routing table differences between two team members connection to GP gateway
Steven DuChene
tevend at yahoo.com
Tue Jun 22 14:23:28 PDT 2021
I am connecting to a corporate VPN gateway and and I am having an unusual issue with not being able to edit documents in an internal wiki like product called confluence.
The corporate VPN gateway is a Global Protect product so I am using openconnect 8.10 downloaded as source and built on my Ubuntu 18.04 system.
Prior to connecting to the VPN I have the following routing table:
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
165.204.84.11 192.168.121.1 255.255.255.255 UGH 0 0 0 enp1s0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 enp1s0
192.168.121.0 0.0.0.0 255.255.255.0 U 0 0 0 enp1s0
When I connect to the VPN gateway I end up with the following entries in my routing table:
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
0.0.0.0 0.0.0.0 0.0.0.0 U 0 0 0 tun0
10.176.3.1 0.0.0.0 255.255.255.255 UH 0 0 0 tun0
10.176.3.2 0.0.0.0 255.255.255.255 UH 0 0 0 tun0
13.107.64.0 0.0.0.0 255.255.192.0 U 0 0 0 tun0
13.107.208.0 0.0.0.0 255.255.255.0 U 0 0 0 tun0
13.107.219.0 0.0.0.0 255.255.255.0 U 0 0 0 tun0
13.107.246.0 0.0.0.0 255.255.255.0 U 0 0 0 tun0
13.107.253.0 0.0.0.0 255.255.255.0 U 0 0 0 tun0
52.112.0.0 0.0.0.0 255.252.0.0 U 0 0 0 tun0
52.120.0.0 0.0.0.0 255.252.0.0 U 0 0 0 tun0
68.232.34.200 0.0.0.0 255.255.255.255 UH 0 0 0 tun0
72.21.81.200 0.0.0.0 255.255.255.255 UH 0 0 0 tun0
93.184.215.201 0.0.0.0 255.255.255.255 UH 0 0 0 tun0
117.18.232.200 0.0.0.0 255.255.255.255 UH 0 0 0 tun0
152.195.19.97 0.0.0.0 255.255.255.255 UH 0 0 0 tun0
152.199.19.161 0.0.0.0 255.255.255.255 UH 0 0 0 tun0
152.199.21.175 0.0.0.0 255.255.255.255 UH 0 0 0 tun0
152.199.39.108 0.0.0.0 255.255.255.255 UH 0 0 0 tun0
152.199.52.147 0.0.0.0 255.255.255.255 UH 0 0 0 tun0
165.204.84.11 192.168.121.1 255.255.255.255 UGH 0 0 0 enp1s0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 enp1s0
192.16.48.200 0.0.0.0 255.255.255.255 UH 0 0 0 tun0
192.168.121.0 0.0.0.0 255.255.255.0 U 0 0 0 enp1s0
192.229.232.200 0.0.0.0 255.255.255.255 UH 0 0 0 tun0
The openconnect invocation from the command line is:
openconnect --protocol gp --script /etc/vpnc/vpnc-script atlvpn.MYCOMPANY.com -u sdNAME at MYCOMPANY.com --csd-wrapper=/usr/local/src/openconnect/trojans/hipreport.sh --force-trojan 300
I had a co-worker who is also connecting to the same corporate VPN gateway with Ubuntu 20.04 and openconnect 8.05.1 (installed from Ubuntu repos) try my same vpnc-script and he ended up with a completely different routing table. When he connects he is able to edit documents in the confluence wiki just fine. His routing table looks like:
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
0.0.0.0 0.0.0.0 0.0.0.0 U 0 0 0 tun0
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 ens33
10.176.3.1 0.0.0.0 255.255.255.255 UH 0 0 0 tun0
10.176.3.2 0.0.0.0 255.255.255.255 UH 0 0 0 tun0
10.254.37.215 0.0.0.0 255.255.255.255 UH 0 0 0 tun0
13.107.64.0 192.168.0.1 255.255.192.0 UG 0 0 0 ens33
13.107.208.0 192.168.0.1 255.255.255.0 UG 0 0 0 ens33
13.107.219.0 192.168.0.1 255.255.255.0 UG 0 0 0 ens33
13.107.246.0 192.168.0.1 255.255.255.0 UG 0 0 0 ens33
13.107.253.0 192.168.0.1 255.255.255.0 UG 0 0 0 ens33
52.112.0.0 192.168.0.1 255.252.0.0 UG 0 0 0 ens33
52.120.0.0 192.168.0.1 255.252.0.0 UG 0 0 0 ens33
68.232.34.200 192.168.0.1 255.255.255.255 UGH 0 0 0 ens33
72.21.81.200 192.168.0.1 255.255.255.255 UGH 0 0 0 ens33
93.184.215.201 192.168.0.1 255.255.255.255 UGH 0 0 0 ens33
117.18.232.200 192.168.0.1 255.255.255.255 UGH 0 0 0 ens33
152.195.19.97 192.168.0.1 255.255.255.255 UGH 0 0 0 ens33
152.199.19.161 192.168.0.1 255.255.255.255 UGH 0 0 0 ens33
152.199.21.175 192.168.0.1 255.255.255.255 UGH 0 0 0 ens33
152.199.39.108 192.168.0.1 255.255.255.255 UGH 0 0 0 ens33
152.199.52.147 192.168.0.1 255.255.255.255 UGH 0 0 0 ens33
165.204.84.11 192.168.0.1 255.255.255.255 UGH 0 0 0 ens33
192.16.48.200 192.168.0.1 255.255.255.255 UGH 0 0 0 ens33
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 ens33
192.168.0.1 0.0.0.0 255.255.255.255 UH 0 0 0 ens33
192.229.232.200 192.168.0.1 255.255.255.255 UGH 0 0 0 ens33
Why are the two routing tables so vastly different between these two Ubuntu systems?
Any help or advice would be most appreciated.
--
Steve
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