The operational command show vpn ipsec connections shows only one tunnel as UP. Whichever tunnel is loaded last, that tunnel is shown as up.
Sending traffic also doesn't make any difference.
vyos@vyos# run sh vpn ipsec connections
Connection State Type Remote address Local TS Remote TS Local id Remote id Proposal
---------------- ------- ------ ---------------- --------------- --------------- ---------- ----------- -------------------------------------
remote1 down IKEv2 1.2.3.4 - - 1.2.3.4 -
remote1-tunnel-0 down IPsec 1.2.3.4 192.168.99.2/32 192.168.99.1/32 1.2.3.4 -
remote2 up IKEv2 1.2.3.5 - - 1.2.3.5 AES_CBC/256/HMAC_SHA2_256_128/ECP_521
remote2-tunnel-0 up IPsec 1.2.3.5 192.168.99.2/32 192.168.99.3/32 1.2.3.5 AES_CBC/256/HMAC_SHA2_256_128/None
[edit]
vyos@vyos# run sh vpn ipsec sa
Connection State Uptime Bytes In/Out Packets In/Out Remote address Remote ID Proposal
---------------- ------- -------- -------------- ---------------- ---------------- ----------- -----------------------------
remote1-tunnel-0 up 15m26s 1K/1K 19/19 1.2.3.4 1.2.3.4 AES_CBC_256/HMAC_SHA2_256_128
remote2-tunnel-0 up 15m26s 0B/0B 0/0 1.2.3.5 1.2.3.5 AES_CBC_256/HMAC_SHA2_256_128
vyos@vyos# sudo swanctl -l
remote2: #2, ESTABLISHED, IKEv2, bd540d0a31d55f9f_i* 4d134218c45dac62_r
local '1.2.3.3' @ 1.2.3.3[4500]
remote '1.2.3.5' @ 1.2.3.5[4500]
AES_CBC-256/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/ECP_521
established 975s ago, rekeying in 27156s
remote2-tunnel-0: #2, reqid 2, INSTALLED, TUNNEL, ESP:AES_CBC-256/HMAC_SHA2_256_128
installed 975s ago, rekeying in 2625s, expires in 2625s
in c60737ef, 0 bytes, 0 packets
out cd25f7dc, 0 bytes, 0 packets
local 192.168.99.2/32
remote 192.168.99.3/32
remote1: #1, ESTABLISHED, IKEv2, 2c3f98ad856b2e0c_i* c661cd025f731e12_r
local '1.2.3.3' @ 1.2.3.3[4500]
remote '1.2.3.4' @ 1.2.3.4[4500]
AES_CBC-256/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/ECP_521
established 975s ago, rekeying in 25385s
remote1-tunnel-0: #1, reqid 1, INSTALLED, TUNNEL, ESP:AES_CBC-256/HMAC_SHA2_256_128
installed 975s ago, rekeying in 2625s, expires in 2625s
in ce2acb92, 5628 bytes, 67 packets, 1s ago
out c0c69888, 5628 bytes, 67 packets, 1s ago
local 192.168.99.2/32
remote 192.168.99.1/32
[edit]
vyos@vyos# sudo swanctl -L
remote1: IKEv2, no reauthentication, rekeying every 28800s, dpd delay 30s
local: 1.2.3.3
remote: 1.2.3.4
local pre-shared key authentication:
remote pre-shared key authentication:
id: 1.2.3.4
remote1-tunnel-0: TUNNEL, rekeying every 3600s, dpd action is clear
local: 192.168.99.2/32
remote: 192.168.99.1/32
remote2: IKEv2, no reauthentication, rekeying every 28800s, dpd delay 30s
local: 1.2.3.3
remote: 1.2.3.5
local pre-shared key authentication:
remote pre-shared key authentication:
id: 1.2.3.5
remote2-tunnel-0: TUNNEL, rekeying every 3600s, dpd action is clear
local: 192.168.99.2/32
remote: 192.168.99.3/32