Setting up SQUID to work as transparent proxy (intercept mode) with Cisco ASA (ver 9.5(2)2). WCCP communication channel not working properly. At the Cisco side debug: WCCP-SB: Adding input service D90 to interface Port-channel1.602 WCCP-PKT:D90: Sending I_See_You packet to 10.50.64.246 w/ rcv_id 0001F50F WCCP-PKT:S00: Sending I_See_You packet to 10.50.64.246 w/ rcv_id 0001F682 WCCP-PKT:D90: Sending Removal_Query packet to 10.50.64.246w/ rcv_id 0001F510 WCCP-PKT:S00: Sending Removal_Query packet to 10.50.64.246w/ rcv_id 0001F683 WCCP-EVNT: Using ACL API to delete redirect NP rules At Linux box side: Gentoo Base System release 2.2 Linux proxy-01 4.4.6-gentoo #1 SMP Fri Jun 24 14:22:20 2016 x86_64 Intel(R) Xeon(R) CPU E5-2450 0 @ 2.10GHz GenuineIntel GNU/Linux proxy-01 ~ # emerge --info squid Portage 2.2.28 (python 2.7.10-final-0, default/linux/amd64/13.0, gcc-4.9.3, glibc-2.22-r4, 4.4.6-gentoo x86_64) ================================================================= System Settings ================================================================= System uname: Linux-4.4.6-gentoo-x86_64-Intel-R-_Xeon-R-_CPU_E5-2450_0_@_2.10GHz-with-gentoo-2.2 KiB Mem: 8179292 total, 7807664 free KiB Swap: 8388604 total, 8388604 free Timestamp of repository gentoo: Tue, 28 Jun 2016 08:30:01 +0000 sh bash 4.3_p42-r1 ld GNU ld (Gentoo 2.25.1 p1.1) 2.25.1 app-shells/bash: 4.3_p42-r1::gentoo dev-lang/perl: 5.20.2::gentoo dev-lang/python: 2.7.10-r1::gentoo, 3.4.3-r1::gentoo dev-util/pkgconfig: 0.28-r2::gentoo sys-apps/baselayout: 2.2::gentoo sys-apps/openrc: 0.19.1::gentoo sys-apps/sandbox: 2.10-r1::gentoo sys-devel/autoconf: 2.69::gentoo sys-devel/automake: 1.14.1::gentoo, 1.15::gentoo sys-devel/binutils: 2.25.1-r1::gentoo sys-devel/gcc: 4.9.3::gentoo sys-devel/gcc-config: 1.7.3::gentoo sys-devel/libtool: 2.4.6::gentoo sys-devel/make: 4.1-r1::gentoo sys-kernel/linux-headers: 4.3::gentoo (virtual/os-headers) sys-libs/glibc: 2.22-r4::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-mcpu=corei7-avx -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/gconf /etc/gentoo-release /etc/sandbox.d /etc/terminfo" CXXFLAGS="-mcpu=corei7-avx -O2 -pipe" DISTDIR="/usr/portage/distfiles" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://mirror.yandex.ru/gentoo-distfiles/" LANG="ru_RU.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j5" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git" PORTAGE_TMPDIR="/var/tmp" USE="acl amd64 berkdb bindist bzip2 cli cracklib crypt cxx dri fortran gdbm iconv mmx mmxext modules multilib ncurses nls nptl openmp pam pcre readline seccomp session sse sse2 ssl tcpd unicode xattr zlib" ABI_X86="64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="mmx mmxext sse sse2" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_4" RUBY_TARGETS="ruby20 ruby21" USERLAND="GNU" VIDEO_CARDS="amdgpu fbdev intel nouveau radeon radeonsi vesa dummy v4l" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CC, CPPFLAGS, CTARGET, CXX, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON ================================================================= Package Settings ================================================================= net-proxy/squid-3.5.17::gentoo was built with the following: USE="htcp pam ssl ssl-crtd wccp wccpv2 -caps -ecap -esi (-ipf-transparent) -ipv6 -kerberos (-kqueue) -ldap -logrotate -mysql -nis (-pf-transparent) -postgres -qos -radius -samba -sasl (-selinux) -snmp -sqlite -test -tproxy" ABI_X86="64" SQUID DEBUG LOG 2016/06/28 08:12:57.724| 80,5| wccp.cc(91) wccpInit: wccpInit: Called 2016/06/28 08:12:57.724| 80,5| wccp2.cc(662) wccp2Init: wccp2Init: Called 2016/06/28 08:12:57.724| 80,5| wccp2.cc(477) wccp2InitServices: wccp2InitServices: called 2016/06/28 08:12:57.724| 80,3| wccp2.cc(935) wccp2Init: wccp2Init: scheduled 'HERE_I_AM' message to 1routers. 2016/06/28 08:12:57.724| 41,7| event.cc(322) schedule: schedule: Adding 'wccp2HereIam', in 1.00 seconds 2016/06/28 08:12:57.724| 80,5| wccp.cc(109) wccpConnectionOpen: wccpConnectionOpen: Called 2016/06/28 08:12:57.724| 80,2| wccp.cc(112) wccpConnectionOpen: WCCPv1 disabled. 2016/06/28 08:12:57.724| 80,5| wccp2.cc(957) wccp2ConnectionOpen: wccp2ConnectionOpen: Called 2016/06/28 08:12:58.791| 41,5| AsyncCall.cc(26) AsyncCall: The AsyncCall wccp2HereIam constructed, this=0x2198840 [call24] 2016/06/28 08:12:58.791| 41,5| AsyncCall.cc(93) ScheduleCall: event.cc(237) will call wccp2HereIam() [call24] 2016/06/28 08:12:58.791| 41,5| AsyncCallQueue.cc(55) fireNext: entering wccp2HereIam() 2016/06/28 08:12:58.791| 41,5| AsyncCall.cc(38) make: make call wccp2HereIam [call24] 2016/06/28 08:12:58.791| 80,6| wccp2.cc(1530) wccp2HereIam: wccp2HereIam: Called 2016/06/28 08:12:58.791| 80,5| wccp2.cc(1549) wccp2HereIam: wccp2HereIam: sending to service id 0 2016/06/28 08:12:58.791| 80,3| wccp2.cc(1580) wccp2HereIam: Sending HereIam packet size 144 2016/06/28 08:12:58.791| 41,7| event.cc(322) schedule: schedule: Adding 'wccp2HereIam', in 10.00 seconds 2016/06/28 08:12:58.791| 41,5| AsyncCallQueue.cc(57) fireNext: leaving wccp2HereIam() 2016/06/28 08:12:58.791| 80,6| wccp2.cc(1152) wccp2HandleUdp: wccp2HandleUdp: Called. 2016/06/28 08:12:58.791| 80,3| wccp2.cc(1178) wccp2HandleUdp: Incoming WCCPv2 I_SEE_YOU length 84. 2016/06/28 08:12:58.791| 80,5| wccp2.cc(1273) wccp2HandleUdp: Complete packet received 2016/06/28 08:12:58.791| 80,3| wccp2.cc(1317) wccp2HandleUdp: Incoming WCCP2_I_SEE_YOU Received ID old=0 new=128658. 2016/06/28 08:12:58.791| 80,5| wccp2.cc(1380) wccp2HandleUdp: Cleaning out cache list 2016/06/28 08:12:58.791| 80,5| wccp2.cc(1483) wccp2HandleUdp: Adding ourselves as the only cache 2016/06/28 08:12:58.791| 80,4| wccp2.cc(1503) wccp2HandleUdp: Change detected - queueing up new assignment 2016/06/28 08:12:58.791| 41,7| event.cc(322) schedule: schedule: Adding 'wccp2AssignBuckets', in 15.00 seconds 2016/06/28 08:12:59.717| 80,6| wccp2.cc(1152) wccp2HandleUdp: wccp2HandleUdp: Called. 2016/06/28 08:13:08.793| 41,5| AsyncCall.cc(26) AsyncCall: The AsyncCall wccp2HereIam constructed, this=0x2198840 [call45] 2016/06/28 08:13:08.793| 41,5| AsyncCall.cc(93) ScheduleCall: event.cc(237) will call wccp2HereIam() [call45] 2016/06/28 08:13:08.793| 41,5| AsyncCallQueue.cc(55) fireNext: entering wccp2HereIam() 2016/06/28 08:13:08.793| 41,5| AsyncCall.cc(38) make: make call wccp2HereIam [call45] 2016/06/28 08:13:08.793| 80,6| wccp2.cc(1530) wccp2HereIam: wccp2HereIam: Called 2016/06/28 08:13:08.793| 80,5| wccp2.cc(1549) wccp2HereIam: wccp2HereIam: sending to service id 0 2016/06/28 08:13:08.793| 80,3| wccp2.cc(1580) wccp2HereIam: Sending HereIam packet size 144 2016/06/28 08:13:08.793| 41,7| event.cc(322) schedule: schedule: Adding 'wccp2HereIam', in 10.00 seconds 2016/06/28 08:13:08.793| 41,5| AsyncCallQueue.cc(57) fireNext: leaving wccp2HereIam() 2016/06/28 08:13:08.793| 80,6| wccp2.cc(1152) wccp2HandleUdp: wccp2HandleUdp: Called. 2016/06/28 08:13:08.793| 80,3| wccp2.cc(1178) wccp2HandleUdp: Incoming WCCPv2 I_SEE_YOU length 84. 2016/06/28 08:13:08.793| 80,5| wccp2.cc(1273) wccp2HandleUdp: Complete packet received 2016/06/28 08:13:08.793| 80,3| wccp2.cc(1317) wccp2HandleUdp: Incoming WCCP2_I_SEE_YOU Received ID old=128658 new=128660. 2016/06/28 08:13:08.793| 80,5| wccp2.cc(1380) wccp2HandleUdp: Cleaning out cache list 2016/06/28 08:13:08.793| 80,5| wccp2.cc(1483) wccp2HandleUdp: Adding ourselves as the only cache 2016/06/28 08:13:08.793| 80,5| wccp2.cc(1508) wccp2HandleUdp: Change not detected (70 = 70) 2016/06/28 08:13:09.669| 80,6| wccp2.cc(1152) wccp2HandleUdp: wccp2HandleUdp: Called. Tested version 3.5.17, 3.5.19. On other Linux distros same version working fine.
Please clarify the versions you have tested: In the bug title you are saying that versions _before_ net-proxy/squid-3.5.19 don't work with Cisco ASA (=the problem is gone in 3.5.19) but in your bug description you are saying you unsuccessfully tested 3.5.19.
Closing. Reopen if needed.