When I add only one L2TP VPN profile to gnome-control-center's Network > VPN setting, it works fine.
However, if I add a 2nd L2TP VPN, the 2nd L2TP VPN, not only doesn't work, but it corrupts the first L2TP VPN so that it too stops working.
Furthermore, if I remove 2nd L2TP VPN profile (that corrupted the first L2TP VPN) this does NOT repair the corruption to the first L2TP VPN, it remains corrupted.
Additionally, removing all VPN profiles and re-adding the first one back, doesn't repair the corruption. Rebooting and adding them back doesn't work either.
The only thing that works, that I've found, is completely reinstalling Ubuntu 19.10. Please advise better workarounds than reinstalling.
Here's what's in the syslog on a failed VPN Connection attempt:
Oct 26 02:58:35 workstation5 NetworkManager[1241]: <info> [1572076715.5632] audit: op="connection-activate" uuid="1942cf95-93b1-4e74-a44a-947a46bffb5a" name="L2TP VPN1" pid=3531 uid=1000 result="success"
Oct 26 02:58:35 workstation5 NetworkManager[1241]: <info> [1572076715.5702] vpn-connection[0x5642f421c750,1932cf95-91b1-4e85-a44a-498a56befb5a,"L2TP VPN1",0]: Started the VPN service, PID 7273
Oct 26 02:58:35 workstation5 NetworkManager[1241]: <info> [1572076715.5747] vpn-connection[0x5642f421c750,1932cf95-91b1-4e85-a44a-498a56befb5a,"L2TP VPN1",0]: Saw the service appear; activating connection
Oct 26 02:58:35 workstation5 NetworkManager[1241]: <info> [1572076715.6566] vpn-connection[0x5642f421c750,1932cf95-91b1-4e85-a44a-498a56befb5a,"L2TP VPN1",0]: VPN connection: (ConnectInteractive) reply received
Oct 26 02:58:35 workstation5 NetworkManager[1241]: Stopping strongSwan IPsec failed: starter is not running
Oct 26 02:58:37 workstation5 NetworkManager[1241]: Starting strongSwan 5.7.2 IPsec [starter]...
Oct 26 02:58:37 workstation5 NetworkManager[1241]: Loading config setup
Oct 26 02:58:37 workstation5 NetworkManager[1241]: Loading conn '1942cf95-93b1-4e74-a44a-947a46bffb5a'
Oct 26 02:58:37 workstation5 NetworkManager[1241]: found netkey IPsec stack
Oct 26 02:58:48 workstation5 NetworkManager[1241]: Stopping strongSwan IPsec...
Oct 26 02:58:48 workstation5 NetworkManager[1241]: initiating Main Mode IKE_SA 1942cf95-93b1-4e74-a44a-947a46bffb5a[1] to 49.230.24.121
Oct 26 02:58:48 workstation5 NetworkManager[1241]: generating ID_PROT request 0 [ SA V V V V V ]
Oct 26 02:58:48 workstation5 NetworkManager[1241]: sending packet: from 192.168.1.2[500] to 49.230.24.121[500] (236 bytes)
Oct 26 02:58:48 workstation5 NetworkManager[1241]: received packet: from 49.230.24.121[500] to 192.168.1.2[500] (156 bytes)
Oct 26 02:58:48 workstation5 NetworkManager[1241]: parsed ID_PROT response 0 [ SA V V V V ]
Oct 26 02:58:48 workstation5 NetworkManager[1241]: received XAuth vendor ID
Oct 26 02:58:48 workstation5 NetworkManager[1241]: received DPD vendor ID
Oct 26 02:58:48 workstation5 NetworkManager[1241]: received FRAGMENTATION vendor ID
Oct 26 02:58:48 workstation5 NetworkManager[1241]: received NAT-T (RFC 3947) vendor ID
Oct 26 02:58:48 workstation5 NetworkManager[1241]: selected proposal: IKE:3DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024
Oct 26 02:58:48 workstation5 NetworkManager[1241]: generating ID_PROT request 0 [ KE No NAT-D NAT-D ]
Oct 26 02:58:48 workstation5 NetworkManager[1241]: sending packet: from 192.168.1.2[500] to 49.230.24.121[500] (244 bytes)
Oct 26 02:58:48 workstation5 NetworkManager[1241]: received packet: from 49.230.24.121[500] to 192.168.1.2[500] (244 bytes)
Oct 26 02:58:48 workstation5 NetworkManager[1241]: parsed ID_PROT response 0 [ KE No NAT-D NAT-D ]
Oct 26 02:58:48 workstation5 NetworkManager[1241]: local host is behind NAT, sending keep alives
Oct 26 02:58:48 workstation5 NetworkManager[1241]: generating ID_PROT request 0 [ ID HASH ]
Oct 26 02:58:48 workstation5 NetworkManager[1241]: sending packet: from 192.168.1.2[4500] to 49.230.24.121[4500] (68 bytes)
Oct 26 02:58:48 workstation5 NetworkManager[1241]: received packet: from 49.230.24.121[500] to 192.168.1.2[500] (68 bytes)
Oct 26 02:58:48 workstation5 NetworkManager[1241]: invalid HASH_V1 payload length, decryption failed?
Oct 26 02:58:48 workstation5 NetworkManager[1241]: could not decrypt payloads
Oct 26 02:58:48 workstation5 NetworkManager[1241]: message parsing failed
Oct 26 02:58:48 workstation5 NetworkManager[1241]: ignore malformed INFORMATIONAL request
Oct 26 02:58:48 workstation5 NetworkManager[1241]: INFORMATIONAL_V1 request with message ID 3016741680 processing failed
Oct 26 02:58:48 workstation5 NetworkManager[1241]: sending retransmit 1 of request message ID 0, seq 3
Oct 26 02:58:48 workstation5 NetworkManager[1241]: sending packet: from 192.168.1.2[4500] to 49.230.24.121[4500] (68 bytes)
Oct 26 02:58:48 workstation5 NetworkManager[1241]: received packet: from 49.230.24.121[500] to 192.168.1.2[500] (68 bytes)
Oct 26 02:58:48 workstation5 NetworkManager[1241]: invalid HASH_V1 payload length, decryption failed?
Oct 26 02:58:48 workstation5 NetworkManager[1241]: could not decrypt payloads
Oct 26 02:58:48 workstation5 NetworkManager[1241]: message parsing failed
Oct 26 02:58:48 workstation5 NetworkManager[1241]: ignore malformed INFORMATIONAL request
Oct 26 02:58:48 workstation5 NetworkManager[1241]: INFORMATIONAL_V1 request with message ID 394520243 processing failed
Oct 26 02:58:48 workstation5 NetworkManager[1241]: destroying IKE_SA in state CONNECTING without notification
Oct 26 02:58:48 workstation5 NetworkManager[1241]: establishing connection '1942cf95-93b1-4e74-a44a-947a46bffb5a' failed
Oct 26 02:58:48 workstation5 NetworkManager[1241]: <info> [1572076728.9330] vpn-connection[0x5642f421c750,1932cf95-91b1-4e85-a44a-498a56befb5a,"L2TP VPN1",0]: VPN plugin: state changed: stopped (6)
Oct 26 02:58:48 workstation5 NetworkManager[1241]: <info> [1572076728.9348] vpn-connection[0x5642f421c750,1932cf95-91b1-4e85-a44a-498a56befb5a,"L2TP VPN1",0]: VPN service disappeared
Oct 26 02:58:48 workstation5 NetworkManager[1241]: <warn> [1572076728.9356] vpn-connection[0x5642f421c750,1932cf95-91b1-4e85-a44a-498a56befb5a,"L2TP VPN1",0]: VPN connection: failed to connect: 'Message recipient disconnected from message bus without replying'
ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: gnome-control-center 1:3.34.1-1ubuntu2
ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1
Uname: Linux 5.3.0-19-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu8
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sat Oct 26 02:36:56 2019
InstallationDate: Installed on 2019-10-19 (6 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: gnome-control-center
UpgradeStatus: No upgrade log present (probably fresh install)
When I add only one L2TP VPN profile to gnome-control- center' s Network > VPN setting, it works fine.
However, if I add a 2nd L2TP VPN, the 2nd L2TP VPN, not only doesn't work, but it corrupts the first L2TP VPN so that it too stops working.
Furthermore, if I remove 2nd L2TP VPN profile (that corrupted the first L2TP VPN) this does NOT repair the corruption to the first L2TP VPN, it remains corrupted.
Additionally, removing all VPN profiles and re-adding the first one back, doesn't repair the corruption. Rebooting and adding them back doesn't work either.
The only thing that works, that I've found, is completely reinstalling Ubuntu 19.10. Please advise better workarounds than reinstalling.
Here's what's in the syslog on a failed VPN Connection attempt:
Oct 26 02:58:35 workstation5 NetworkManager[ 1241]: <info> [1572076715.5632] audit: op="connection- activate" uuid="1942cf95- 93b1-4e74- a44a-947a46bffb 5a" name="L2TP VPN1" pid=3531 uid=1000 result="success" 1241]: <info> [1572076715.5702] vpn-connection[ 0x5642f421c750, 1932cf95- 91b1-4e85- a44a-498a56befb 5a,"L2TP VPN1",0]: Started the VPN service, PID 7273 1241]: <info> [1572076715.5747] vpn-connection[ 0x5642f421c750, 1932cf95- 91b1-4e85- a44a-498a56befb 5a,"L2TP VPN1",0]: Saw the service appear; activating connection 1241]: <info> [1572076715.6566] vpn-connection[ 0x5642f421c750, 1932cf95- 91b1-4e85- a44a-498a56befb 5a,"L2TP VPN1",0]: VPN connection: (ConnectInterac tive) reply received 1241]: Stopping strongSwan IPsec failed: starter is not running 1241]: Starting strongSwan 5.7.2 IPsec [starter]... 1241]: Loading config setup 1241]: Loading conn '1942cf95- 93b1-4e74- a44a-947a46bffb 5a' 1241]: found netkey IPsec stack 1241]: Stopping strongSwan IPsec... 1241]: initiating Main Mode IKE_SA 1942cf95- 93b1-4e74- a44a-947a46bffb 5a[1] to 49.230.24.121 1241]: generating ID_PROT request 0 [ SA V V V V V ] 1241]: sending packet: from 192.168.1.2[500] to 49.230.24.121[500] (236 bytes) 1241]: received packet: from 49.230.24.121[500] to 192.168.1.2[500] (156 bytes) 1241]: parsed ID_PROT response 0 [ SA V V V V ] 1241]: received XAuth vendor ID 1241]: received DPD vendor ID 1241]: received FRAGMENTATION vendor ID 1241]: received NAT-T (RFC 3947) vendor ID 1241]: selected proposal: IKE:3DES_ CBC/HMAC_ SHA1_96/ PRF_HMAC_ SHA1/MODP_ 1024 1241]: generating ID_PROT request 0 [ KE No NAT-D NAT-D ] 1241]: sending packet: from 192.168.1.2[500] to 49.230.24.121[500] (244 bytes) 1241]: received packet: from 49.230.24.121[500] to 192.168.1.2[500] (244 bytes) 1241]: parsed ID_PROT response 0 [ KE No NAT-D NAT-D ] 1241]: local host is behind NAT, sending keep alives 1241]: generating ID_PROT request 0 [ ID HASH ] 1241]: sending packet: from 192.168.1.2[4500] to 49.230.24.121[4500] (68 bytes) 1241]: received packet: from 49.230.24.121[500] to 192.168.1.2[500] (68 bytes) 1241]: invalid HASH_V1 payload length, decryption failed? 1241]: could not decrypt payloads 1241]: message parsing failed 1241]: ignore malformed INFORMATIONAL request 1241]: INFORMATIONAL_V1 request with message ID 3016741680 processing failed 1241]: sending retransmit 1 of request message ID 0, seq 3 1241]: sending packet: from 192.168.1.2[4500] to 49.230.24.121[4500] (68 bytes) 1241]: received packet: from 49.230.24.121[500] to 192.168.1.2[500] (68 bytes) 1241]: invalid HASH_V1 payload length, decryption failed? 1241]: could not decrypt payloads 1241]: message parsing failed 1241]: ignore malformed INFORMATIONAL request 1241]: INFORMATIONAL_V1 request with message ID 394520243 processing failed 1241]: destroying IKE_SA in state CONNECTING without notification 1241]: establishing connection '1942cf95- 93b1-4e74- a44a-947a46bffb 5a' failed 1241]: <info> [1572076728.9330] vpn-connection[ 0x5642f421c750, 1932cf95- 91b1-4e85- a44a-498a56befb 5a,"L2TP VPN1",0]: VPN plugin: state changed: stopped (6) 1241]: <info> [1572076728.9348] vpn-connection[ 0x5642f421c750, 1932cf95- 91b1-4e85- a44a-498a56befb 5a,"L2TP VPN1",0]: VPN service disappeared 1241]: <warn> [1572076728.9356] vpn-connection[ 0x5642f421c750, 1932cf95- 91b1-4e85- a44a-498a56befb 5a,"L2TP VPN1",0]: VPN connection: failed to connect: 'Message recipient disconnected from message bus without replying'
Oct 26 02:58:35 workstation5 NetworkManager[
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ProblemType: Bug center 1:3.34.1-1ubuntu2 ature: Ubuntu 5.3.0-19.20-generic 5.3.1 dules: zfs zunicode zavl icp zcommon znvpair 256color DIR=<set> center
DistroRelease: Ubuntu 19.10
Package: gnome-control-
ProcVersionSign
Uname: Linux 5.3.0-19-generic x86_64
NonfreeKernelMo
ApportVersion: 2.20.11-0ubuntu8
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sat Oct 26 02:36:56 2019
InstallationDate: Installed on 2019-10-19 (6 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
ProcEnviron:
TERM=xterm-
PATH=(custom, no user)
XDG_RUNTIME_
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: gnome-control-
UpgradeStatus: No upgrade log present (probably fresh install)