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Recurring PPPoE connection terminations

Hello everyone, I hope you can help me. These are the first Sophos firewalls I'm configuring.

I have the following hardware constellation: The Draytek Vigor 165 is used as a pure VDSL modem in full bridged mode, connected to it is a XG 115 rev. 3 with the current SFOS 18.0.0 GA-Build379. The Sophos dials in via PPPoE to the internet provider, which works, at least for a not clearly defined time. Then the connection is terminated and the Sophos redials. The whole thing happens at very different times.
It worked last weekend, but as soon as you start working on the network again, the connection is lost again. There may be up to 10 or more new dialins per day. This behavior occurs at all three locations with two different ISPs.

I have adjusted the MTU value to 1492 according to the provider. The following is an excerpt from the networkd.log

 

ip_choose_hook is NULL
Plugin /lib/rp-pppoe.so loaded.
RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
pppd 2.4.7 started by root, uid 0
Interface Port2 has MTU of 1492 -- should be at least 1500.
This may cause serious connection problems.
Timeout waiting for PADO packets
Unable to complete PPPoE Discovery
Exit.
garner: failed to read greetings from garner: after retrying 3 times
garner: failed to read greetings from garner: Resource temporarily unavailable
INFO ; May 19 06:34:48 ; SYSTEM ; CHILD ; Checking child 'Port2_ipv4pppoec'....DEAD;
WARNING ; May 19 06:34:48 ; SYSTEM ; IPV4 ; Child 'Port2_ipv4pppoec' is dead. Restarting it...;
INFO ; May 19 06:34:48 ; SYSTEM ; CHILD ; child: Port2_ipv4pppoec: failure_time_diff=61;
INFO ; May 19 06:34:48 ; SYSTEM ; CHILD ; Restarting child;
INFO ; May 19 06:34:48 ; SYSTEM ; CHILD ; Child 'Port2_ipv4pppoec' is Running now....;
ip_choose_hook is NULL
Plugin /lib/rp-pppoe.so loaded.
RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
pppd 2.4.7 started by root, uid 0
Interface Port2 has MTU of 1492 -- should be at least 1500.
This may cause serious connection problems.
Timeout waiting for PADO packets
Unable to complete PPPoE Discovery
Exit.
INFO ; May 19 06:35:48 ; SYSTEM ; CHILD ; Checking child 'Port2_ipv4pppoec'....DEAD;
WARNING ; May 19 06:35:48 ; SYSTEM ; IPV4 ; Child 'Port2_ipv4pppoec' is dead. Restarting it...;
INFO ; May 19 06:35:48 ; SYSTEM ; CHILD ; child: Port2_ipv4pppoec: failure_time_diff=60;
INFO ; May 19 06:35:48 ; SYSTEM ; CHILD ; Restarting child;
INFO ; May 19 06:35:48 ; SYSTEM ; CHILD ; Child 'Port2_ipv4pppoec' is Running now....;
ip_choose_hook is NULL
Plugin /lib/rp-pppoe.so loaded.
RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
pppd 2.4.7 started by root, uid 0
Interface Port2 has MTU of 1492 -- should be at least 1500.
This may cause serious connection problems.
PPP session is 617
Connected to 00:31:46:06:5b:d1 via interface Port2
Using interface Port2_ppp
Connect: Port2_ppp <--> Port2
Remote message: SRU=38890#SRD=105648#
PAP authentication succeeded
peer from calling number 00:31:46:06:5B:D1 authorized
Failed to create /etc/ppp/resolv.conf: Read-only file system
local IP address 91.32.186.213
remote IP address 62.155.244.78
primary DNS address 217.237.148.70
secondary DNS address 217.237.150.115
WARNING ; May 19 06:35:53 ; SYSTEM ; JSON_PARSOR ; Unable to find handler for key: if_config;
INFO ; May 19 06:35:53 ; SYSTEM ; LINK ; ;
INFO ; May 19 06:35:53 ; SYSTEM ; LINK ; interface = Port2;
INFO ; May 19 06:35:53 ; SYSTEM ; LINK ; zonetype = 2;
INFO ; May 19 06:35:53 ; SYSTEM ; LINK ; zoneid = 2;
INFO ; May 19 06:35:53 ; SYSTEM ; LINK ; gatewayid = 1;
INFO ; May 19 06:35:53 ; SYSTEM ; LINK ; gatewayid6 = 0;
INFO ; May 19 06:35:53 ; SYSTEM ; LINK ; enabled = Yes;
INFO ; May 19 06:35:53 ; SYSTEM ; LINK ; linktype = Physical;
INFO ; May 19 06:35:53 ; SYSTEM ; LINK ; mtu = 1492;
INFO ; May 19 06:35:53 ; SYSTEM ; LINK ; mss = 0;
INFO ; May 19 06:35:53 ; SYSTEM ; LINK ; interface_speed = none;
INFO ; May 19 06:35:53 ; SYSTEM ; LINK ; mac-address = (null);
INFO ; May 19 06:35:53 ; SYSTEM ; LINK ; parent_ifname = ;
INFO ; May 19 06:35:53 ; SYSTEM ; LINK ; system interface = Port2_ppp;
INFO ; May 19 06:35:53 ; SYSTEM ; LINK ; master = ;
INFO ; May 19 06:35:53 ; SYSTEM ; IP ; Total Interface = 0;
INFO ; May 19 06:35:53 ; SYSTEM ; NEIGH ; Total Interface = 0;
INFO ; May 19 06:35:53 ; SYSTEM ; DHCPRELAY ; Total Interface = 0;
INFO ; May 19 06:35:53 ; SYSTEM ; LINK_PHYSICAL ; set system interface 'Port2_ppp';
INFO ; May 19 06:35:53 ; SYSTEM ; LINK_COMMON ; ioctl: interface 'Port2_ppp' group '2';
INFO ; May 19 06:35:53 ; SYSTEM ; LINK_COMMON ; ioctl: interface 'Port2_ppp' nettype '2';
INFO ; May 19 06:35:53 ; SYSTEM ; LINK_COMMON ; ioctl: interface 'Port2_ppp' gateway '32769';
INFO ; May 19 06:35:53 ; SYSTEM ; LINK_COMMON ; ioctl: interface 'Port2_ppp' gateway '0';
WARNING ; May 19 06:35:53 ; SYSTEM ; IP ; Not Found any data for IP.;
INFO ; May 19 06:35:53 ; SYSTEM ; ND_MAIN ; time taken for do_nd_action is 0.000000.;
INFO ; May 19 06:35:53 ; SYSTEM ; ND_MAIN ; sending reply: 0;

 

 

I would be very grateful for help or tips. If you need more logs I can provide them.



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  • Hello,

    first of all you can let 1500 as MTU, sophos will ajust it implicitelly when you configure PPPOE.

    Do you see lost of DSL synchronisation on the modem ?

  • Ok, then I change the MTU value back to 1500. DSL sync is stable.

  • Also, please upgrade to v18 354 0r the later.

    Ian

  • Sorry this was my fault, the SFOS 18.0.0 GA-Build379 is already installed.

  • Unfortunately, the problem still exists. According to the ISP, the signal coming in is fine. But the LCP timeouts don't have to have anything to do with the ISP's signal, do they?

     

    Here is a something from the system log:

    May 24 04:49:35 (none) daemon.info pppd[10428]: Port2: No response to 5 echo-requests
    May 24 04:49:35 (none) daemon.notice pppd[10428]: Port2: Serial link appears to be disconnected.
    May 24 04:49:35 (none) daemon.info pppd[10428]: Port2: Connect time 12.5 minutes.
    May 24 04:49:35 (none) daemon.info pppd[10428]: Port2: Sent 8520303 bytes, received 510730 bytes.
    May 24 04:49:40 (none) daemon.err down_tunnels_on_iface(): down all connection using interface '3' and op ''
    May 24 04:49:41 (none) daemon.notice pppd[10428]: Port2: Connection terminated.
    May 24 04:49:41 (none) daemon.notice pppd[10428]: Port2: Modem hangup
    May 24 04:49:46 (none) daemon.info pppd[10428]: Port2: Exit.
    May 24 04:49:46 (none) daemon.warn pppd[13432]: : ip_choose_hook is NULL
    May 24 04:49:46 (none) daemon.info pppd[13432]: : Plugin /lib/rp-pppoe.so loaded.
    May 24 04:49:46 (none) daemon.info pppd[13432]: : RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
    May 24 04:49:46 (none) daemon.notice pppd[13432]: Port2: pppd 2.4.7 started by root, uid 0
    May 24 04:49:46 (none) daemon.err pppd[13432]: Port2: Interface Port2 has MTU of 1492 -- should be at least 1500.
    May 24 04:49:46 (none) daemon.err pppd[13432]: Port2: This may cause serious connection problems.
    May 24 04:49:51 (none) daemon.info pppd[13432]: Port2: PPP session is 961
    May 24 04:49:51 (none) daemon.warn pppd[13432]: Port2: Connected to 00:31:46:06:5b:d1 via interface Port2
    May 24 04:49:51 (none) user.info kernel: [155206.962054] Port2_ppp: renamed from ppp0
    May 24 04:49:51 (none) daemon.info pppd[13432]: Port2: Using interface Port2_ppp
    May 24 04:49:51 (none) daemon.notice pppd[13432]: Port2: Connect: Port2_ppp <--> Port2
    May 24 04:49:51 (none) daemon.info pppd[13432]: Port2: Remote message: SRU=30131#SRD=103578#
    May 24 04:49:51 (none) daemon.notice pppd[13432]: Port2: PAP authentication succeeded
    May 24 04:49:51 (none) daemon.notice pppd[13432]: Port2: peer from calling number 00:31:46:06:5B:D1 authorized
    May 24 04:49:51 (none) daemon.err pppd[13432]: Port2: Failed to create /etc/ppp/resolv.conf: Read-only file system
    May 24 04:49:51 (none) daemon.notice pppd[13432]: Port2: local IP address 91.32.187.12
    May 24 04:49:51 (none) daemon.notice pppd[13432]: Port2: remote IP address 62.155.244.78
    May 24 04:49:51 (none) daemon.notice pppd[13432]: Port2: primary DNS address 217.237.148.70
    May 24 04:49:51 (none) daemon.notice pppd[13432]: Port2: secondary DNS address 217.237.150.115
    May 24 04:49:59 (none) daemon.err up_tunnels_on_id(): Making connections on interfaceid 3 up or add (as per their auto= configuration)
    May 24 05:04:52 (none) daemon.info pppd[13432]: Port2: No response to 5 echo-requests
    May 24 05:04:52 (none) daemon.notice pppd[13432]: Port2: Serial link appears to be disconnected.
    May 24 05:04:52 (none) daemon.info pppd[13432]: Port2: Connect time 15.1 minutes.
    May 24 05:04:52 (none) daemon.info pppd[13432]: Port2: Sent 9618305 bytes, received 577303 bytes.
    May 24 05:04:57 (none) daemon.err down_tunnels_on_iface(): down all connection using interface '3' and op ''
    May 24 05:04:58 (none) daemon.notice pppd[13432]: Port2: Connection terminated.
    May 24 05:04:58 (none) daemon.notice pppd[13432]: Port2: Modem hangup
    May 24 05:05:03 (none) daemon.info pppd[13432]: Port2: Exit.
    May 24 05:05:03 (none) daemon.warn pppd[16806]: : ip_choose_hook is NULL
    May 24 05:05:03 (none) daemon.info pppd[16806]: : Plugin /lib/rp-pppoe.so loaded.
    May 24 05:05:03 (none) daemon.info pppd[16806]: : RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
    May 24 05:05:03 (none) daemon.notice pppd[16806]: Port2: pppd 2.4.7 started by root, uid 0
    May 24 05:05:03 (none) daemon.err pppd[16806]: Port2: Interface Port2 has MTU of 1492 -- should be at least 1500.
    May 24 05:05:03 (none) daemon.err pppd[16806]: Port2: This may cause serious connection problems.
    May 24 05:05:13 (none) daemon.info pppd[16806]: Port2: PPP session is 961
    May 24 05:05:13 (none) daemon.warn pppd[16806]: Port2: Connected to 00:31:46:06:5b:d1 via interface Port2
    May 24 05:05:13 (none) user.info kernel: [156129.165225] Port2_ppp: renamed from ppp0
    May 24 05:05:13 (none) daemon.info pppd[16806]: Port2: Using interface Port2_ppp
    May 24 05:05:13 (none) daemon.notice pppd[16806]: Port2: Connect: Port2_ppp <--> Port2
    May 24 05:05:13 (none) daemon.info pppd[16806]: Port2: Remote message: SRU=30131#SRD=103578#
    May 24 05:05:13 (none) daemon.notice pppd[16806]: Port2: PAP authentication succeeded
    May 24 05:05:13 (none) daemon.notice pppd[16806]: Port2: peer from calling number 00:31:46:06:5B:D1 authorized
    May 24 05:05:13 (none) daemon.err pppd[16806]: Port2: Failed to create /etc/ppp/resolv.conf: Read-only file system
    May 24 05:05:13 (none) daemon.notice pppd[16806]: Port2: local IP address 87.184.239.203
    May 24 05:05:13 (none) daemon.notice pppd[16806]: Port2: remote IP address 62.155.244.78
    May 24 05:05:13 (none) daemon.notice pppd[16806]: Port2: primary DNS address 217.237.148.70
    May 24 05:05:13 (none) daemon.notice pppd[16806]: Port2: secondary DNS address 217.237.150.115
    May 24 05:05:21 (none) daemon.err up_tunnels_on_id(): Making connections on interfaceid 3 up or add (as per their auto= configuration)
    May 24 05:19:14 (none) daemon.info pppd[16806]: Port2: No response to 5 echo-requests
    May 24 05:19:14 (none) daemon.notice pppd[16806]: Port2: Serial link appears to be disconnected.
    May 24 05:19:14 (none) daemon.info pppd[16806]: Port2: Connect time 14.1 minutes.
    May 24 05:19:14 (none) daemon.info pppd[16806]: Port2: Sent 9068149 bytes, received 779787 bytes.
    May 24 05:19:19 (none) daemon.err down_tunnels_on_iface(): down all connection using interface '3' and op ''
    May 24 05:19:20 (none) daemon.notice pppd[16806]: Port2: Connection terminated.
    May 24 05:19:20 (none) daemon.notice pppd[16806]: Port2: Modem hangup
    May 24 05:19:24 (none) daemon.info pppd[16806]: Port2: Exit.
    May 24 05:19:24 (none) daemon.warn pppd[19917]: : ip_choose_hook is NULL
    May 24 05:19:24 (none) daemon.info pppd[19917]: : Plugin /lib/rp-pppoe.so loaded.
    May 24 05:19:24 (none) daemon.info pppd[19917]: : RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
    May 24 05:19:24 (none) daemon.notice pppd[19917]: Port2: pppd 2.4.7 started by root, uid 0
    May 24 05:19:24 (none) daemon.err pppd[19917]: Port2: Interface Port2 has MTU of 1492 -- should be at least 1500.
    May 24 05:19:24 (none) daemon.err pppd[19917]: Port2: This may cause serious connection problems.
    May 24 05:19:25 (none) daemon.info pppd[19917]: Port2: PPP session is 964
    May 24 05:19:25 (none) daemon.warn pppd[19917]: Port2: Connected to 00:31:46:06:5b:d1 via interface Port2
    May 24 05:19:25 (none) user.info kernel: [156981.157152] Port2_ppp: renamed from ppp0
    May 24 05:19:25 (none) daemon.info pppd[19917]: Port2: Using interface Port2_ppp
    May 24 05:19:25 (none) daemon.notice pppd[19917]: Port2: Connect: Port2_ppp <--> Port2
    May 24 05:19:28 (none) daemon.info pppd[19917]: Port2: Remote message: SRU=30131#SRD=103578#
    May 24 05:19:28 (none) daemon.notice pppd[19917]: Port2: PAP authentication succeeded
    May 24 05:19:28 (none) daemon.notice pppd[19917]: Port2: peer from calling number 00:31:46:06:5B:D1 authorized
    May 24 05:19:28 (none) daemon.err pppd[19917]: Port2: Failed to create /etc/ppp/resolv.conf: Read-only file system
    May 24 05:19:28 (none) daemon.notice pppd[19917]: Port2: local IP address 87.184.232.195
    May 24 05:19:28 (none) daemon.notice pppd[19917]: Port2: remote IP address 62.155.244.78
    May 24 05:19:28 (none) daemon.notice pppd[19917]: Port2: primary DNS address 217.237.148.70
    May 24 05:19:28 (none) daemon.notice pppd[19917]: Port2: secondary DNS address 217.237.150.115

  • Hi Lukas,

    the log report shows your MTU is wrong and could be causing your issue?

    Ian

  • Hi rfcat_vk,

     

    thanks for your tip, but after adjusting the MTU still the same, even worse. This is from networkd.log:

    WARNING ; May 24 19:09:26 ; SYSTEM ; IP ; Not Found any data for IP.;
    INFO ; May 24 19:09:26 ; SYSTEM ; ND_MAIN ; time taken for do_nd_action is 0.000000.;
    INFO ; May 24 19:09:26 ; SYSTEM ; ND_MAIN ; sending reply: 0;
    No response to 5 echo-requests
    Serial link appears to be disconnected.
    Connect time 7.0 minutes.
    Sent 5333612 bytes, received 507569 bytes.
    WARNING ; May 24 19:16:26 ; SYSTEM ; JSON_PARSOR ; Unable to find handler for key: if_config;
    INFO ; May 24 19:16:26 ; SYSTEM ; LINK ; ;
    INFO ; May 24 19:16:26 ; SYSTEM ; LINK ; interface = Port2;
    INFO ; May 24 19:16:26 ; SYSTEM ; LINK ; zonetype = 2;
    INFO ; May 24 19:16:26 ; SYSTEM ; LINK ; zoneid = 2;
    INFO ; May 24 19:16:26 ; SYSTEM ; LINK ; gatewayid = 1;
    INFO ; May 24 19:16:26 ; SYSTEM ; LINK ; gatewayid6 = 0;
    INFO ; May 24 19:16:26 ; SYSTEM ; LINK ; enabled = Yes;
    INFO ; May 24 19:16:26 ; SYSTEM ; LINK ; linktype = Physical;
    INFO ; May 24 19:16:26 ; SYSTEM ; LINK ; mtu = 1500;
    INFO ; May 24 19:16:26 ; SYSTEM ; LINK ; mss = 0;
    INFO ; May 24 19:16:26 ; SYSTEM ; LINK ; interface_speed = none;
    INFO ; May 24 19:16:26 ; SYSTEM ; LINK ; mac-address = (null);
    INFO ; May 24 19:16:26 ; SYSTEM ; LINK ; parent_ifname = ;
    INFO ; May 24 19:16:26 ; SYSTEM ; LINK ; system interface = Port2_ppp;
    INFO ; May 24 19:16:26 ; SYSTEM ; LINK ; master = ;
    INFO ; May 24 19:16:26 ; SYSTEM ; IP ; Total Interface = 0;
    INFO ; May 24 19:16:26 ; SYSTEM ; NEIGH ; Total Interface = 0;
    INFO ; May 24 19:16:26 ; SYSTEM ; DHCPRELAY ; Total Interface = 0;
    WARNING ; May 24 19:16:26 ; SYSTEM ; LINK_PHYSICAL ; custome action '(null)' is not supported for interface 'Port2';
    WARNING ; May 24 19:16:26 ; SYSTEM ; IP ; Not Found any data for IP.;
    INFO ; May 24 19:16:26 ; SYSTEM ; ND_MAIN ; time taken for do_nd_action is 0.000000.;
    INFO ; May 24 19:16:26 ; SYSTEM ; ND_MAIN ; sending reply: 0;
    Connection terminated.
    Modem hangup

     

    And this is from systemlog:

    May 24 19:01:09 (none) daemon.notice pppd[16029]: Port2: Connect: Port2_ppp <--> Port2
    May 24 19:01:10 (none) daemon.info pppd[16029]: Port2: Remote message: SRU=30131#SRD=98800#
    May 24 19:01:10 (none) daemon.notice pppd[16029]: Port2: PAP authentication succeeded
    May 24 19:01:10 (none) daemon.notice pppd[16029]: Port2: peer from calling number 00:31:46:06:5B:D1 authorized
    May 24 19:01:10 (none) daemon.err pppd[16029]: Port2: Failed to create /etc/ppp/resolv.conf: Read-only file system
    May 24 19:01:10 (none) daemon.notice pppd[16029]: Port2: local IP address 91.32.184.252
    May 24 19:01:10 (none) daemon.notice pppd[16029]: Port2: remote IP address 62.155.244.78
    May 24 19:01:10 (none) daemon.notice pppd[16029]: Port2: primary DNS address 217.237.148.70
    May 24 19:01:10 (none) daemon.notice pppd[16029]: Port2: secondary DNS address 217.237.150.115
    May 24 19:01:17 (none) daemon.err up_tunnels_on_id(): Making connections on interfaceid 3 up or add (as per their auto= configuration)
    May 24 19:04:40 (none) daemon.info pppd[16029]: Port2: No response to 5 echo-requests
    May 24 19:04:40 (none) daemon.notice pppd[16029]: Port2: Serial link appears to be disconnected.
    May 24 19:04:40 (none) daemon.info pppd[16029]: Port2: Connect time 3.5 minutes.
    May 24 19:04:40 (none) daemon.info pppd[16029]: Port2: Sent 2333625 bytes, received 171946 bytes.
    May 24 19:04:45 (none) daemon.err down_tunnels_on_iface(): down all connection using interface '3' and op ''
    May 24 19:04:46 (none) daemon.notice pppd[16029]: Port2: Connection terminated.
    May 24 19:04:46 (none) daemon.notice pppd[16029]: Port2: Modem hangup
    May 24 19:04:50 (none) daemon.info pppd[16029]: Port2: Exit.
    May 24 19:04:50 (none) daemon.warn pppd[17909]: : ip_choose_hook is NULL
    May 24 19:04:50 (none) daemon.info pppd[17909]: : Plugin /lib/rp-pppoe.so loaded.
    May 24 19:04:50 (none) daemon.info pppd[17909]: : RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
    May 24 19:04:50 (none) daemon.notice pppd[17909]: Port2: pppd 2.4.7 started by root, uid 0
    May 24 19:05:51 (none) daemon.warn pppd[17909]: Port2: Timeout waiting for PADO packets
    May 24 19:05:51 (none) daemon.err pppd[17909]: Port2: Unable to complete PPPoE Discovery
    May 24 19:05:51 (none) daemon.info pppd[17909]: Port2: Exit.
    May 24 19:05:51 (none) daemon.warn pppd[18336]: : ip_choose_hook is NULL
    May 24 19:05:51 (none) daemon.info pppd[18336]: : Plugin /lib/rp-pppoe.so loaded.
    May 24 19:05:51 (none) daemon.info pppd[18336]: : RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
    May 24 19:05:51 (none) daemon.notice pppd[18336]: Port2: pppd 2.4.7 started by root, uid 0
    May 24 19:06:51 (none) daemon.warn pppd[18336]: Port2: Timeout waiting for PADO packets
    May 24 19:06:51 (none) daemon.err pppd[18336]: Port2: Unable to complete PPPoE Discovery
    May 24 19:06:51 (none) daemon.info pppd[18336]: Port2: Exit.
    May 24 19:06:51 (none) daemon.warn pppd[18444]: : ip_choose_hook is NULL
    May 24 19:06:51 (none) daemon.info pppd[18444]: : Plugin /lib/rp-pppoe.so loaded.
    May 24 19:06:51 (none) daemon.info pppd[18444]: : RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
    May 24 19:06:51 (none) daemon.notice pppd[18444]: Port2: pppd 2.4.7 started by root, uid 0
    May 24 19:09:21 (none) daemon.warn pppd[18444]: Port2: Timeout waiting for PADS packets
    May 24 19:09:21 (none) daemon.err pppd[18444]: Port2: Unable to complete PPPoE Discovery
    May 24 19:09:21 (none) daemon.info pppd[18444]: Port2: Exit.
    May 24 19:09:21 (none) daemon.warn pppd[18671]: : ip_choose_hook is NULL
    May 24 19:09:21 (none) daemon.info pppd[18671]: : Plugin /lib/rp-pppoe.so loaded.
    May 24 19:09:21 (none) daemon.info pppd[18671]: : RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
    May 24 19:09:21 (none) daemon.notice pppd[18671]: Port2: pppd 2.4.7 started by root, uid 0
    May 24 19:09:21 (none) daemon.info pppd[18671]: Port2: PPP session is 984
    May 24 19:09:21 (none) daemon.warn pppd[18671]: Port2: Connected to 00:31:46:06:5b:d1 via interface Port2
    May 24 19:09:21 (none) user.info kernel: [206777.536714] Port2_ppp: renamed from ppp0
    May 24 19:09:21 (none) daemon.info pppd[18671]: Port2: Using interface Port2_ppp
    May 24 19:09:21 (none) daemon.notice pppd[18671]: Port2: Connect: Port2_ppp <--> Port2
    May 24 19:09:21 (none) daemon.info pppd[18671]: Port2: Remote message: SRU=30131#SRD=103578#
    May 24 19:09:21 (none) daemon.notice pppd[18671]: Port2: PAP authentication succeeded
    May 24 19:09:21 (none) daemon.notice pppd[18671]: Port2: peer from calling number 00:31:46:06:5B:D1 authorized
    May 24 19:09:22 (none) daemon.err pppd[18671]: Port2: Failed to create /etc/ppp/resolv.conf: Read-only file system
    May 24 19:09:22 (none) daemon.notice pppd[18671]: Port2: local IP address 91.32.187.236
    May 24 19:09:22 (none) daemon.notice pppd[18671]: Port2: remote IP address 62.155.244.78
    May 24 19:09:22 (none) daemon.notice pppd[18671]: Port2: primary DNS address 217.237.148.70
    May 24 19:09:22 (none) daemon.notice pppd[18671]: Port2: secondary DNS address 217.237.150.115
    May 24 19:09:29 (none) daemon.err up_tunnels_on_id(): Making connections on interfaceid 3 up or add (as per their auto= configuration)
    May 24 19:16:21 (none) daemon.info pppd[18671]: Port2: No response to 5 echo-requests
    May 24 19:16:21 (none) daemon.notice pppd[18671]: Port2: Serial link appears to be disconnected.
    May 24 19:16:21 (none) daemon.info pppd[18671]: Port2: Connect time 7.0 minutes.
    May 24 19:16:21 (none) daemon.info pppd[18671]: Port2: Sent 5333612 bytes, received 507569 bytes.
    May 24 19:16:27 (none) daemon.err down_tunnels_on_iface(): down all connection using interface '3' and op ''
    May 24 19:16:28 (none) daemon.notice pppd[18671]: Port2: Connection terminated.
    May 24 19:16:28 (none) daemon.notice pppd[18671]: Port2: Modem hangup
    May 24 19:16:32 (none) daemon.info pppd[18671]: Port2: Exit.

     

    apparently it always comes down to an lcp timeout as the cause.

  • Hi Lukas,

    maybe this line from your log is a hint?

    May 24 19:01:10 (none) daemon.err pppd[16029]: Port2: Failed to create /etc/ppp/resolv.conf: Read-only file system

    Looks like you have a problem with your filesystem?

    Ian

  • Hi rfcat_vk,

    I already did a complete reset after the update to SFOS v18. Do you have an idea how I can fix this?

  • Hi

    Unfortunately sophos XG as trouble to reconnect to PPPoe, in rare cases, after some times, and the only answer of support is "please reboot the device, we have no logs about why the XG does not try to reconnect enlessly the PPPoe session".

    As a result, interface state is disconnected and wait to manually reconnect or reboot the device.