iperf3 doesn't work over openconnect
openconnect v8.02 on windows, v7.08 on linux.
I'm unable to run an iperf3 test between my home machine (vpn-client) and a machine in the office behind the VPN (server).
server command: iperf3 -p 5001 -s
client command: iperf3 -p 5001 -c server.example.com
this test works fine when connected via AnyConnect.
listening on eth0, link-type EN10MB (Ethernet), capture size 262144 bytes
21:10:54.997172 IP vpn-client.example.com.46326 > 10.0.2.3.domain: 4263+ A? server.example.com. (42)
21:10:54.997210 IP vpn-client.example.com.46326 > 10.0.2.3.domain: 49889+ AAAA? server.example.com. (42)
21:10:54.997981 IP 10.0.2.3.domain > vpn-client.example.com.46326: 49889 NXDomain 0/0/0 (42)
21:10:54.998522 IP vpn-client.example.com.53286 > server.example.com.commplex-link: Flags [S], seq 3224198059, win 29200, options [ms s 1460,sackOK,TS val 148466 ecr 0,nop,wscale 7], length 0
21:10:55.050036 IP 10.0.2.3.domain > vpn-client.example.com.56255: 19641 NXDomain 0/0/0 (39)
21:11:10.058661 IP vpn-client.example.com.53286 > server.example.com.commplex-link: Flags [S], seq 3224198059, win 29200, options [mss 1460,sackOK,TS val 163526 ecr 0,nop,wscale 7], length 0
21:11:26.117371 IP vpn-client.example.com.53286 > server.example.com.commplex-link: Flags [S], seq 3224198059, win 29200, options [mss 1460,sackOK,TS val 179585 ecr 0,nop,wscale 7], length 0
21:11:58.180256 IP vpn-client.example.com.53286 > server.example.com.commplex-link: Flags [S], seq 3224198059, win 29200, options [mss 1460,sackOK,TS val 211648 ecr 0,nop,wscale 7], length 0
Edited by Daniel Lenski