invalid, D - dynamic
0 chain=srcnat action=masquerade out-interface=wlan1

(sto pensando ad un possibile problema di configurazione delle RB ma perchè solamente sul sito dell'università. I DNS di OpenDNS sono gli stessi anche sul router su linea Telecom 7 Mega)

grazie Cetalfio

http://www.unica.it [192.146.242.10]
You have a routing configuration that doesn't let 192.x.x.x go out of your local network..

/ip route
0 A S 0.0.0.0/0 reachable 192.168.1.1 1 wlan1
1 ADC 192.0.0.0/8 192.168.1.20 0 wlan1

set it 192.168.0.0/16 at least... (even i don't understand why you are applying this route)

Spero sia d'aiuto.
Ciao

change your IP address on the bridge to be:

192.168.1.10/24, not /8.

Sam

Thank you guys

(continuavo a guardare altre cose ma non alla subnet e all'indirizzo di destinazione)