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Internet outage every xx minutes

helmut willems

Hello

 

i'm new in the company and they have here installed 2 XG firewalls( HA )

 

Every XX minute there is a internet outage for the whole site , and after 30 -60 seconds internet is back , this repeats every time.

 

What i already see and tested 

If i ping google.com - t   before  the outage then it resolve the ip addres and have correct ping's

If i ping google.com -t  when there is a outage , it resolve the ip address but have time outs on the ping , when the internet come's back then i have correct pings

 

Also strange thing : if there is a internet outage on a  TS session , then it is possible that on the local machine there is no outage

It's never the whole site in once , but the most works on a TS-server so all the people who work on this machine have on the same time this problem.

 

The company who delivers the firewall can't also find the problem ( they told they take contact with sophos) and the situation like this is already more then a Year.

 

Someone a  idea where the problem could be ??



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  • 0 in reply to Vishal_R

    also when i do

    drop-packet-capture interface Port1 

    i see lots of drop packets but als ip addresses who call ip on other subnet (who don't exist at the campus)

     

    2019-12-02 15:09:41 0544021 IP 10.0.0.213.61400 > 192.168.1.16.55855 : proto UDP: packet len: 60 checksum : 905
    0x0000: 4500 0050 81c4 0000 8011 ec4b 0a00 00d5 E..P.......K....
    0x0010: c0a8 0110 efd8 da2f 003c 0389 6000 0000 ......./.<..`...
    0x0020: 0000 3b15 2001 0000 2851 7ae4 287e 1027 ..;.....(Qz.(~.'
    0x0030: ab38 f845 2001 0000 2851 7ae4 28c8 25d0 .8.E....(Qz.(.%.
    0x0040: 9277 1664 0104 e738 82fb 0404 0100 0000 .w.d...8........
    Date=2019-12-02 Time=15:09:41 log_id=0544021 log_type=Content_Filter log_component=Application_Filter log_subtype=Denied log_status=N/A log_priority=Alert duration=N/A in_dev=Port1 out_dev= inzone_id=1 outzone_id=2 source_mac=f4:d1:08:59:a4:25 dest_mac=00:e0:20:11:0a:36 l3_protocol=IP source_ip=10.0.0.213 dest_ip=192.168.1.16 l4_protocol=UDP source_port=61400 dest_port=55855 fw_rule_id=1 policytype=1 live_userid=10556 userid=136 user_gp=11 ips_id=1 sslvpn_id=0 web_filter_id=4 hotspot_id=0 hotspotuser_id=0 hb_src=0 hb_dst=0 dnat_done=0 proxy_flags=0 icap_id=0 app_filter_id=7 app_category_id=7 app_id=50 category_id=0 bandwidth_id=0 up_classid=0 dn_classid=0 source_nat_id=1 cluster_node=0 inmark=0x0 nfqueue=253 scanflags=88 gateway_offset=1 max_session_bytes=0 drop_fix=0 ctflags=33554698 connid=1555927344 masterid=0 status=264 state=0 sent_pkts=N/A recv_pkts=N/A sent_bytes=N/A recv_bytes=N/A tran_src_ip=N/A tran_src_port=N/A tran_dst_ip=N/A tran_dst_port=N/A

    2019-12-02 15:09:41 0544021 IP 10.0.0.213.61400 > 109.136.233.155.55855 : proto UDP: packet len: 60 checksum : 28189
    0x0000: 4500 0050 8bf7 0000 8011 4cad 0a00 00d5 E..P......L.....
    0x0010: 6d88 e99b efd8 da2f 003c 6e1d 6000 0000 m....../.<n.`...
    0x0020: 0000 3b15 2001 0000 2851 7ae4 287e 1027 ..;.....(Qz.(~.'
    0x0030: ab38 f845 2001 0000 2851 7ae4 28c8 25d0 .8.E....(Qz.(.%.
    0x0040: 9277 1664 0104 e738 82fb 0404 0100 0000 .w.d...8........
    Date=2019-12-02 Time=15:09:41 log_id=0544021 log_type=Content_Filter log_component=Application_Filter log_subtype=Denied log_status=N/A log_priority=Alert duration=N/A in_dev=Port1 out_dev= inzone_id=1 outzone_id=2 source_mac=f4:d1:08:59:a4:25 dest_mac=00:e0:20:11:0a:36 l3_protocol=IP source_ip=10.0.0.213 dest_ip=109.136.233.155 l4_protocol=UDP source_port=61400 dest_port=55855 fw_rule_id=1 policytype=1 live_userid=10556 userid=136 user_gp=11 ips_id=1 sslvpn_id=0 web_filter_id=4 hotspot_id=0 hotspotuser_id=0 hb_src=0 hb_dst=0 dnat_done=0 proxy_flags=0 icap_id=0 app_filter_id=7 app_category_id=7 app_id=50 category_id=0 bandwidth_id=0 up_classid=0 dn_classid=0 source_nat_id=1 cluster_node=0 inmark=0x0 nfqueue=253 scanflags=88 gateway_offset=1 max_session_bytes=0 drop_fix=0 ctflags=33554698 connid=1998453632 masterid=0 status=264 state=0 sent_pkts=N/A recv_pkts=N/A sent_bytes=N/A recv_bytes=N/A tran_src_ip=N/A tran_src_port=N/A tran_dst_ip=N/A tran_dst_port=N/A