add real life testing for PPPoE and VLANs

This commit is contained in:
Sergio R. Caprile 2026-07-03 14:28:53 -03:00
parent ba2abbc444
commit 9448625662
9 changed files with 251 additions and 50 deletions

View file

@ -152,6 +152,28 @@ jobs:
- uses: actions/checkout@v5
with: { fetch-depth: 2 }
- run: sudo apt -y update ; sudo apt -y install binfmt-support qemu-user-static && docker run --rm --privileged multiarch/qemu-user-static --reset -p yes && make -C test ${{ matrix.target }} IPV6=${{ matrix.ipv6 }}
pppoe_vlan: # run tests, build tests performed by the l2 job may not catch runtime alignment and protocol issues, etc.
runs-on: ubuntu-latest
strategy:
fail-fast: false
matrix:
cc: [gcc, clang, g++, clang++]
ipv6: [0, 1]
name: PPPoE over VLAN CC=${{ matrix.cc }} IPV6=${{ matrix.ipv6 }}
steps:
- uses: actions/checkout@v5
with: { fetch-depth: 2 }
- uses: webfactory/ssh-agent@v0.10.0
with:
ssh-private-key: ${{ secrets.HEALTH_TESTS_SSH_KEY }}
- run: |
source ./test/setup_ga_network.sh
make -C test pppoe_tap_test CC=${{ matrix.cc }} IPV6=${{ matrix.ipv6 }} > log
- if: success() || failure()
run: |
cat log
test/health.awk < log > json
scp -o "StrictHostKeyChecking=no" json "root@176.9.217.245:/data/downloads/health/pppoe-vlan_${{ matrix.cc }}_${{ matrix.ipv6 }}_$(date +"%Y%m%d").json"
atcmd:
runs-on: ubuntu-latest
@ -219,12 +241,12 @@ jobs:
make -C test/bsd shm_tap_bridge
test/bsd/shm_tap_bridge &
sleep 2
make -C test/bsd
make -C test/bsd > log
- if: success() || failure()
run: |
cat log
test/health.awk < log > json
scp -o "StrictHostKeyChecking=no" json "root@176.9.217.245:/data/downloads/health/bsd_$(date +"%Y%m%d").json"
scp -o "StrictHostKeyChecking=no" json "root@176.9.217.245:/data/downloads/health/bsd_${{ matrix.cc }}_$(date +"%Y%m%d").json"
s390:
runs-on: ubuntu-latest

View file

@ -5833,10 +5833,10 @@ static void ppp_handle_ipv6cp(struct mg_tcpip_if *ifp, uint8_t *ipv6cpp,
find_opt(
MG_PPP_IPV6CP_OPT_IFCID, 10, (const uint8_t *) (ipv6cp + 1),
len - sizeof(*ipv6cp),
(uint8_t *) &((struct mg_l2addr *) (ifp->gwmac))->addr.ieee64)) {
if (((struct mg_l2addr *) (ifp->gwmac))->addr.ieee64 != 0) {
(uint8_t *) &((struct mg_l2addr *) (ifp->gw6mac))->addr.ieee64)) {
if (((struct mg_l2addr *) (ifp->gw6mac))->addr.ieee64 != 0) {
MG_DEBUG(("IPV6CP cfg, GW IFCID: %M", mg_print_ieee64,
&((struct mg_l2addr *) (ifp->gwmac))->addr.ieee64));
&((struct mg_l2addr *) (ifp->gw6mac))->addr.ieee64));
ipv6cp->code = MG_PPP_IPV6CP_CFG_ACK;
ppp_tx_frame(ifp, MG_PPP_PROTO_IPV6CP, ipv6cpp, len);
req[1] = id;
@ -5860,22 +5860,21 @@ static void ppp_handle_ipv6cp(struct mg_tcpip_if *ifp, uint8_t *ipv6cpp,
// Our peer accepted our ifc id
MG_VERBOSE(("got IPV6CP config ack"));
break;
case MG_PPP_IPV6CP_CFG_NACK:
case MG_PPP_IPV6CP_CFG_NACK: {
struct mg_l2addr l2;
MG_VERBOSE(("got IPV6CP config nack"));
// NACK contains our "suggested" IFC id, use it
if (len >= 10 &&
find_opt(
MG_PPP_IPV6CP_OPT_IFCID, 10, (const uint8_t *) (ipv6cp + 1),
len - sizeof(*ipv6cp),
(uint8_t *) &((struct mg_l2addr *) (ifp->mac))->addr.ieee64)) {
MG_DEBUG(("IPV6CP cfg, IFCID: %M", mg_print_ieee64,
&((struct mg_l2addr *) (ifp->mac))->addr.ieee64));
find_opt(MG_PPP_IPV6CP_OPT_IFCID, 10, (const uint8_t *) (ipv6cp + 1),
len - sizeof(*ipv6cp), (uint8_t *) &l2.addr.ieee64)) {
MG_DEBUG(("IPV6CP cfg, IFCID: %M", mg_print_ieee64, &l2.addr.ieee64));
ifp->ip6ll[1] = l2.addr.ieee64; // RFC-5072 5, signal L3 we're ready
ipv6cp->code = MG_PPP_IPV6CP_CFG_REQ;
ppp_tx_frame(ifp, MG_PPP_PROTO_IPV6CP, ipv6cpp, len);
} else {
MG_ERROR(("Peer is not able to offer an interface id"));
}
break;
} break;
case MG_PPP_IPV6CP_CFG_REJECT:
MG_ERROR(("Peer rejected our interface id"));
break;
@ -6040,10 +6039,10 @@ bool mg_l2_pppoe_rx(struct mg_tcpip_if *ifp, enum mg_l2proto *proto,
uint8_t *p = (uint8_t *) (pppoe + 1);
uint16_t taglen;
while (len >= 4) { // parse tags for a possible AC-Cookie
uint16_t curtag = *((uint16_t *) p);
taglen = mg_ntohs(*(((uint16_t *) p) + 1));
uint16_t curtag = MG_LOAD_BE16(p);
taglen = MG_LOAD_BE16(p + 2);
if (taglen > len - 4) return false; // truncated / malformed
if (curtag == mg_htons(0x0104)) {
if (curtag == 0x0104) {
has_cookie = true;
break;
}
@ -9747,11 +9746,12 @@ static void mg_ip6_poll(struct mg_tcpip_if *ifp, bool s1) {
static void mg_ip6_link(struct mg_tcpip_if *ifp, bool drv_up, bool l2_up) {
bool cur_drv = (ifp->state6 != MG_TCPIP_STATE_DOWN);
bool cur_l2 = (ifp->state6 >= MG_TCPIP_STATE_UP);
const uint8_t px[8] = {0xfe, 0x80, 0, 0, 0, 0, 0, 0}; // RFC-4291 2.5.6
if (drv_up != cur_drv || l2_up != cur_l2) { // link/L2 state has changed
if (l2_up && ifp->ip6ll[0] == 0 && ifp->ip6ll[1] == 0) { // gen ll address
uint8_t px[8] = {0xfe, 0x80, 0, 0, 0, 0, 0, 0}; // RFC-4291 2.5.6
if (ifp->l2type == MG_TCPIP_L2_ETH && l2_up && ifp->ip6ll[0] == 0 &&
ifp->ip6ll[1] == 0) { // gen ll address
mg_l2_genip6(ifp->l2type, ifp->ip6ll, 64, ifp->mac);
memcpy(ifp->ip6ll, px, 8); // RFC-4291 2.5.4
memcpy(ifp->ip6ll, px, 8); // RFC-2464 5
} // just got our link local address if we didn't have one.
// If static configuration is used, global addresses,
// prefix length, and gw are already filled at this point.
@ -9759,14 +9759,21 @@ static void mg_ip6_link(struct mg_tcpip_if *ifp, bool drv_up, bool l2_up) {
if (!l2_up && ifp->enable_slaac) ifp->ip6[0] = ifp->ip6[1] = 0;
ifp->state6 = !drv_up ? MG_TCPIP_STATE_DOWN
: !l2_up ? MG_TCPIP_STATE_LINK_UP
: ifp->enable_slaac || ifp->ip6[0] == 0 ? MG_TCPIP_STATE_UP
: MG_TCPIP_STATE_IP;
: ifp->ip6ll[0] == 0 || ifp->enable_slaac || ifp->ip6[0] == 0
? MG_TCPIP_STATE_UP
: MG_TCPIP_STATE_IP;
onstate6change(ifp);
} else if (!ifp->enable_slaac && ifp->state6 == MG_TCPIP_STATE_UP &&
ifp->ip6[0]) {
ifp->ip6ll[0] != 0 && ifp->ip6[0] != 0) {
ifp->state6 = MG_TCPIP_STATE_IP; // ifp->fn has set an IP
onstate6change(ifp);
}
if ((ifp->l2type == MG_TCPIP_L2_PPP || ifp->l2type == MG_TCPIP_L2_PPPoE) &&
ifp->state6 == MG_TCPIP_STATE_UP && ifp->ip6ll[0] == 0 &&
ifp->ip6ll[1] != 0) { // IPV6CP has got an IFCID, gen ll address
memcpy(ifp->ip6ll, px, 8); // RFC-5072 5
onstate6change(ifp);
} // just got our link local address if we didn't have one.
}
#else
#define mg_ip6_poll(x, y)

View file

@ -366,10 +366,10 @@ static void ppp_handle_ipv6cp(struct mg_tcpip_if *ifp, uint8_t *ipv6cpp,
find_opt(
MG_PPP_IPV6CP_OPT_IFCID, 10, (const uint8_t *) (ipv6cp + 1),
len - sizeof(*ipv6cp),
(uint8_t *) &((struct mg_l2addr *) (ifp->gwmac))->addr.ieee64)) {
if (((struct mg_l2addr *) (ifp->gwmac))->addr.ieee64 != 0) {
(uint8_t *) &((struct mg_l2addr *) (ifp->gw6mac))->addr.ieee64)) {
if (((struct mg_l2addr *) (ifp->gw6mac))->addr.ieee64 != 0) {
MG_DEBUG(("IPV6CP cfg, GW IFCID: %M", mg_print_ieee64,
&((struct mg_l2addr *) (ifp->gwmac))->addr.ieee64));
&((struct mg_l2addr *) (ifp->gw6mac))->addr.ieee64));
ipv6cp->code = MG_PPP_IPV6CP_CFG_ACK;
ppp_tx_frame(ifp, MG_PPP_PROTO_IPV6CP, ipv6cpp, len);
req[1] = id;
@ -393,22 +393,21 @@ static void ppp_handle_ipv6cp(struct mg_tcpip_if *ifp, uint8_t *ipv6cpp,
// Our peer accepted our ifc id
MG_VERBOSE(("got IPV6CP config ack"));
break;
case MG_PPP_IPV6CP_CFG_NACK:
case MG_PPP_IPV6CP_CFG_NACK: {
struct mg_l2addr l2;
MG_VERBOSE(("got IPV6CP config nack"));
// NACK contains our "suggested" IFC id, use it
if (len >= 10 &&
find_opt(
MG_PPP_IPV6CP_OPT_IFCID, 10, (const uint8_t *) (ipv6cp + 1),
len - sizeof(*ipv6cp),
(uint8_t *) &((struct mg_l2addr *) (ifp->mac))->addr.ieee64)) {
MG_DEBUG(("IPV6CP cfg, IFCID: %M", mg_print_ieee64,
&((struct mg_l2addr *) (ifp->mac))->addr.ieee64));
find_opt(MG_PPP_IPV6CP_OPT_IFCID, 10, (const uint8_t *) (ipv6cp + 1),
len - sizeof(*ipv6cp), (uint8_t *) &l2.addr.ieee64)) {
MG_DEBUG(("IPV6CP cfg, IFCID: %M", mg_print_ieee64, &l2.addr.ieee64));
ifp->ip6ll[1] = l2.addr.ieee64; // RFC-5072 5, signal L3 we're ready
ipv6cp->code = MG_PPP_IPV6CP_CFG_REQ;
ppp_tx_frame(ifp, MG_PPP_PROTO_IPV6CP, ipv6cpp, len);
} else {
MG_ERROR(("Peer is not able to offer an interface id"));
}
break;
} break;
case MG_PPP_IPV6CP_CFG_REJECT:
MG_ERROR(("Peer rejected our interface id"));
break;
@ -573,10 +572,10 @@ bool mg_l2_pppoe_rx(struct mg_tcpip_if *ifp, enum mg_l2proto *proto,
uint8_t *p = (uint8_t *) (pppoe + 1);
uint16_t taglen;
while (len >= 4) { // parse tags for a possible AC-Cookie
uint16_t curtag = *((uint16_t *) p);
taglen = mg_ntohs(*(((uint16_t *) p) + 1));
uint16_t curtag = MG_LOAD_BE16(p);
taglen = MG_LOAD_BE16(p + 2);
if (taglen > len - 4) return false; // truncated / malformed
if (curtag == mg_htons(0x0104)) {
if (curtag == 0x0104) {
has_cookie = true;
break;
}

View file

@ -1922,11 +1922,12 @@ static void mg_ip6_poll(struct mg_tcpip_if *ifp, bool s1) {
static void mg_ip6_link(struct mg_tcpip_if *ifp, bool drv_up, bool l2_up) {
bool cur_drv = (ifp->state6 != MG_TCPIP_STATE_DOWN);
bool cur_l2 = (ifp->state6 >= MG_TCPIP_STATE_UP);
const uint8_t px[8] = {0xfe, 0x80, 0, 0, 0, 0, 0, 0}; // RFC-4291 2.5.6
if (drv_up != cur_drv || l2_up != cur_l2) { // link/L2 state has changed
if (l2_up && ifp->ip6ll[0] == 0 && ifp->ip6ll[1] == 0) { // gen ll address
uint8_t px[8] = {0xfe, 0x80, 0, 0, 0, 0, 0, 0}; // RFC-4291 2.5.6
if (ifp->l2type == MG_TCPIP_L2_ETH && l2_up && ifp->ip6ll[0] == 0 &&
ifp->ip6ll[1] == 0) { // gen ll address
mg_l2_genip6(ifp->l2type, ifp->ip6ll, 64, ifp->mac);
memcpy(ifp->ip6ll, px, 8); // RFC-4291 2.5.4
memcpy(ifp->ip6ll, px, 8); // RFC-2464 5
} // just got our link local address if we didn't have one.
// If static configuration is used, global addresses,
// prefix length, and gw are already filled at this point.
@ -1934,14 +1935,21 @@ static void mg_ip6_link(struct mg_tcpip_if *ifp, bool drv_up, bool l2_up) {
if (!l2_up && ifp->enable_slaac) ifp->ip6[0] = ifp->ip6[1] = 0;
ifp->state6 = !drv_up ? MG_TCPIP_STATE_DOWN
: !l2_up ? MG_TCPIP_STATE_LINK_UP
: ifp->enable_slaac || ifp->ip6[0] == 0 ? MG_TCPIP_STATE_UP
: MG_TCPIP_STATE_IP;
: ifp->ip6ll[0] == 0 || ifp->enable_slaac || ifp->ip6[0] == 0
? MG_TCPIP_STATE_UP
: MG_TCPIP_STATE_IP;
onstate6change(ifp);
} else if (!ifp->enable_slaac && ifp->state6 == MG_TCPIP_STATE_UP &&
ifp->ip6[0]) {
ifp->ip6ll[0] != 0 && ifp->ip6[0] != 0) {
ifp->state6 = MG_TCPIP_STATE_IP; // ifp->fn has set an IP
onstate6change(ifp);
}
if ((ifp->l2type == MG_TCPIP_L2_PPP || ifp->l2type == MG_TCPIP_L2_PPPoE) &&
ifp->state6 == MG_TCPIP_STATE_UP && ifp->ip6ll[0] == 0 &&
ifp->ip6ll[1] != 0) { // IPV6CP has got an IFCID, gen ll address
memcpy(ifp->ip6ll, px, 8); // RFC-5072 5
onstate6change(ifp);
} // just got our link local address if we didn't have one.
}
#else
#define mg_ip6_poll(x, y)

View file

@ -103,6 +103,10 @@ mip_tap_test: mip_x_test.c mip_tap_test.c mongoose.c mongoose.h packed_fs.c Make
$(CC) mip_tap_test.c packed_fs.c $(CFLAGS) $(LDFLAGS) -o $@
ASAN_OPTIONS=$(ASAN_OPTIONS) $(RUN) ./$@
pppoe_tap_test: pppoe_tap_test.c mongoose.c mongoose.h Makefile
$(CC) pppoe_tap_test.c $(CFLAGS) $(LDFLAGS) -o $@
ASAN_OPTIONS=$(ASAN_OPTIONS) $(RUN) ./$@
# bridge UDP port <--> TAP interface
port_tap_bridge: port_tap_bridge.c
cc port_tap_bridge.c -o $@

View file

@ -174,7 +174,7 @@ static void test_ipv6cp(void) {
sizeof(ipv6cp)));
proto = MG_TCPIP_L2PROTO_ARP;
ASSERT(mg_l2_rx(&ifp, &proto, &pay, &raw) == false);
ASSERT(memcmp(&((struct mg_l2addr *) ifp.gwmac)->addr.ieee64, ipv6cp + 6,
ASSERT(memcmp(&((struct mg_l2addr *) ifp.gw6mac)->addr.ieee64, ipv6cp + 6,
8) == 0);
ASSERT(((struct ipv6cp *) ppp_payload(frame))->code ==
MG_PPP_IPV6CP_CFG_ACK);

View file

@ -0,0 +1,7 @@
# PPP options for the PPPoE server
noauth
10.0.0.1:10.67.15.1
lcp-echo-interval 1
lcp-echo-failure 2
+ipv6
ipv6cp-use-ipaddr

142
test/pppoe_tap_test.c Normal file
View file

@ -0,0 +1,142 @@
#define MG_ENABLE_TCPIP 1
#define MG_ENABLE_TCPIP_DRIVER_INIT 0
#include <sys/socket.h>
#ifndef __OpenBSD__
#include <linux/if.h>
#include <linux/if_tun.h>
#else
#include <net/if.h>
#include <net/if_tun.h>
#include <net/if_types.h>
#endif
#include <sys/ioctl.h>
#include "mongoose.c"
#define WAIT_MS 5000
static size_t tap_rx(void *buf, size_t len, struct mg_tcpip_if *ifp) {
ssize_t received = read(*(int *) ifp->driver_data, buf, len);
usleep(1);
if (received < 0) return 0;
return (size_t) received;
}
static size_t tap_tx(const void *buf, size_t len, struct mg_tcpip_if *ifp) {
ssize_t res = write(*(int *) ifp->driver_data, buf, len);
if (res < 0) {
MG_ERROR(("tap_tx failed: %d", errno));
return 0;
}
return (size_t) res;
}
static bool tap_poll(struct mg_tcpip_if *ifp, bool s1) {
return s1 && ifp->driver_data ? true : false;
}
int main(int argc, char *argv[]) {
int res = EXIT_SUCCESS;
const char *iface = "tap0";
const char *mac = "02:00:01:02:03:78";
#ifndef __OpenBSD__
const char *tuntap_device = "/dev/net/tun";
#else
const char *tuntap_device = "/dev/tap0";
#endif
uint16_t vlan_id = 3;
int fd, i;
struct ifreq ifr;
struct mg_mgr mgr;
struct mg_tcpip_driver driver;
struct mg_tcpip_if mif;
for (i = 1; i < argc; i++) {
if (strcmp(argv[i], "-i") == 0 && i + 1 < argc) {
iface = argv[++i];
} else if (strcmp(argv[i], "-mac") == 0 && i + 1 < argc) {
mac = argv[++i];
} else if (strcmp(argv[i], "-v") == 0 && i + 1 < argc) {
mg_log_set(atoi(argv[++i]));
} else if (strcmp(argv[i], "-vlan") == 0 && i + 1 < argc) {
vlan_id = (uint16_t) atoi(argv[++i]);
} else {
MG_ERROR(("unknown option %s", argv[i]));
return EXIT_FAILURE;
}
}
fd = open(tuntap_device, O_RDWR);
if (fd < 0) {
MG_ERROR(("Failed to open TAP device: %d", errno));
return EXIT_FAILURE;
}
memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, iface, IFNAMSIZ);
#ifndef __OpenBSD__
ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
if (ioctl(fd, TUNSETIFF, (void *) &ifr) < 0) {
MG_ERROR(("Failed to setup TAP interface: %s", ifr.ifr_name));
close(fd);
return EXIT_FAILURE;
}
#else
ifr.ifr_flags = (short) (IFF_UP | IFF_BROADCAST | IFF_MULTICAST);
if (ioctl(fd, TUNSIFMODE, (void *) &ifr) < 0) {
MG_ERROR(("Failed to setup TAP interface: %s", ifr.ifr_name));
close(fd);
return EXIT_FAILURE;
}
#endif
fcntl(fd, F_SETFL, fcntl(fd, F_GETFL, 0) | O_NONBLOCK);
memset(&driver, 0, sizeof(driver));
driver.tx = tap_tx;
driver.rx = tap_rx;
driver.poll = tap_poll;
memset(&mif, 0, sizeof(mif));
mif.driver = &driver;
mif.driver_data = &fd;
#if MG_ENABLE_IPV6
mif.ip6[0] = mg_htonll(0x100000000000000);
mif.prefix[0] = 1;
mif.prefix_len = 64;
mif.gw6[0] = mg_htonll(0x100000000000000);
mif.gw6_ready = true;
#endif
mif.l2type = MG_TCPIP_L2_PPPoE;
mif.l2data.eth.vlan_id = vlan_id;
sscanf(mac, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &mif.mac[0], &mif.mac[1],
&mif.mac[2], &mif.mac[3], &mif.mac[4], &mif.mac[5]);
mg_mgr_init(&mgr);
mg_tcpip_init(&mgr, &mif);
MG_INFO(("Opened TAP interface %s, VLAN %u", iface, vlan_id));
for (i = 0; i < WAIT_MS / 10 && (mif.state != MG_TCPIP_STATE_READY
#if MG_ENABLE_IPV6
|| mif.state6 != MG_TCPIP_STATE_READY
#endif
); i++) {
mg_mgr_poll(&mgr, 10);
usleep(10000);
}
if (mif.state != MG_TCPIP_STATE_READY) {
MG_ERROR(("IP FAILED %u", mif.state));
res = EXIT_FAILURE;
}
#if MG_ENABLE_IPV6
if (mif.state6 != MG_TCPIP_STATE_READY) {
MG_ERROR(("IPv6 FAILED %u", mif.state6));
res = EXIT_FAILURE;
}
#endif
mg_mgr_free(&mgr);
close(fd);
return res;
}

View file

@ -23,18 +23,20 @@ echo
# Package installation
echo "Package installation"
sudo apt-get -y install isc-dhcp-server net-tools radvd
sudo systemctl stop radvd # just in case they think it is cool to start it
sudo apt-get -y install isc-dhcp-server net-tools radvd ppp pppoe
sudo systemctl stop radvd # they think it is cool to start it
# sudo apt-get -y install build-essential sshpass
echo
echo "Network configuration script: Bridge"
sudo ip link add $BRIDGE type bridge # Create brige
sudo ifconfig $BRIDGE $BRIDGE_IP netmask $BRIDGE_MASK up
sudo ifconfig $BRIDGE:1 $GATEWAY_IP netmask $BRIDGE_MASK up
sudo ifconfig $BRIDGE:2 $HOST_IP netmask $BRIDGE_MASK up
sudo ip -6 addr add $BRIDGE_IPV6/64 dev $BRIDGE
sudo ip -6 addr add $HOST_IPV6/64 dev $BRIDGE:1
sudo ifconfig $BRIDGE $BRIDGE_IP netmask $BRIDGE_MASK up # its IP
sudo ifconfig $BRIDGE:1 $GATEWAY_IP netmask $BRIDGE_MASK up # IP announced by DHCP as gateway
sudo ifconfig $BRIDGE:2 $HOST_IP netmask $BRIDGE_MASK up # IP exported for LAN (dut) connections
sudo ip -6 addr add $BRIDGE_IPV6/64 dev $BRIDGE # its IPv6
sudo ip -6 addr add $HOST_IPV6/64 dev $BRIDGE:1 # IPv6 exported for LAN (dut) connections
sudo ip link add link $BRIDGE name $BRIDGE.3 type vlan id 3 # Create VLAN for PPPoE+VLAN tests
sudo ifconfig $BRIDGE.3 up
echo
echo "Network configuration script: TAP"
@ -73,10 +75,20 @@ sudo cp test/dhcpd.conf /etc/dhcp/dhcpd.conf
sudo chmod a+w /var/lib/dhcp/*
sudo dhcpd mg_bridge0 &
echo
# Setup Router Advertising server
echo "radvd listening at $BRIDGE_IPV6"
sudo ip link set $BRIDGE up # there's no physical port, so we need to set link up for radvd to work
sudo radvd -n -d 5 -C test/radvd.conf &
echo
# Setup PPPoE server
echo "pppoe-server listening at $BRIDGE.3"
printf "lock\n" | sudo tee /etc/ppp/options
sudo pppoe-server -F -D -O test/pppoe-server-options -I $BRIDGE.3 &
echo
# Export generic server addresses so DUTs can connect to them
echo "Host listening at $HOST_IP and $HOST_IPV6"
export HOST_IP
export HOST_IPV6