diff --git a/.travis.yml b/.travis.yml
index aef3ed2..cbd00b3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,6 +21,8 @@ script:
   - go vet . || true
   - sudo sysctl -w net.ipv6.conf.all.disable_ipv6=0
   - sudo ip -6 address replace ::1/128 dev lo
+  - sudo ip link
+  - sudo ip addr
   - go build ./cmd/...
   - go test -v -race ./internal/...
   - docker build --pull --no-cache --rm -t=router7 -f travis/Dockerfile .