issue connecting SXT with E900

RouterOS Wireless Networking
1

hi… i have the following setup :

{ISP ROUTER} <—ETHERNET—> {SXT} <—WIRELESS— > {SXT} <—ETHERNET—> {Cisco E900}


Both the SXT have level 3 license and working in Bridge and Station Bridge mode with IP 192.168.1.11 & 192.168.1.12

the Station Bridge (192.168.1.12) SXT has been plugged with an Ethernet cable into a CISCO E900. the CISCO E900 is put in the bridge mode and the Ethernet cable from SXT is plugged into the INTERNET port of the CISCO E900.

Cisco E900 has an IP 192.168.1.17

it started workin after configuring it… but after it is switched off and switched on again it stops responding.

i tried everything but this above condition is still there. please do help me with what needs to be done?

basically i am not able to cascade…the E900

2

Which device stopped responding? Did you tried to troubleshoot using ping and trace-route?

3

the exact problem is as below.

when the Ethernet cable from SXT is plugged into a single computer it gets an IP from the gateway router.

when the same cable is plugged into a WiFi AP (Cisco E900) or a simple 24 port switch and the computer into the same AP/Switch it fails to get an IP from the gateway router.

why is the SXT bridge working when used with a single computer and fails when trying to use with a network device in between ?

4

kirshteins / normis… guys any idea why is this happening??

help!!!

5

please help!!!

6

now i have started feeling like " I, ME, MYSELF " all the way on this forum :slight_smile:

guys… this is a very weired problem which i have come across the first time.

Problem with 2 SXT's and Ptp Bridge
7

Post /export compact from each of your SXTs and we can look to see if there is a problem in your config.

8

========================================================================
B R I D G E

mar/22/2013 08:46:41 by RouterOS 6.0rc9

software id = GFBM-39Z7

/interface bridge
add l2mtu=1598 name=bridge1
/interface wireless
set 0 band=5ghz-a/n channel-width=20/40mhz-ht-below disabled=no ht-basic-mcs="mc
s-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7,mcs-8,mcs-9,mcs-10,mcs-11,mcs-
12,mcs-13,mcs-14,mcs-15,mcs-16,mcs-17,mcs-18,mcs-19,mcs-20,mcs-21,mcs-22,mcs
-23" ht-rxchains=0,1 ht-txchains=0,1 l2mtu=2290 mode=bridge rate-set=
configured ssid=URVIWAVE tx-power=18 tx-power-mode=all-rates-fixed
wireless-protocol=nv2
/interface wireless security-profiles
set [ find default=yes ] authentication-types=wpa2-psk eap-methods=passthrough
mode=dynamic-keys supplicant-identity=URVIWAVE wpa2-pre-shared-key=
grandmaster
/ip hotspot user profile
set [ find default=yes ] idle-timeout=none keepalive-timeout=2m
/user group
add name=usergroup policy="local,ftp,reboot,read,write,test,password,web,sniff,s
ensitive,api,!telnet,!ssh,!policy,!winbox" skin=userskin
/interface bridge port
add bridge=bridge1 interface=ether1
add bridge=bridge1 interface=wlan1
/ip address
add address=192.168.1.11/24 interface=bridge1 network=192.168.1.0
/ip dhcp-client
add default-route-distance=0 dhcp-options=hostname,clientid disabled=no
interface=bridge1
/ip dns
set allow-remote-requests=yes
/ip route
add distance=1 gateway=bridge1
add distance=1 gateway=192.168.1.1
/ip service
set telnet port=2324
set api disabled=no port=8730
set winbox port=8293
/snmp
set contact=Godown_Bridge enabled=yes location=Godown_Bridge trap-community=
public
/system clock manual
set time-zone=+05:30
/system identity
set name=URVIWAVE_GODOWN_BRIDGE
/system leds
set 0 interface=wlan1
set 1 interface=ether1
/system ntp client
set enabled=yes mode=unicast primary-ntp=202.71.140.36 secondary-ntp=
140.109.1.10

========================================================================
S T A T I O N B R I D G E


\

mar/20/2013 22:55:22 by RouterOS 6.0rc9

software id = GX8I-LN77

/interface bridge
add l2mtu=1598 name=bridge1
/interface wireless
set 0 band=5ghz-a/n channel-width=20/40mhz-ht-below disabled=no ht-basic-mcs="
mcs-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7,mcs-8,mcs-9,mcs-10,mcs-11,
mcs-12,mcs-13,mcs-14,mcs-15,mcs-16,mcs-17,mcs-18,mcs-19,mcs-20,mcs-21,mcs-
22,mcs-23" ht-rxchains=0,1 ht-txchains=0,1 l2mtu=2290 mode=station-bridge
rate-set=configured ssid=URVIWAVE wireless-protocol=nv2
/interface wireless security-profiles
set [ find default=yes ] authentication-types=wpa2-psk eap-methods=
passthrough mode=dynamic-keys supplicant-identity=URVIWAVE
wpa2-pre-shared-key=grandmaster
/ip hotspot user profile
set [ find default=yes ] idle-timeout=none keepalive-timeout=2m
/user group
add name=usergroup policy="local,telnet,ssh,ftp,reboot,read,write,test,passwor
d,web,sniff,sensitive,api,!policy,!winbox" skin=userskin
/interface bridge port
add bridge=bridge1 interface=ether1
add bridge=bridge1 interface=wlan1
/ip address
add address=192.168.1.12/24 interface=bridge1 network=192.168.1.0
add address=192.168.1.33/24 interface=ether1 network=192.168.1.0
/ip dhcp-client
add default-route-distance=0 dhcp-options=hostname,clientid disabled=no
interface=bridge1
/ip dns
set allow-remote-requests=yes
/ip route
add distance=1 gateway=bridge1
add distance=1 gateway=192.168.1.1
/ip service
set api disabled=no port=8731
set winbox port=8294
/snmp
set contact=Godown_Station enabled=yes location=Godown_Station
trap-community=public
/system clock manual
set time-zone=+05:30
/system identity
set name=URVIWAVE_GODOWN_STATION
/system leds
set 0 disabled=yes interface=wlan1
set 1 disabled=yes interface=ether1
/system ntp client
set enabled=yes mode=unicast primary-ntp=123.108.200.163 secondary-ntp=
140.109.1.10

9

I think this setting is wrong, ether1 is part of bridge1, don’t set an ip on it.

add address=192.168.1.33/24 interface=ether1 network=192.168.1.0

10

this connection works when using with single pc

when the same cable connected to any dumb switch with multiple ethernet ports it stops working.

11

/ip route
add distance=1 gateway=bridge1

Why do you have this on both sides?

12

without that the NTP servers are not accessible… for the routerboard time…

now I have setup a MPLS transparent link using → http://wiki.mikrotik.com/wiki/Transparently_Bridge_two_Networks_using_MPLS

should i post that config output here??

13

is this not funny…

i replaced the cable and everything started working just fine…

how come the first cable was working only for a single machine and failed to work when plugged into a switch??

and now replacing the cable it has started to working perfectly even in a switch?