[HamWAN PSDR] Reconfiguring w/ firewall ...
Dean Gibson AE7Q
hamwan at ae7q.net
Mon Mar 17 12:13:15 PDT 2014
Well, I think you are going to have to do something about outside
incoming traffic fairly soon.
I run "/interface wireless monitor 0", it usually shows the last IP
address of 195.218.200.205 (Russia). I've got the default radio
firewall enabled, so the only traffic I should see are unsuccessful port
probes (or perhaps ICMP traffic).
If I run constant pings, when I set the ping interval to one second, my
pings predominate, but with a ping interval of two seconds or more, the
above IP predominates.
I don't know how much data he's sending, but today I'm having a hard
time *keeping any connection*. I didn't have this problem before this
past weekend, and I've made no configuration or location change: This
morning, to help reestablishing a connect, I created a new scan list
with only the Paine sector aimed toward me, and I'm using that to reduce
the delay in reconnections.
Note that currently I'm not trying to do anything useful; I've got a
poor antenna location (but it did work reasonably well until today).
Hopefully in a day or two, I will have a better (outside and higher)
temporary location.
If you temporarily give me a different IP address, I can try that to see
if I'm the only one he's pounding on. I doubt that I am.
-- Dean
On 2014-03-16 10:05, Cory (NQ1E) wrote:
> The current plan is to block all unsolicited incoming traffic from the
> internet on the edge routers before it gets to the RF portions of the
> network. However, we don't want to do that until we have automation
> in place to maintain those rules and until we have a self-service way
> for you to poke holes in that configuration should you want to allow
> incoming traffic from the world to one of your IP addresses. If you
> want to block traffic from all sources (including other hams), then
> adding firewall rules to your own device is the correct way to
> accomplish that.
>
> The rules are well established for auto-patches that connect voice
> repeaters to the PSTN. Even incoming telephone calls are allowed as
> long as they are "expected" by the ham. Because the parallels between
> these systems are fairly clear, the plan above puts us in the best
> position to make sure our users are able to maintain their part 97
> compliance.
>
>
> On Sat, Mar 15, 2014 at 11:25 PM, Dean Gibson AE7Q <hamwan at ae7q.net
> <mailto:hamwan at ae7q.net>> wrote:
>
> OK, after seeing the number of "random" IP addresses hitting the
> radio from outside the 44.0.0.0 net, I didn't like the fact that
> the firewall filters were removed in the web site's suggested
> configuration, so I decided to start from scratch. I learned a
> couple things ...
>
> /# -- Restore the radio to a factory fresh state --//
> ///system reset//
> //
> //# === At this point you must connect via MAC address ===//
> ///user set admin password="This is not it ..."//
> ///console clear-history//
> ///system identity set name="CALL-Paine"//
> //
> ///ip//
> //dns set allow-remote-requests=no//
> //address remove [find]//
> //
> ///ip firewall mangle//
> //add action=change-mss chain=output new-mss=1378 protocol=tcp
> tcp-flags=syn tcp-mss=!0-1378//
> //add action=change-mss chain=forward new-mss=1378 protocol=tcp
> tcp-flags=syn tcp-mss=!0-1378//
> //
> ///ip dhcp-server//
> //remove [find]//
> //network remove [find]//
> //
> ///ip dhcp-client//
> //add add-default-route=no dhcp-options=hostname,clientid
> disabled=no interface=ether1 use-peer-dns=no//
> //# -- The following is already configured --//
> //#add add-default-route=yes dhcp-options=hostname,clientid
> disabled=no interface=wlan1//
> //
> //# -- Do the following if you need to move the radio to a
> different network --//
> ///system shutdown//
> //
> //# === At this point you can connect via IP address ===//
> ///system logging//
> //action set remote bsd-syslog=yes remote=my.lcl.log.svr
> remote-port=514 src-address=my.lcl.ether.ip syslog-facility=local1
> syslog-severity=info//
> //add action=remote disabled=no prefix="" topics=!debug,!snmp
> /
> Note that I have "bsd-syslog" set to "yes". This *appears to be
> necessary* if you want a remote system to see "syslog-facility"
> and "syslog-severity" (the radio doesn't save/display those
> settings otherwise).
> /
> ///system ntp client set enabled=yes mode=unicast
> primary-ntp=my.lcl.ntp.svr1 secondary-ntp=my.lcl.ntp.svr2//
> //
> ///interface wireless //
> //channels add band=5ghz-onlyn comment="Cell site sector centered
> at 360 degrees" frequency=5920 list=HamWAN name="Sector300-060"
> width=5//
> //channels add band=5ghz-onlyn comment="Cell site sector centered
> at 120 degrees" frequency=5905 list=HamWAN name="Sector060-180"
> width=5//
> //channels add band=5ghz-onlyn comment="Cell site sector centered
> at 240 degrees" frequency=5890 list=HamWAN name="Sector180-300"
> width=5//
> ///delay 5//
> //set 0 radio-name="CALL/Location-Paine"//
> //set 0 disabled=no frequency-mode=superchannel scan-list=HamWAN
> ssid=HamWAN wireless-protocol=nv2//
> //
> ///tool dns-update dns-server=my.lcl.dns.svr key="MD5 key ..."
> key-name=ddns ttl=3600 zone=ae7q.net <http://ae7q.net>
> name=hamwan-1 address=my.ham.wan.ip//
> ///console clear-history//
> //
> //monitor 0//
> /
> I like my sector names better than just numbers...
>
> These "scripts" (when altered) can just be pasted into a command
> window (otherwise the "/delay 5" above is not necessary).
>
> Oh, I can sometimes connect through my CLOSED window, but that's
> not reliable enough for anything useful.
>
> -- Dean
>
>
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