[squid-users] Warning

Hello,
What might be causing this Warning?!

"WARNING: Forwarding loop detected for:
Client: 192.168.15.251 http_port: 192.168.15.202:3128"

See my config file :

# tratar objetos fresh, stale(refresh)
# Customizes cache log output. First column will output user-friendly time
#logformat modcs %tl %6tr %>a %Ss/%03Hs %<st %rm %ru %un %Sh/%<A %mt
logformat modcs %{%H:%M:%S}tl.%05tu %6tr %>a %Ss/%03Hs %<st %rm %ru
%un %Sh/%<A %mt
access_log /var/log/squid/access-modcs.log modcs
access_log /var/log/squid/access.log squid

# RAM
cache_mem 2048 MB
maximum_object_size_in_memory 64 KB

# HD
cache_dir aufs /var/spool/squid 5000 16 256
#maximum_object_size 128 MB
maximum_object_size 16 MB
minimum_object_size 0 KB

# Cache Threshold limits
cache_swap_low 90
cache_swap_high 100

log_icp_queries on

digest_generation off # Disables cache digest

icp_port 3130 # 0 disables ICP
acl cloud src 192.168.15.0/24
icp_access allow cloud
# Scenario 3. Mesh
#cache_peer 192.168.15.200 parent 3128 0 no-query round-robin
cache_peer 192.168.15.253 sibling 3128 3130 no-digest proxy-only
cache_peer 192.168.15.252 sibling 3128 3130 no-digest proxy-only
cache_peer 192.168.15.251 sibling 3128 3130 no-digest proxy-only
#prefer_direct off
### END Scenario 3 ###
# Cache Uploads
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern . 0 20% 4320

# Basic configuration
http_port 3128 transparent
visible_hostname mc2-frontend

acl all src 0.0.0.0/0.0.0.0
icp_access deny all
http_access allow all

-----------------------------------------------
Igor Rafael da Rocha
Received on Mon Aug 29 2011 - 20:07:08 MDT