diff --git a/xCAT-test/autotest/testcase/mkdef/cases1 b/xCAT-test/autotest/testcase/mkdef/cases1
index 958aa05f1..dadc5b244 100644
--- a/xCAT-test/autotest/testcase/mkdef/cases1
+++ b/xCAT-test/autotest/testcase/mkdef/cases1
@@ -61,3 +61,27 @@ check:rc==0
 cmd:chtab -d node=kvms vm
 check:rc==0
 end
+
+start:mkdef_regex_nicsip
+description:Verify the GitHub issue #3047.
+cmd:rmdef sn[01-16]
+cmd:rmdef -t group -o testnicips
+cmd:mkdef -t group -o testnicips
+check:rc==0
+cmd:chdef -t group -o testnicips 'ip=|\D+(\d+)|172.21.254.($1%100)|'
+check:rc==0
+cmd:chdef -t group -o testnicips 'nicips.eth1=|\D+(\d+)|172.20.254.($1%100)|'
+check:rc==0
+cmd:lsdef -t group -o testnicips | grep -F 'nicips.eth1=|\D+(\d+)|172.20.254.($1%100)|'
+check:rc==0
+cmd:mkdef sn[01-16] groups=testnicips
+check:rc==0
+cmd:lsdef sn14 -c -i ip | grep -F 'ip=172.21.254.14'
+check:rc==0
+cmd:lsdef sn09 -c -i nicips  | grep -F 'nicips.eth1=172.20.254.9'
+check:rc==0
+cmd:rmdef sn[01-16]
+check:rc==0
+cmd:rmdef -t group -o testnicips
+check:rc==0
+end