Only add iptables rules for this family, and also only check for forwarding for this family. --- src/network/bridge_driver.c | 27 +++++++++++++++++++++------ 1 files changed, 21 insertions(+), 6 deletions(-) diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c index e3e8dc2..6bd4217 100644 --- a/src/network/bridge_driver.c +++ b/src/network/bridge_driver.c @@ -1788,7 +1788,9 @@ networkAddIptablesRules(struct network_driver *driver, return -1; for (ii = 0; - (ipdef = virNetworkDefGetIpByIndex(network->def, AF_UNSPEC, ii)); + (ipdef = virNetworkDefGetIpByIndex(network->def, + network->def->forwardFamily, + ii)); ii++) { /* Add address-specific iptables rules */ if (networkAddIpSpecificIptablesRules(driver, network, ipdef) < 0) { @@ -1803,7 +1805,9 @@ err: * added for previous IP addresses. */ while ((--ii >= 0) && - (ipdef = virNetworkDefGetIpByIndex(network->def, AF_UNSPEC, ii))) { + (ipdef = virNetworkDefGetIpByIndex(network->def, + network->def->forwardFamily, + ii))) { networkRemoveIpSpecificIptablesRules(driver, network, ipdef); } networkRemoveGeneralIptablesRules(driver, network); @@ -1819,7 +1823,9 @@ networkRemoveIptablesRules(struct network_driver *driver, virNetworkIpDefPtr ipdef; for (ii = 0; - (ipdef = virNetworkDefGetIpByIndex(network->def, AF_UNSPEC, ii)); + (ipdef = virNetworkDefGetIpByIndex(network->def, + network->def->forwardFamily, + ii)); ii++) { networkRemoveIpSpecificIptablesRules(driver, network, ipdef); } @@ -2173,9 +2179,18 @@ networkStartNetworkVirtual(struct network_driver *driver, goto err2; /* If forwardType != NONE, check for IP forwarding */ - if (network->def->forwardType != VIR_NETWORK_FORWARD_NONE && - networkCheckIpForwarding(v4present, v6present) < 0) { - goto err3; + if (network->def->forwardType != VIR_NETWORK_FORWARD_NONE) { + if (network->def->forwardFamily) { + /* if forwardFamily is set, we have at least a corresponding + * family's address + */ + if (networkCheckIpForwarding(network->def->forwardFamily == AF_INET, + network->def->forwardFamily == AF_INET6) < 0) + goto err3; + } else { + if (networkCheckIpForwarding(v4present, v6present) < 0) + goto err3; + } }