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Unable to Connect to Internet

Kha Lev

Hi. I am writing this question because I am a bit new to using Sophos Machines. 

I have a modem from a local ISP there was a time when I disconnected the UTP cable from the modem to the Sophos and transferred it from another location but after I put back those utp cables, there was no internet connection on the computers connected to the network. I directly connected the laptop to the modem and was connected to the internet but when I connected the laptop to the Sophos, there is no internet. I checked all the cables in all of them are working. It's just that the Sophos Machine has no connection.

It shows in the Dashboard that eth1 DSL(PPPoE) Down. What Should I do?



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  • 0

    Hi,

    What is the firmware version on UTM? Does the UTM have the Masquerading rule and a FW-rule in place to NAT and route the traffic out in the WAN?

    Post few lines from the firewall logs and check the thread here if you affected by the default MTU value issue.

    Thanks

    Sachin Gurung
    Team Lead | Sophos Technical Support
    Knowledge Base  |  @SophosSupport  |  Video tutorials
    Remember to like a post.  If a post (on a question thread) solves your question use the 'This helped me' link.

  • 0 in reply to sachingurung

    Firmware version: 9.319-5. Yes it does. Everything is working until I pulled out the utp cable connected from the modem and after I put it back, everything is a mess. 

    08:56:59 Default DROP IGMP  
    192.168.0.1    
    		→
    224.0.0.1    
    		 
    len=32 ttl=1 tos=0x00 srcmac=64:66:b3:cf:b9:5a dstmac=00:1a:8c:4b:0f:c8
    08:58:27 Default DROP IGMP  
    192.168.1.1    
    		→
    224.0.0.1    
    		 
    len=32 ttl=1 tos=0x00 srcmac=5c:f4:ab:34:1a:27 dstmac=00:1a:8c:4b:0f:c9
    08:59:04 Default DROP IGMP  
    192.168.0.1    
    		→
    224.0.0.1    
    		 
    len=32 ttl=1 tos=0x00 srcmac=64:66:b3:cf:b9:5a dstmac=00:1a:8c:4b:0f:c8
    09:00:32 Default DROP IGMP  
    192.168.1.1    
    		→
    224.0.0.1    
    		 
    len=32 ttl=1 tos=0x00 srcmac=5c:f4:ab:34:1a:27 dstmac=00:1a:8c:4b:0f:c9
     
    This is from my firewall logs. 
     
  • 0 in reply to Kha Lev

    Hi, and welcome to the UTM Community!

    Alone among the logs, the Firewall Live Log presents abbreviated information in a format easier to read quickly.  Usually, you can't troubleshoot without looking at the corresponding line from the full Firewall log file.  Please post one line corresponding to those above.

    Cheers - Bob

     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
Reply
  • 0 in reply to Kha Lev

    Hi, and welcome to the UTM Community!

    Alone among the logs, the Firewall Live Log presents abbreviated information in a format easier to read quickly.  Usually, you can't troubleshoot without looking at the corresponding line from the full Firewall log file.  Please post one line corresponding to those above.

    Cheers - Bob

     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
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