I'm tracing a problem that has me quite perplexed and I'm hoping that someone may have some insight into it.
I have an EdgeRouter X 5-port connecting through a VPN to a Sonicwall 220. The VPN looks to be up and running, has been for quite a while. Network communications between the two networks is stable, file transfers, applications, web sites, authentication, etc. All as expected.
Except for long running connections. They disconnect every 20 minutes, consistently. If I have an ssh session connected to a server located on the other side of the VPN, it'll disconnect every 20 minutes. Here's a simple shell script that shows the problem:
#! /bin/sh
while [ 1 ]; do
ssh -n 192.168.3.4 "sleep 28800"
date
doneThe output looks like:
Fri, Jul 01, 2016 8:12:10 AM
Connection reset by 192.168.3.4 port 22
Fri, Jul 01, 2016 8:32:15 AM
Connection reset by 192.168.3.4 port 22
Fri, Jul 01, 2016 8:52:18 AM
Connection reset by 192.168.3.4 port 22
Fri, Jul 01, 2016 9:12:21 AM
Connection reset by 192.168.3.4 port 22
Fri, Jul 01, 2016 9:32:24 AM
Connection reset by 192.168.3.4 port 22
Fri, Jul 01, 2016 9:52:30 AM
Connection reset by 192.168.3.4 port 22
Fri, Jul 01, 2016 10:12:33 AM
Connection reset by 192.168.3.4 port 22
Fri, Jul 01, 2016 10:32:35 AM
Here's the vpn log from the edgerouter:
Jun 30 17:11:08 13[KNL] creating rekey job for ESP CHILD_SA with SPI 693290a4 and reqid {8}
Jun 30 17:11:08 15[IKE] <peer-NN.N.NNN.NN-tunnel-1|130> CHILD_SA peer-NN.N.NNN.NN-tunnel-1{8} established with SPIs c7512791_i a83410a4_o and TS 192.168.3.0/24 === 192.168.1.0/24
Jun 30 17:11:18 05[IKE] <peer-NN.N.NNN.NN-tunnel-1|130> closing CHILD_SA peer-NN.N.NNN.NN-tunnel-1{8} with SPIs c64c4359_i (140524843 bytes) 693290a4_o (41307360 bytes) and TS 192.168.3.0/24 === 192.168.1.0/24
Jun 30 17:17:58 15[IKE] <peer-NN.N.NNN.NN-tunnel-1|130> reauthenticating IKE_SA peer-NN.N.NNN.NN-tunnel-1[130]
Jun 30 17:17:58 15[IKE] <peer-NN.N.NNN.NN-tunnel-1|130> initiating Main Mode IKE_SA peer-NN.N.NNN.NN-tunnel-1[131] to NN.N.NNN.NN
Jun 30 17:17:58 05[IKE] <peer-NN.N.NNN.NN-tunnel-1|131> IKE_SA peer-NN.N.NNN.NN-tunnel-1[131] established between 170.178.140.81[170.178.140.81]...NN.N.NNN.NN[NN.N.NNN.NN]
Jul 1 00:54:08 11[KNL] creating rekey job for ESP CHILD_SA with SPI a83410a4 and reqid {8}
Jul 1 00:54:08 15[IKE] <peer-NN.N.NNN.NN-tunnel-1|131> CHILD_SA peer-NN.N.NNN.NN-tunnel-1{8} established with SPIs c0d83b8e_i 133290a4_o and TS 192.168.3.0/24 === 192.168.1.0/24
Jul 1 00:54:18 05[IKE] <peer-NN.N.NNN.NN-tunnel-1|131> closing CHILD_SA peer-NN.N.NNN.NN-tunnel-1{8} with SPIs c7512791_i (60881089 bytes) a83410a4_o (35359060 bytes) and TS 192.168.3.0/24 === 192.168.1.0/24
Jul 1 01:05:40 10[IKE] <peer-NN.N.NNN.NN-tunnel-1|131> reauthenticating IKE_SA peer-NN.N.NNN.NN-tunnel-1[131]
Jul 1 01:05:40 10[IKE] <peer-NN.N.NNN.NN-tunnel-1|131> initiating Main Mode IKE_SA peer-NN.N.NNN.NN-tunnel-1[134] to NN.N.NNN.NN
Jul 1 01:05:40 13[IKE] <peer-NN.N.NNN.NN-tunnel-1|134> IKE_SA peer-NN.N.NNN.NN-tunnel-1[134] established between 170.178.140.81[170.178.140.81]...NN.N.NNN.NN[NN.N.NNN.NN]
Jul 1 08:37:54 12[KNL] creating rekey job for ESP CHILD_SA with SPI c0d83b8e and reqid {8}
Jul 1 08:37:54 05[IKE] <peer-NN.N.NNN.NN-tunnel-1|134> CHILD_SA peer-NN.N.NNN.NN-tunnel-1{8} established with SPIs cb1552e2_i 44ef10a4_o and TS 192.168.3.0/24 === 192.168.1.0/24
Jul 1 08:38:05 06[IKE] <peer-NN.N.NNN.NN-tunnel-1|134> closing CHILD_SA peer-NN.N.NNN.NN-tunnel-1{8} with SPIs c0d83b8e_i (76787290 bytes) 133290a4_o (29201212 bytes) and TS 192.168.3.0/24 === 192.168.1.0/24
Jul 1 08:53:37 08[IKE] <peer-NN.N.NNN.NN-tunnel-1|134> reauthenticating IKE_SA peer-NN.N.NNN.NN-tunnel-1[134]
Jul 1 08:53:37 08[IKE] <peer-NN.N.NNN.NN-tunnel-1|134> initiating Main Mode IKE_SA peer-NN.N.NNN.NN-tunnel-1[135] to NN.N.NNN.NN
Jul 1 08:53:38 06[IKE] <peer-NN.N.NNN.NN-tunnel-1|135> IKE_SA peer-NN.N.NNN.NN-tunnel-1[135] established between 170.178.140.81[170.178.140.81]...NN.N.NNN.NN[NN.N.NNN.NN]
Here's the edgerouter configuration:
firewall {
all-ping enable
broadcast-ping disable
ipv6-receive-redirects disable
ipv6-src-route disable
ip-src-route disable
log-martians enable
name WAN_IN {
default-action drop
description "WAN to internal"
rule 10 {
action accept
description "Allow established/related"
state {
established enable
related enable
}
}
rule 20 {
action drop
description "Drop invalid state"
state {
invalid enable
}
}
}
name WAN_LOCAL {
default-action drop
description "WAN to router"
rule 10 {
action accept
description "Allow established/related"
state {
established enable
related enable
}
}
rule 20 {
action drop
description "Drop invalid state"
state {
invalid enable
}
}
}
options {
mss-clamp {
mss 1412
}
}
receive-redirects disable
send-redirects enable
source-validation disable
syn-cookies enable
}
interfaces {
ethernet eth0 {
description "Internet (PPPoE)"
duplex auto
pppoe 0 {
default-route auto
firewall {
in {
name WAN_IN
}
local {
name WAN_LOCAL
}
}
mtu 1492
name-server auto
password ****************
user-id someuser
}
speed auto
}
ethernet eth1 {
address 192.168.203.1/24
description wifi
duplex auto
speed auto
}
ethernet eth2 {
description Local
duplex auto
speed auto
}
ethernet eth3 {
description Local
duplex auto
speed auto
}
ethernet eth4 {
description Local
duplex auto
speed auto
}
loopback lo {
}
switch switch0 {
address 192.168.3.1/24
description Local
mtu 1500
switch-port {
interface eth2
interface eth3
interface eth4
}
}
}
port-forward {
auto-firewall enable
hairpin-nat enable
lan-interface switch0
rule 1 {
description "ssh into n-monitor"
forward-to {
address 192.168.3.7
port 22
}
original-port 2222
protocol tcp_udp
}
wan-interface pppoe0
}
service {
dhcp-server {
disabled false
hostfile-update disable
shared-network-name network3 {
authoritative disable
subnet 192.168.3.0/24 {
default-router 192.168.3.1
dns-server 192.168.3.7
dns-server 192.168.1.2
domain-name ourdomain
lease 86400
start 192.168.3.200 {
stop 192.168.3.249
}
static-mapping NASF5D537a {
ip-address 192.168.3.4
mac-address 00:08:9b:f5:d5:37
}
static-mapping ReganWhd-PC {
ip-address 192.168.3.103
mac-address 38:60:77:13:55:b7
}
static-mapping mp161 {
ip-address 192.168.3.110
mac-address 00:00:74:e4:3f:64
}
static-mapping n-c1 {
ip-address 192.168.3.101
mac-address 64:00:6a:6e:e3:64
}
static-mapping n-c2 {
ip-address 192.168.3.102
mac-address 64:00:6a:6e:a4:2e
}
static-mapping n-c4 {
ip-address 192.168.3.104
mac-address 64:00:6a:6e:a5:c4
}
static-mapping n-monitor {
ip-address 192.168.3.7
mac-address 52:54:00:a3:b8:57
}
static-mapping n-storageb {
ip-address 192.168.3.5
mac-address 00:08:9b:f5:d5:3a
}
static-mapping switch {
ip-address 192.168.3.2
mac-address 44:d9:e7:06:cd:69
}
}
}
shared-network-name network203 {
authoritative disable
subnet 192.168.203.0/24 {
default-router 192.168.203.1
dns-server 8.8.8.8
dns-server 8.8.4.4
domain-name ourdomain
lease 86400
start 192.168.203.200 {
stop 192.168.203.249
}
static-mapping workshop {
ip-address 192.168.203.2
mac-address 44:d9:e7:48:2b:38
}
}
}
}
dns {
forwarding {
cache-size 150
listen-on eth1
listen-on switch0
}
}
gui {
https-port 443
}
nat {
rule 5010 {
outbound-interface pppoe0
type masquerade
}
}
snmp {
community public {
authorization ro
}
contact Peter
location "Newark Workshop"
}
ssh {
port 22
protocol-version v2
}
}
system {
domain-name ourdomain
host-name n-gw-01
login {
user admin {
authentication {
encrypted-password ****************
plaintext-password ****************
public-keys peterk@n-c2 {
key ****************
type ssh-rsa
}
public-keys peterk@neptune {
key ****************
type ssh-rsa
}
}
full-name Admin
level admin
}
}
name-server 192.168.1.2
ntp {
server 0.ubnt.pool.ntp.org {
}
server 1.ubnt.pool.ntp.org {
}
server 2.ubnt.pool.ntp.org {
}
server 3.ubnt.pool.ntp.org {
}
}
syslog {
global {
facility all {
level notice
}
facility protocols {
level debug
}
}
host 192.168.3.4 {
facility all {
level info
}
}
}
time-zone America/Los_Angeles
}
vpn {
ipsec {
auto-firewall-nat-exclude enable
disable-uniqreqids
esp-group espgroup1 {
compression disable
lifetime 28800
mode tunnel
pfs disable
proposal 1 {
encryption aes128
hash sha1
}
}
ike-group ikegroup1 {
ikev2-reauth no
key-exchange ikev1
lifetime 28800
proposal 1 {
dh-group 2
encryption aes128
hash sha1
}
}
ipsec-interfaces {
interface eth0
interface pppoe0
}
logging {
log-level 0
log-modes dmn
log-modes mgr
log-modes ike
log-modes cfg
log-modes net
}
nat-networks {
allowed-network 0.0.0.0/0 {
}
}
nat-traversal enable
site-to-site {
peer NNN.NNN.NNN.NNN {
authentication {
mode pre-shared-secret
pre-shared-secret ****************
}
connection-type initiate
default-esp-group espgroup1
ike-group ikegroup1
ikev2-reauth inherit
local-address NNN.NNN.NNN.NNN
tunnel 1 {
allow-nat-networks disable
allow-public-networks disable
esp-group espgroup1
local {
prefix 192.168.3.0/24
}
remote {
prefix 192.168.1.0/24
}
}
}
}
}
}I'm at a loss as to the cause. Thoughts?
